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! 56: <body bgcolor=#FFFFFF link=blue vlink=purple class="Normal" lang=EN-US><div class=Section1>
! 57: <h2>Session Two: Statistics/Chart (Behrouz)</h2>
! 58: <p><span style='layout-grid-mode:line'>In LON-CAPA, we are involved with two kinds
! 59: of large data sets: </span></p>
! 60: <p> <span style='layout-grid-mode:line'>1)<span
! 61: style='font:7.0pt "Times New Roman"'> </span></span> <span
! 62: style='layout-grid-mode:line'>Educational resources such as </span>web pages,
! 63: demonstrations, simulations, and individualized problems designed for use on
! 64: homework assignments, quizzes, and examinations<span style='layout-grid-mode:
! 65: line'>; </span></p>
! 66: <p> <span style='layout-grid-mode:line'>2)<span
! 67: style='font:7.0pt "Times New Roman"'> </span></span> <span
! 68: style='layout-grid-mode:line'>Information about users who create, modify, assess,
! 69: or use these resources. </span></p>
! 70: <p><span style='layout-grid-mode:line'>Usually, instructors/ course coordinators
! 71: wish to assess the studentsÕ educational situation or evaluate the problems
! 72: have bee presented in the course, after the students used the educational materials.
! 73: There are two main modules in LON_CAPA that provide the statistical information
! 74: for instructors/ course-coordinators: <i>lonchart.pm </i></span><span style='layout-grid-mode:line'>and
! 75: <i>lonstatistics.pm</i></span><span
! 76: style='layout-grid-mode:line'>. When an instructorÕs access is authorized, he/she
! 77: can find useful reports about the course, regarding maps, problems included
! 78: in each map, and the students who tried to solve the problems. When an instructor
! 79: selects a course, he/she has two buttons in remote control to obtain the statistical
! 80: information: Ò<i>chart</i></span><span style='layout-grid-mode:
! 81: line'>Ó or Ò<i>stat</i></span><span style='layout-grid-mode:line'>Ó button.</span></p>
! 82: <h3 style='line-height:150%'><a name="_Toc421867139"><span style='layout-grid-mode:
! 83: line'>lonchart.pm</span></a></h3>
! 84: <p><span style='font-size:11.0pt;layout-grid-mode:line'>Ò<i>chart</i></span><span
! 85: style='font-size:11.0pt;layout-grid-mode:line'>Ó button in remote control calls
! 86: lonchart.pm, which provides a quick review of students tries on different problems
! 87: of a course for an instructor. The instructor may monitor the number of
! 88: tries of every student in each map and its problems.<span style='color:red'>
! 89: </span>The number of solved problems in a map is shown in the end of each map
! 90: with a different color (green). The overall solved problems and total number
! 91: of problems in the map can be seen at the end of line according to every individual
! 92: student in a different color (blue). A sample of chart is shown in <b>Fig. 3.2.1</b></span></p>
! 93: <p><span style='font-size:9.0pt;border:solid windowtext .5pt;
! 94: padding:0in'>xxxxxxx1:msu ! 001 ! 1*11*121 <span style='color:green'>8</span>
! 95: 1231.31423212 <span style='color:green'>12 </span> 2111211284.131 <span style='color:green'>13</span>
! 96: É 231113112221 <span style='color:green'>12</span> <span style='color:navy'>162
! 97: / 188<br>
! 98: </span>xxxxxxx2:msu ! 003 ! 12113162 <span style='color:green'>8</span> 1+11
! 99: 1 21x111<span style='color:green'>10</span> 11211322246132 <span
! 100: style='color:green'>14</span> É ############<span style='color:green'> 0
! 101: </span><span
! 102: style='color:navy'>149 / 188</span><span style='color:green'> <br>
! 103: <br>
! 104: </span></span></p>
! 105: <div style='border:solid windowtext .5pt;padding:1.0pt 0in 1.0pt 1.0pt'>
! 106: <p style='border:none;padding:0in;'>1..9: correct by student in 1..9 tries </p>
! 107: <p style='border:none;padding:0in;'>*: correct by student in more than 9 tries
! 108: </p>
! 109: <p style='border:none;padding:0in;'>+: correct by override </p>
! 110: <p style='border:none;padding:0in;'>-: incorrect by override </p>
! 111: <p style='border:none;padding:0in;'>.: incorrect attempted </p>
! 112: <p style='border:none;padding:0in;'>#: ungraded attempted </p>
! 113: <p style='border:none;padding:0in;'>Ô Ô: not attempted </p>
! 114: <p style='border:none;padding:0in;'>x: excused</p>
! 115: </div>
! 116: <p><span style='font-size:14.0pt'><b>Fig. 3.2.1</b></span><span
! 117: style='font-size:14.0pt'> Chart of map, problems, and studentsÕ tries, and a quick
! 118: statistics of solved problems</span></p>
! 119: <p><span style='layout-grid-mode:line'>1. When an instructor loads the chart in
! 120: his/her machine once, its data is cached in his/her local machine. If he/she
! 121: runs the chart again, the course chart is loaded very quickly from the cache.</span></p>
! 122: <p><span style='layout-grid-mode:line'>2. An instructor can sort the chart according
! 123: to user name, last name, as well as, the section which student belongs to.</span></p>
! 124: <div style='border:solid windowtext .5pt;padding:1.0pt 4.0pt 1.0pt 4.0pt'>
! 125: <p align=center style='text-align:center;
! 126: border:none;padding:0in;'><span style='font-size:8.0pt;font-family:Arial;
! 127: display:none'>Top of Form</span></p>
! 128: </div>
! 129: <div style='border:solid windowtext .5pt;padding:1.0pt 4.0pt 0in 4.0pt'>
! 130: <p align=center style='
! 131: text-align:center;
! 132: border:none;padding:
! 133: 0in;'><b>Sort by: </b><span
! 134: style='font-weight:normal'> <img width=53 height=23
! 135: src="Session%20Tw2_files/image003.png" v:shapes="_x0000_i1025">
! 136: <img width=51 height=23
! 137: src="Session%20Tw2_files/image006.png" v:shapes="_x0000_i1026">
! 138: <img width=40 height=23
! 139: src="Session%20Tw2_files/image009.png" v:shapes="_x0000_i1027"> <br>
! 140: <br>
! 141: </span></p>
! 142: </div>
! 143: <p>3. The instructor is able to select the ÒexpiredÓ students (who dropped the
! 144: course earlier) or ÒactiveÓ students or ÒanyÓ (all the) students.</p>
! 145: <div style='border:solid windowtext .5pt;padding:1.0pt 4.0pt 1.0pt 0in'>
! 146: <p align=center style='
! 147: text-align:center;
! 148: border:none;padding:0in;
! 149: '><br>
! 150: <b>Student Status: </b><span style='font-weight:normal'> <img width=66 height=18
! 151: src="Session%20Tw2_files/image012.png" v:shapes="_x0000_i1028">
! 152: <img width=77 height=23
! 153: src="Session%20Tw2_files/image015.png" v:shapes="_x0000_i1029"> </span></p>
! 154: </div>
! 155: <div style='border:none;border-top:solid windowtext .75pt;padding:1.0pt 0in 0in 0in'>
! 156: <p align=center style='text-align:center;border:none;
! 157: padding:0in;'><span
! 158: style='font-size:8.0pt;font-family:Arial;display:none'>Bottom of Form</span></p>
! 159: </div>
! 160: <h3 style='line-height:200%'><a name="_Toc421867140"><span style='layout-grid-mode:
! 161: line'>lonstatistics.pm</span></a></h3>
! 162: <p><span style='layout-grid-mode:line'>In ÒstatÓ button of Òremote controlÓ, a
! 163: menu with three options is provided for instructor: </span></p>
! 164: <p> <span style='layout-grid-mode:line'>1)<span
! 165: style='font:7.0pt "Times New Roman"'> </span></span> <span
! 166: style='layout-grid-mode:line'>Problem stats</span></p>
! 167: <p> <span style='layout-grid-mode:line'>2)<span
! 168: style='font:7.0pt "Times New Roman"'> </span></span> <span
! 169: style='layout-grid-mode:line'>Problem Analysis</span></p>
! 170: <p> <span style='font-size:11.0pt;
! 171: layout-grid-mode:line'>3)<span style='font:7.0pt "Times New Roman"'>
! 172: </span></span> <span style='layout-grid-mode:line'>Student Assessment</span></p>
! 173: <h4 style='line-height:150%'><span style='font-size:6.0pt;font-family:Arial;
! 174: layout-grid-mode:line;font-weight:normal'> </span></h4>
! 175: <h4><span style='font-size:12.0pt;font-family:Arial;layout-grid-mode:line'>
! 176: </span></h4>
! 177: <h4><span style='font-size:12.0pt;font-family:Arial;layout-grid-mode:line;
! 178: font-weight:normal'>Problem Stats</span></h4>
! 179: <p><span style='layout-grid-mode:line'>Ò<i>Problem Stats</i></span><span
! 180: style='layout-grid-mode:line'>Ó button provides a table<a href="#_ftn1" name="_ftnref1" title=""><span class=MsoFootnoteReference>
! 181: [1] </span></a> which includes statistical information about every problem,
! 182: as you see in <b>Fig. 3.2.2</b></span><span style='layout-grid-mode:line'>.
! 183: The function ExtractStudentData in lonstatitics Perl Module fetches all the
! 184: data from a particular student<a name="_Hlt9981185"></a> .db file into a big
! 185: hash in local machine. It uses dump function, which communicates via lonc/lond
! 186: to get the student data from student repository (data server) and then all versions
! 187: of student submissions computed according to every problem. The results are
! 188: stored in an array in the memory. Before computing the studentsÕ tries
! 189: in a particular problem, the different parts of problem are distinguished by
! 190: considering the meta-data, which is provided for every problem. </span></p>
! 191: <p><span style='"HYPERLINK \0022http\:\/\/deepthought\.lite\.msu\.edu\/res\/msu\/mmp\/kap1\/calckap1\.sequence\0022 \\t \0022_blank\0022"'><span
! 192: class=MsoHyperlink><span style='color:blue'>Homework Set 1</span></span></span>
! 193: </p>
! 194: <table border=1 cellspacing=0 cellpadding=0>
! 195: <tr>
! 196: <td width=21 class="Normal"> <p align=center style='text-align:center'><b>P#</b></p></td>
! 197: <td width=72 class="Normal"> <p align=center style='text-align:center'><b>
! 198: <img width=94 height=23
! 199: src="Session%20Tw2_files/image018.png" v:shapes="_x0000_i1030"> </b></p></td>
! 200: <td width=37 class="Normal"> <p align=center style='text-align:center'><b>
! 201: <img width=41 height=23
! 202: src="Session%20Tw2_files/image021.png" v:shapes="_x0000_i1031"> </b></p></td>
! 203: <td width=29 class="Normal"> <p align=center style='text-align:center'><b>
! 204: <img width=31 height=23
! 205: src="Session%20Tw2_files/image024.png" v:shapes="_x0000_i1032"> </b></p></td>
! 206: <td width=26 class="Normal"> <p align=center style='text-align:center'><b>
! 207: <img width=28 height=23
! 208: src="Session%20Tw2_files/image027.png" v:shapes="_x0000_i1033"> </b></p></td>
! 209: <td width=30 class="Normal"> <p align=center style='text-align:center'><b>
! 210: <img width=32 height=23
! 211: src="Session%20Tw2_files/image030.png" v:shapes="_x0000_i1034"> </b></p></td>
! 212: <td width=31 class="Normal"> <p align=center style='text-align:center'><b>
! 213: <img width=33 height=23
! 214: src="Session%20Tw2_files/image033.png" v:shapes="_x0000_i1035"> </b></p></td>
! 215: <td width=29 class="Normal"> <p align=center style='text-align:center'><b>
! 216: <img width=31 height=23
! 217: src="Session%20Tw2_files/image036.png" v:shapes="_x0000_i1036"> </b></p></td>
! 218: <td width=36 class="Normal"> <p align=center style='text-align:center'><b>
! 219: <img width=40 height=23
! 220: src="Session%20Tw2_files/image039.png" v:shapes="_x0000_i1037"> </b></p></td>
! 221: <td width=32 class="Normal"> <p align=center style='text-align:center'><b>
! 222: <img width=35 height=23
! 223: src="Session%20Tw2_files/image042.png" v:shapes="_x0000_i1038"> </b></p></td>
! 224: <td width=26 class="Normal"> <p align=center style='text-align:center'><b>
! 225: <img width=28 height=23
! 226: src="Session%20Tw2_files/image045.png" v:shapes="_x0000_i1039"> </b></p></td>
! 227: <td width=33 class="Normal"> <p align=center style='text-align:center'><b>
! 228: <img width=36 height=23
! 229: src="Session%20Tw2_files/image048.png" v:shapes="_x0000_i1040"> </b></p></td>
! 230: <td width=35 class="Normal"> <p align=center style='text-align:center'><b>
! 231: <img width=38 height=23
! 232: src="Session%20Tw2_files/image051.png" v:shapes="_x0000_i1041"> </b></p></td>
! 233: <td width=37 class="Normal"> <p align=center style='text-align:center'><b>
! 234: <img width=41 height=23
! 235: src="Session%20Tw2_files/image054.png" v:shapes="_x0000_i1042"> </b></p></td>
! 236: </tr>
! 237: <tr>
! 238: <td width=21 class="Normal"> <p>1</p></td>
! 239: <td width=72 class="Normal"> <p><span style='font-size:9.0pt'><span style='"HYPERLINK \0022http\:\/\/deepthought\.lite\.msu\.edu\/res\/msu\/physicslib\/msuphysicslib\/01_Math_1\/msu-prob11\.problem\0022 \\t \0022_blank\0022"'><span
! 240: class=MsoHyperlink><span style='color:blue'>Calculator Skills</span></span></span></span></p></td>
! 241: <td width=37 bgcolor="white" class="Normal"> <p>256</p></td>
! 242: <td width=29 bgcolor="white" class="Normal"> <p>267</p></td>
! 243: <td width=26 bgcolor="white" class="Normal"> <p>3</p></td>
! 244: <td width=30 bgcolor="white" class="Normal"> <p>1.04</p></td>
! 245: <td width=31 bgcolor="white" class="Normal"> <p>256</p></td>
! 246: <td width=29 bgcolor="white" class="Normal"> <p>0</p></td>
! 247: <td width=36 bgcolor="white" class="Normal"> <p>0.0</p></td>
! 248: <td width=32 bgcolor="white" class="Normal"> <p>0.04</p></td>
! 249: <td width=26 bgcolor="white" class="Normal"> <p>0.2</p></td>
! 250: <td width=33 bgcolor="white" class="Normal"> <p>5.7</p></td>
! 251: <td width=35 bgcolor="white" class="Normal"> <p>0.03</p></td>
! 252: <td width=37 bgcolor="white" class="Normal"> <p>0.00</p></td>
! 253: </tr>
! 254: <tr>
! 255: <td width=21 class="Normal"> <p>2</p></td>
! 256: <td width=72 class="Normal"> <p><span style='font-size:9.0pt'><span style='"HYPERLINK \0022http\:\/\/deepthought\.lite\.msu\.edu\/res\/msu\/physicslib\/msuphysicslib\/01_Math_1\/msu-prob10\.problem\0022 \\t \0022_blank\0022"'><span
! 257: class=MsoHyperlink><span style='color:blue'>Numbers</span></span></span></span></p></td>
! 258: <td width=37 bgcolor="white" class="Normal"> <p>256</p></td>
! 259: <td width=29 bgcolor="white" class="Normal"> <p>414</p></td>
! 260: <td width=26 bgcolor="white" class="Normal"> <p>17</p></td>
! 261: <td width=30 bgcolor="white" class="Normal"> <p>1.62</p></td>
! 262: <td width=31 bgcolor="white" class="Normal"> <p>255</p></td>
! 263: <td width=29 bgcolor="white" class="Normal"> <p>0</p></td>
! 264: <td width=36 bgcolor="white" class="Normal"> <p>0.4</p></td>
! 265: <td width=32 bgcolor="white" class="Normal"> <p>0.38</p></td>
! 266: <td width=26 bgcolor="white" class="Normal"> <p>1.6</p></td>
! 267: <td width=33 bgcolor="white" class="Normal"> <p>5.7</p></td>
! 268: <td width=35 bgcolor="white" class="Normal"> <p>0.11</p></td>
! 269: <td width=37 bgcolor="white" class="Normal"> <p>0.02</p></td>
! 270: </tr>
! 271: <tr>
! 272: <td width=21 class="Normal"> <p>3</p></td>
! 273: <td width=72 class="Normal"> <p><span style='font-size:9.0pt'><span style='"HYPERLINK \0022http\:\/\/deepthought\.lite\.msu\.edu\/res\/msu\/physicslib\/msuphysicslib\/03_Units_Scaling\/msu-prob22\.problem\0022 \\t \0022_blank\0022"'><span
! 274: class=MsoHyperlink><span style='color:blue'>Speed</span></span></span></span></p></td>
! 275: <td width=37 bgcolor="white" class="Normal"> <p>256</p></td>
! 276: <td width=29 bgcolor="white" class="Normal"> <p>698</p></td>
! 277: <td width=26 bgcolor="white" class="Normal"> <p>13</p></td>
! 278: <td width=30 bgcolor="white" class="Normal"> <p>2.73</p></td>
! 279: <td width=31 bgcolor="white" class="Normal"> <p>255</p></td>
! 280: <td width=29 bgcolor="white" class="Normal"> <p>0</p></td>
! 281: <td width=36 bgcolor="white" class="Normal"> <p>0.4</p></td>
! 282: <td width=32 bgcolor="white" class="Normal"> <p>0.63</p></td>
! 283: <td width=26 bgcolor="white" class="Normal"> <p>2.2</p></td>
! 284: <td width=33 bgcolor="white" class="Normal"> <p>1.9</p></td>
! 285: <td width=35 bgcolor="white" class="Normal"> <p>0.06</p></td>
! 286: <td width=37 bgcolor="white" class="Normal"> <p>0.02</p></td>
! 287: </tr>
! 288: <tr>
! 289: <td width=21 class="Normal"> <p>4</p></td>
! 290: <td width=72 class="Normal"> <p><span style='font-size:9.0pt'><span style='"HYPERLINK \0022http\:\/\/deepthought\.lite\.msu\.edu\/res\/msu\/physicslib\/msuphysicslib\/01_Math_1\/msu-prob13\.problem\0022 \\t \0022_blank\0022"'><span
! 291: class=MsoHyperlink><span style='color:blue'>Perimeter</span></span></span></span></p></td>
! 292: <td width=37 bgcolor="white" class="Normal"> <p>256</p></td>
! 293: <td width=29 bgcolor="white" class="Normal"> <p>388</p></td>
! 294: <td width=26 bgcolor="white" class="Normal"> <p>7</p></td>
! 295: <td width=30 bgcolor="white" class="Normal"> <p>1.52</p></td>
! 296: <td width=31 bgcolor="white" class="Normal"> <p>255</p></td>
! 297: <td width=29 bgcolor="white" class="Normal"> <p>0</p></td>
! 298: <td width=36 bgcolor="white" class="Normal"> <p>0.4</p></td>
! 299: <td width=32 bgcolor="white" class="Normal"> <p>0.34</p></td>
! 300: <td width=26 bgcolor="white" class="Normal"> <p>0.9</p></td>
! 301: <td width=33 bgcolor="white" class="Normal"> <p>2.4</p></td>
! 302: <td width=35 bgcolor="white" class="Normal"> <p>-0.00</p></td>
! 303: <td width=37 bgcolor="white" class="Normal"> <p>0.02</p></td>
! 304: </tr>
! 305: <tr>
! 306: <td width=21 class="Normal"> <p>5</p></td>
! 307: <td width=72 class="Normal"> <p><span style='font-size:9.0pt'><span style='"HYPERLINK \0022http\:\/\/deepthought\.lite\.msu\.edu\/res\/msu\/physicslib\/devolibrary\/type-math\/fraction-rlt-235\.problem\0022 \\t \0022_blank\0022"'><span
! 308: class=MsoHyperlink><span style='color:blue'>Reduce a Fraction</span></span></span></span></p></td>
! 309: <td width=37 bgcolor="white" class="Normal"> <p>256</p></td>
! 310: <td width=29 bgcolor="white" class="Normal"> <p>315</p></td>
! 311: <td width=26 bgcolor="white" class="Normal"> <p>4</p></td>
! 312: <td width=30 bgcolor="white" class="Normal"> <p>1.23</p></td>
! 313: <td width=31 bgcolor="white" class="Normal"> <p>256</p></td>
! 314: <td width=29 bgcolor="white" class="Normal"> <p>0</p></td>
! 315: <td width=36 bgcolor="white" class="Normal"> <p>0.0</p></td>
! 316: <td width=32 bgcolor="white" class="Normal"> <p>0.19</p></td>
! 317: <td width=26 bgcolor="white" class="Normal"> <p>0.5</p></td>
! 318: <td width=33 bgcolor="white" class="Normal"> <p>2.3</p></td>
! 319: <td width=35 bgcolor="white" class="Normal"> <p>0.01</p></td>
! 320: <td width=37 bgcolor="white" class="Normal"> <p>0.00</p></td>
! 321: </tr>
! 322: <tr>
! 323: <td width=21 class="Normal"> <p>6</p></td>
! 324: <td width=72 class="Normal"> <p><span style='font-size:9.0pt'><span style='"HYPERLINK \0022http\:\/\/deepthought\.lite\.msu\.edu\/res\/msu\/physicslib\/devolibrary\/type-math\/fract-add-sub-div-p11\.problem\0022 \\t \0022_blank\0022"'><span
! 325: class=MsoHyperlink><span style='color:blue'>Calculating with Fractions</span></span></span></span></p></td>
! 326: <td width=37 bgcolor="white" class="Normal"> <p>256</p></td>
! 327: <td width=29 bgcolor="white" class="Normal"> <p>393</p></td>
! 328: <td width=26 bgcolor="white" class="Normal"> <p>7</p></td>
! 329: <td width=30 bgcolor="white" class="Normal"> <p>1.54</p></td>
! 330: <td width=31 bgcolor="white" class="Normal"> <p>255</p></td>
! 331: <td width=29 bgcolor="white" class="Normal"> <p>0</p></td>
! 332: <td width=36 bgcolor="white" class="Normal"> <p>0.4</p></td>
! 333: <td width=32 bgcolor="white" class="Normal"> <p>0.35</p></td>
! 334: <td width=26 bgcolor="white" class="Normal"> <p>0.9</p></td>
! 335: <td width=33 bgcolor="white" class="Normal"> <p>2.0</p></td>
! 336: <td width=35 bgcolor="white" class="Normal"> <p>0.15</p></td>
! 337: <td width=37 bgcolor="white" class="Normal"> <p>0.02</p></td>
! 338: </tr>
! 339: <tr>
! 340: <td width=21 class="Normal"> <p>7</p></td>
! 341: <td width=72 class="Normal"> <p><span style='font-size:9.0pt'><span style='"HYPERLINK \0022http\:\/\/deepthought\.lite\.msu\.edu\/res\/msu\/physicslib\/msuphysicslib\/01_Math_1\/msu-prob04\.problem\0022 \\t \0022_blank\0022"'><span
! 342: class=MsoHyperlink><span style='color:blue'>Area of a Balloon</span></span></span></span></p></td>
! 343: <td width=37 bgcolor="white" class="Normal"> <p>254</p></td>
! 344: <td width=29 bgcolor="white" class="Normal"> <p>601</p></td>
! 345: <td width=26 bgcolor="white" class="Normal"> <p>12</p></td>
! 346: <td width=30 bgcolor="white" class="Normal"> <p>2.37</p></td>
! 347: <td width=31 bgcolor="white" class="Normal"> <p>247</p></td>
! 348: <td width=29 bgcolor="white" class="Normal"> <p>0</p></td>
! 349: <td width=36 bgcolor="white" class="Normal"> <p>2.8</p></td>
! 350: <td width=32 bgcolor="white" class="Normal"> <p>0.59</p></td>
! 351: <td width=26 bgcolor="white" class="Normal"> <p>1.8</p></td>
! 352: <td width=33 bgcolor="white" class="Normal"> <p>1.8</p></td>
! 353: <td width=35 bgcolor="white" class="Normal"> <p>-0.05</p></td>
! 354: <td width=37 bgcolor="white" class="Normal"> <p>-0.02</p></td>
! 355: </tr>
! 356: <tr>
! 357: <td width=21 class="Normal"> <p>8</p></td>
! 358: <td width=72 class="Normal"> <p><span style='font-size:9.0pt'><span style='"HYPERLINK \0022http\:\/\/deepthought\.lite\.msu\.edu\/res\/msu\/physicslib\/msuphysicslib\/01_Math_1\/msu-prob07\.problem\0022 \\t \0022_blank\0022"'><span
! 359: class=MsoHyperlink><span style='color:blue'>Volume of a Balloon</span></span></span></span></p></td>
! 360: <td width=37 bgcolor="white" class="Normal"> <p>252</p></td>
! 361: <td width=29 bgcolor="white" class="Normal"> <p>565</p></td>
! 362: <td width=26 bgcolor="white" class="Normal"> <p>11</p></td>
! 363: <td width=30 bgcolor="white" class="Normal"> <p>2.24</p></td>
! 364: <td width=31 bgcolor="white" class="Normal"> <p>243</p></td>
! 365: <td width=29 bgcolor="white" class="Normal"> <p>0</p></td>
! 366: <td width=36 bgcolor="white" class="Normal"> <p>3.6</p></td>
! 367: <td width=32 bgcolor="white" class="Normal"> <p>0.57</p></td>
! 368: <td width=26 bgcolor="white" class="Normal"> <p>1.9</p></td>
! 369: <td width=33 bgcolor="white" class="Normal"> <p>2.0</p></td>
! 370: <td width=35 bgcolor="white" class="Normal"> <p>-0.06</p></td>
! 371: <td width=37 bgcolor="white" class="Normal"> <p>-0.03</p></td>
! 372: </tr>
! 373: <tr>
! 374: <td width=21 class="Normal"> <p>9</p></td>
! 375: <td width=72 class="Normal"> <p><span style='font-size:9.0pt'><span style='"HYPERLINK \0022http\:\/\/deepthought\.lite\.msu\.edu\/res\/msu\/physicslib\/msuphysicslib\/01_Math_1\/msu-prob12\.problem\0022 \\t \0022_blank\0022"'><span
! 376: class=MsoHyperlink><span style='color:blue'>Numerical Value of Fraction</span></span></span></span></p></td>
! 377: <td width=37 bgcolor="white" class="Normal"> <p>256</p></td>
! 378: <td width=29 bgcolor="white" class="Normal"> <p>268</p></td>
! 379: <td width=26 bgcolor="white" class="Normal"> <p>4</p></td>
! 380: <td width=30 bgcolor="white" class="Normal"> <p>1.05</p></td>
! 381: <td width=31 bgcolor="white" class="Normal"> <p>256</p></td>
! 382: <td width=29 bgcolor="white" class="Normal"> <p>0</p></td>
! 383: <td width=36 bgcolor="white" class="Normal"> <p>0.0</p></td>
! 384: <td width=32 bgcolor="white" class="Normal"> <p>0.04</p></td>
! 385: <td width=26 bgcolor="white" class="Normal"> <p>0.2</p></td>
! 386: <td width=33 bgcolor="white" class="Normal"> <p>3.4</p></td>
! 387: <td width=35 bgcolor="white" class="Normal"> <p>0.01</p></td>
! 388: <td width=37 bgcolor="white" class="Normal"> <p>0.00</p></td>
! 389: </tr>
! 390: <tr>
! 391: <td width=21 class="Normal"> <p>10</p></td>
! 392: <td width=72 class="Normal"> <p><span style='font-size:9.0pt'><span style='"HYPERLINK \0022http\:\/\/deepthought\.lite\.msu\.edu\/res\/msu\/physicslib\/msuphysicslib\/03_Units_Scaling\/msu-prob17\.problem\0022 \\t \0022_blank\0022"'><span
! 393: class=MsoHyperlink><span style='color:blue'>Units</span></span></span></span></p></td>
! 394: <td width=37 bgcolor="white" class="Normal"> <p>256</p></td>
! 395: <td width=29 bgcolor="white" class="Normal"> <p>1116</p></td>
! 396: <td width=26 bgcolor="white" class="Normal"> <p>20</p></td>
! 397: <td width=30 bgcolor="white" class="Normal"> <p>4.36</p></td>
! 398: <td width=31 bgcolor="white" class="Normal"> <p>246</p></td>
! 399: <td width=29 bgcolor="white" class="Normal"> <p>0</p></td>
! 400: <td width=36 bgcolor="white" class="Normal"> <p>3.9</p></td>
! 401: <td width=32 bgcolor="white" class="Normal"> <p>0.78</p></td>
! 402: <td width=26 bgcolor="white" class="Normal"> <p>4.2</p></td>
! 403: <td width=33 bgcolor="white" class="Normal"> <p>1.9</p></td>
! 404: <td width=35 bgcolor="white" class="Normal"> <p>0.18</p></td>
! 405: <td width=37 bgcolor="white" class="Normal"> <p>0.03</p></td>
! 406: </tr>
! 407: <tr>
! 408: <td width=21 class="Normal"> <p>11</p></td>
! 409: <td width=72 class="Normal"> <p><span style='font-size:9.0pt'><span style='"HYPERLINK \0022http\:\/\/deepthought\.lite\.msu\.edu\/res\/msu\/physicslib\/msuphysicslib\/06_Vectors_Scalars\/msu-prob07\.problem\0022 \\t \0022_blank\0022"'><span
! 410: class=MsoHyperlink><span style='color:blue'>Vector versus Scalar</span></span></span></span></p></td>
! 411: <td width=37 bgcolor="white" class="Normal"> <p>254</p></td>
! 412: <td width=29 bgcolor="white" class="Normal"> <p>749</p></td>
! 413: <td width=26 bgcolor="white" class="Normal"> <p>11</p></td>
! 414: <td width=30 bgcolor="white" class="Normal"> <p>2.95</p></td>
! 415: <td width=31 bgcolor="white" class="Normal"> <p>251</p></td>
! 416: <td width=29 bgcolor="white" class="Normal"> <p>0</p></td>
! 417: <td width=36 bgcolor="white" class="Normal"> <p>1.2</p></td>
! 418: <td width=32 bgcolor="white" class="Normal"> <p>0.66</p></td>
! 419: <td width=26 bgcolor="white" class="Normal"> <p>2.2</p></td>
! 420: <td width=33 bgcolor="white" class="Normal"> <p>1.1</p></td>
! 421: <td width=35 bgcolor="white" class="Normal"> <p>-0.05</p></td>
! 422: <td width=37 bgcolor="white" class="Normal"> <p>-0.05</p></td>
! 423: </tr>
! 424: <tr>
! 425: <td width=21 class="Normal"> <p>12</p></td>
! 426: <td width=72 class="Normal"> <p><span style='font-size:9.0pt'><span style='"HYPERLINK \0022http\:\/\/deepthought\.lite\.msu\.edu\/res\/msu\/physicslib\/msuphysicslib\/06_Vectors_Scalars\/msu-prob10\.problem\0022 \\t \0022_blank\0022"'><span
! 427: class=MsoHyperlink><span style='color:blue'>Adding Vectors</span></span></span></span></p></td>
! 428: <td width=37 bgcolor="white" class="Normal"> <p>253</p></td>
! 429: <td width=29 bgcolor="white" class="Normal"> <p>1026</p></td>
! 430: <td width=26 bgcolor="white" class="Normal"> <p>20</p></td>
! 431: <td width=30 bgcolor="white" class="Normal"> <p>4.06</p></td>
! 432: <td width=31 bgcolor="white" class="Normal"> <p>250</p></td>
! 433: <td width=29 bgcolor="white" class="Normal"> <p>0</p></td>
! 434: <td width=36 bgcolor="white" class="Normal"> <p>1.2</p></td>
! 435: <td width=32 bgcolor="white" class="Normal"> <p>0.76</p></td>
! 436: <td width=26 bgcolor="white" class="Normal"> <p>3.6</p></td>
! 437: <td width=33 bgcolor="white" class="Normal"> <p>1.8</p></td>
! 438: <td width=35 bgcolor="white" class="Normal"> <p>0.14</p></td>
! 439: <td width=37 bgcolor="white" class="Normal"> <p>0.00</p></td>
! 440: </tr>
! 441: <tr>
! 442: <td width=21 class="Normal"> <p>13</p></td>
! 443: <td width=72 class="Normal"> <p><span style='font-size:9.0pt'><span style='"HYPERLINK \0022http\:\/\/deepthought\.lite\.msu\.edu\/res\/msu\/physicslib\/msuphysicslib\/02_Math_2_Trig\/msu-prob13\.problem\0022 \\t \0022_blank\0022"'><span
! 444: class=MsoHyperlink><span style='color:blue'>Proximity</span></span></span></span></p></td>
! 445: <td width=37 bgcolor="white" class="Normal"> <p>249</p></td>
! 446: <td width=29 bgcolor="white" class="Normal"> <p>663</p></td>
! 447: <td width=26 bgcolor="white" class="Normal"> <p>19</p></td>
! 448: <td width=30 bgcolor="white" class="Normal"> <p>2.66</p></td>
! 449: <td width=31 bgcolor="white" class="Normal"> <p>239</p></td>
! 450: <td width=29 bgcolor="white" class="Normal"> <p>1</p></td>
! 451: <td width=36 bgcolor="white" class="Normal"> <p>3.6</p></td>
! 452: <td width=32 bgcolor="white" class="Normal"> <p>0.64</p></td>
! 453: <td width=26 bgcolor="white" class="Normal"> <p>2.3</p></td>
! 454: <td width=33 bgcolor="white" class="Normal"> <p>2.8</p></td>
! 455: <td width=35 bgcolor="white" class="Normal"> <p>0.11</p></td>
! 456: <td width=37 bgcolor="white" class="Normal"> <p>-0.10</p></td>
! 457: </tr>
! 458: </table>
! 459: <p><span style='font-size:14.0pt'><b>Fig. 3.2.2</b></span><span
! 460: style='font-size:14.0pt'>: Statistics table includes general statistics of every
! 461: problem of the course</span></p>
! 462: <p><span style='font-size:11.0pt;layout-grid-mode:line'>Every part of <i>multi-part</i></span><span style='font-size:11.0pt;layout-grid-mode:
! 463: line'> problems is distinguished as a separate problem. The <i>multi-instance</i></span><span
! 464: style='font-size:11.0pt;layout-grid-mode:line'> problem is also considered separately,
! 465: because a particular problem or one part of it might be used in different maps.
! 466: Finally, the array, which includes all computed information from all students,
! 467: sorted according to the problem order, underlying in homework sets order. Therefore,
! 468: in this step we can compute the following statistical information:</span></p>
! 469: <p> <span style='font-size:11.0pt;
! 470: layout-grid-mode:line'>1.<span style='font:7.0pt "Times New Roman"'>
! 471: </span></span> <span style='font-size:11.0pt;layout-grid-mode:line'><b>#Stdnts</b></span><span
! 472: style='font-size:11.0pt;layout-grid-mode:line'>: Total
! 473: number of students who take a look at the problem.(Let #Stdnts is equal to <i>n</i></span><span style='font-size:
! 474: 11.0pt;layout-grid-mode:line'>)</span></p>
! 475: <p> <span style='font-size:11.0pt;
! 476: layout-grid-mode:line'>2.<span style='font:7.0pt "Times New Roman"'>
! 477: </span></span> <span style='font-size:11.0pt;layout-grid-mode:line'><b>Tries:</b></span><span
! 478: style='font-size:11.0pt;layout-grid-mode:line'>
! 479: Total number of tries to solve the problem (</span><span style='font-size:11.0pt'>
! 480: <img width=28 height=34
! 481: src="Session%20Tw2_files/image057.png" v:shapes="_x0000_i1043"> where <i><sub>
! 482: <img width=12 height=18
! 483: src="Session%20Tw2_files/image060.png" v:shapes="_x0000_i1044"> </sub></i></span><span style='font-size:11.0pt'>denote
! 484: a student try<span style='layout-grid-mode:line'>).</span></span></p>
! 485: <p> <span style='font-size:11.0pt;
! 486: layout-grid-mode:line'>3.<span style='font:7.0pt "Times New Roman"'>
! 487: </span></span> <span style='font-size:11.0pt;layout-grid-mode:line'><b>Mod:
! 488: </b></span><span style='font-size:11.0pt;layout-grid-mode:line'>
! 489: Mode, </span><span style='font-size:11.0pt'>Maximum Number of Tries for solving
! 490: the problem.</span></p>
! 491: <p> <span style='font-size:11.0pt;
! 492: layout-grid-mode:line'>4.<span style='font:7.0pt "Times New Roman"'>
! 493: </span></span> <span style='font-size:11.0pt'><b>Mean:</b></span><span
! 494: style='font-size:11.0pt'> Average Number
! 495: of the Tries. </span></p>
! 496: <p><span style='font-size:11.0pt'> <img width=11 height=13
! 497: src="Session%20Tw2_files/image063.png" v:shapes="_x0000_i1045"> = <img width=38 height=34
! 498: src="Session%20Tw2_files/image066.png" v:shapes="_x0000_i1046"> </span></p>
! 499: <p> 5.<span style='font:7.0pt "Times New Roman"'> </span>
! 500: <span style='font-size:11.0pt;layout-grid-mode:line'><b>#YES:</b></span><span
! 501: style='font-size:11.0pt'> Number of students
! 502: solved the problem correctly.</span></p>
! 503: <p> <span style='font-size:11.0pt'>6.<span
! 504: style='font:7.0pt "Times New Roman"'> </span></span> <span
! 505: style='font-size:11.0pt'><b>#yes:</b></span><span style='font-size:11.0pt'>
! 506: Number of students solved the problem by override. </span></p>
! 507: <p><span style='font-size:11.0pt'>Sometimes, a student gets a correct answer after
! 508: talking with the instructor. This type of correct answer is called Òcorrected
! 509: by override.</span></p>
! 510: <p> <span style='font-size:11.0pt'>7.<span
! 511: style='font:7.0pt "Times New Roman"'> </span></span> <span
! 512: style='font-size:11.0pt'><b>%Wrng:</b></span><span style='font-size:11.0pt'>
! 513: Percentage of students tried to solve the problem but still incorrect. </span></p>
! 514: <p><span style='font-size:11.0pt'> <img width=137 height=31
! 515: src="Session%20Tw2_files/image069.png" v:shapes="_x0000_i1047"> </span></p>
! 516: <p> <span style='font-size:11.0pt'>8.<span
! 517: style='font:7.0pt "Times New Roman"'> </span></span> <span
! 518: style='font-size:11.0pt'><b>S.D.:</b></span><span style='font-size:11.0pt'>
! 519: <i>Standard Deviation</i></span><span style='font-size:11.0pt'> of the studentsÕ
! 520: tries. </span></p>
! 521: <p><span style='font-size:11.0pt'> <img width=98 height=40
! 522: src="Session%20Tw2_files/image072.png" v:shapes="_x0000_i1048"> </span></p>
! 523: <p> <span style='font-size:11.0pt'>9.<span
! 524: style='font:7.0pt "Times New Roman"'> </span></span> <span
! 525: style='font-size:11.0pt'><b>Skew.:</b></span><span style='font-size:11.0pt'>
! 526: <i>Skewness</i></span><span
! 527: style='font-size:11.0pt'> of the studentsÕ tries. </span></p>
! 528: <p><span style='font-size:11.0pt'> <img width=194 height=76
! 529: src="Session%20Tw2_files/image075.png" v:shapes="_x0000_i1049"> </span></p>
! 530: <p> <span style='font-size:11.0pt'>10.<span
! 531: style='font:7.0pt "Times New Roman"'> </span></span> <span
! 532: style='font-size:11.0pt'><b>DoDiff:</b></span><span style='font-size:11.0pt'>
! 533: <i>Degree of Difficulty</i></span><span
! 534: style='font-size:11.0pt'> of the problem. </span></p>
! 535: <p><span style='font-size:11.0pt'> <img width=100 height=38
! 536: src="Session%20Tw2_files/image078.png" v:shapes="_x0000_i1050"> </span></p>
! 537: <p><span style='font-size:11.0pt'>As you see Degree of Difficulty is always between
! 538: 0 and 1. This is a good factor for an instructor to determine whether a problem
! 539: is difficult, and what is the degree of this difficulty. Thus, DoDiff of each
! 540: problem is saved in its meta data.</span></p>
! 541: <p> <span style='font-size:11.0pt'>11.<span
! 542: style='font:7.0pt "Times New Roman"'> </span></span> <span
! 543: style='font-size:11.0pt'><b>Dis.F.:</b></span><span style='font-size:11.0pt'>
! 544: <i>Discrimination Factor</i></span><a href="#_ftn2" name="_ftnref2"
! 545: title=""><span class=MsoFootnoteReference><span style='font-size:11.0pt'> [2]
! 546: </span></span></a><span
! 547: style='font-size:11.0pt'> is an standard for evaluating how much a problem discriminates
! 548: between the upper and the lower students. First, all of the students are
! 549: sorted according to a criterion. Then, %27 of upper students and %27 lower students
! 550: are selected from the sorted students applying the mentioned criterion. Finally
! 551: we obtain the Discrimination Factor from the following difference:</span></p>
! 552: <p><span style='font-size:11.0pt'><i>Applied a criterion in %27 upper students
! 553: - Applied the same Criterion in %27 lower students.</i></span></p>
! 554: <p class=MsoBodyTextIndent2 align=left style='text-align:left;line-height:normal'>Discrimination
! 555: Factor is a number in interval [-1,1]. If this number is close to 1, it shows
! 556: that only upper students have solved this problem. If it is close to 0 it shows
! 557: that the upper students and the lowers are approximately the same in solving
! 558: the problem. If this number is negative, it shows that the lower students have
! 559: more successes in solving the problem, and thus this problem is very poor in
! 560: discriminating the upper and lower students.</p>
! 561: <p><span style='font-size:11.0pt'>In lonstatistics.pm we compute the Discrimination
! 562: Factor from two criteria:</span></p>
! 563: <p><span style='font-size:11.0pt'><i>1st Criterion </i></span><span style='font-size:11.0pt'>for
! 564: Sorting the Students: <img width=138 height=41
! 565: src="Session%20Tw2_files/image081.png" v:shapes="_x0000_i1051"> </span></p>
! 566: <p><span style='font-size:11.0pt'><i>2nd Criterion</i></span><span style='font-size:11.0pt'>
! 567: for Sorting the Students: <img width=87 height=41
! 568: src="Session%20Tw2_files/image084.png" v:shapes="_x0000_i1052"> </span></p>
! 569: <p> <span style='font-size:11.0pt;
! 570: font-family:Symbol;layout-grid-mode:line'>á<span style='font:7.0pt "Times New Roman"'>
! 571: </span></span> <span style='font-size:11.0pt;layout-grid-mode:line'><b>Change
! 572: the stats table sorting </b></span></p>
! 573: <p><span style='font-size:11.0pt;layout-grid-mode:line'>As you see in Fig. 3.2.
! 574: 2, all headers in the stats table are buttons that change the order of the table.
! 575: Users can change increasingly or decreasingly every column of the table. First
! 576: the user select the Ò<i>ascending</i></span><span
! 577: style='font-size:11.0pt;layout-grid-mode:line'>Ó or Ò<i>descending</i></span><span
! 578: style='font-size:11.0pt;layout-grid-mode:line'>Ó option, then he/she can change
! 579: the order of the table with clicking the header of his/her interested header.
! 580: If the user changes the order the table, all information is shown in one table,
! 581: each row corresponds to a particular problem. If the user selects the first
! 582: column, Òhomework set orderÓ, the information is shown in different tables,
! 583: each table corresponds to a particular homework set. </span></p>
! 584: <p> <span style='font-size:11.0pt;
! 585: font-family:Symbol;layout-grid-mode:line'>á<span style='font:7.0pt "Times New Roman"'>
! 586: </span></span> <span style='font-size:11.0pt;layout-grid-mode:line'><b>Graphical
! 587: chart </b></span></p>
! 588: <p><span style='font-size:11.0pt;layout-grid-mode:line'>Two important features
! 589: in this page might be seen through the graphical charts. That is, a user could
! 590: see the content of Ò%wrongÓ column and Òdegree of difficulty of problemsÓ in
! 591: the graphical chart as is shown in Fig. 3.2. 3 and 4 for homework set 1 in course
! 592: PHY183 SS02. These graphical charts are produced dynamically by calling a CGI
! 593: scripts, (graph.gif) which is located in /home/httpd/cgi-bin/</span></p>
! 594: <p> <img width=231 height=173
! 595: src="Session%20Tw2_files/image086.jpg" v:shapes="_x0000_i1053"> <span
! 596: style='layout-grid-mode:line'> <img width=230 height=170
! 597: src="Session%20Tw2_files/image088.jpg" v:shapes="_x0000_i1054"> </span></p>
! 598: <p><b>Fig. 3.2. 3</b><span
! 599: style='font-weight:normal'>: Degree of difficulty graph
! 600: </span><b>Fig. 3.2. 4</b><span style='font-weight:normal'>: %Wrong graph</span></p>
! 601: <h4 style='line-height:150%'><span style='font-size:12.0pt;font-family:Arial;
! 602: layout-grid-mode:line'> </span></h4>
! 603: <h3><a name="_Toc421867141"><span style='layout-grid-mode:line'>Problem Analysis</span></a></h3>
! 604: <p><span style='font-size:11.0pt'>Conceptual option response problems, in which
! 605: the students are given several concepts that are randomly assigned to each student,
! 606: are more difficult than numerical simple problems. Instructors usually
! 607: want to see the studentsÕ tries according to every particular concept separately.
! 608: ÒProblem AnalysisÓ button provides all response option problems in one table
! 609: as follows in the <b>Fig. 3.2.5.</b></span><span style='font-size:11.0pt'> </span></p>
! 610: <div style='border:solid windowtext .5pt;padding:1.0pt 0in 1.0pt 4.0pt'>
! 611: <p style='border:none;padding:0in;'><span style='font-size:11.0pt'>Total number
! 612: of students: 263</span></p>
! 613: <p style='border:none;padding:0in;'><b>Select number of intervals</b><span style='font-weight:normal'>
! 614: <img width=53 height=18
! 615: src="Session%20Tw2_files/image091.png" v:shapes="_x0000_i1055"> </span></p>
! 616: <p style='border:none;padding:0in;'><b>Option Response Problems</b><span
! 617: style='font-weight:normal'> </span><b>in course PHY183 SS02:</b></p>
! 618: </div>
! 619: <table border=1 cellspacing=0 cellpadding=0>
! 620: <tr>
! 621: <td width=15 class="Normal"> <p align=center style='text-align:center'><b>#
! 622: </b></p></td>
! 623: <td width=83 class="Normal"> <p align=center style='text-align:center'><b>Problem
! 624: Title </b></p></td>
! 625: <td width=298 class="Normal"> <p align=center style='text-align:center'><b>Resource
! 626: </b></p></td>
! 627: <td width=77 class="Normal"> <p align=center style='text-align:center'><b>Address
! 628: </b></p></td>
! 629: </tr>
! 630: <tr>
! 631: <td width=15 class="Normal"> <p>1 </p></td>
! 632: <td width=83 bgcolor="white" class="Normal"> <p><span style='"HYPERLINK \0022http\:\/\/deepthought\.lite\.msu\.edu\/res\/msu\/physicslib\/msuphysicslib\/01_Math_1\/msu-prob10\.problem\0022 \\t \0022_blank\0022"'><span
! 633: class=MsoHyperlink><span style='color:blue'>Numbers</span></span></span> </p></td>
! 634: <td width=298 bgcolor="white" class="Normal"> <p>/res/msu/physicslib/msuphysicslib/01_Math_1/msu-prob10.problem
! 635: </p></td>
! 636: <td width=77 class="Normal"> <p> <img width=72 height=23
! 637: src="Session%20Tw2_files/image094.png" v:shapes="_x0000_i1056"> </p></td>
! 638: </tr>
! 639: <tr>
! 640: <td width=15 class="Normal"> <p>2 </p></td>
! 641: <td width=83 bgcolor="white" class="Normal"> <p><span style='"HYPERLINK \0022http\:\/\/deepthought\.lite\.msu\.edu\/res\/msu\/physicslib\/msuphysicslib\/03_Units_Scaling\/msu-prob22\.problem\0022 \\t \0022_blank\0022"'><span
! 642: class=MsoHyperlink><span style='color:blue'>Speed</span></span></span> </p></td>
! 643: <td width=298 bgcolor="white" class="Normal"> <p>/res/msu/physicslib/msuphysicslib/03_Units_Scaling/msu-prob22.problem
! 644: </p></td>
! 645: <td width=77 class="Normal"> <p> <img width=72 height=23
! 646: src="Session%20Tw2_files/image097.png" v:shapes="_x0000_i1057"> </p></td>
! 647: </tr>
! 648: <tr>
! 649: <td width=15 class="Normal"> <p>3 </p></td>
! 650: <td width=83 bgcolor="white" class="Normal"> <p><span style='"HYPERLINK \0022http\:\/\/deepthought\.lite\.msu\.edu\/res\/msu\/physicslib\/msuphysicslib\/03_Units_Scaling\/msu-prob17\.problem\0022 \\t \0022_blank\0022"'><span
! 651: class=MsoHyperlink><span style='color:blue'>Units</span></span></span> </p></td>
! 652: <td width=298 bgcolor="white" class="Normal"> <p>/res/msu/physicslib/msuphysicslib/03_Units_Scaling/msu-prob17.problem
! 653: </p></td>
! 654: <td width=77 class="Normal"> <p> <img width=72 height=23
! 655: src="Session%20Tw2_files/image100.png" v:shapes="_x0000_i1058"> </p></td>
! 656: </tr>
! 657: <tr>
! 658: <td width=15 class="Normal"> <p>4 </p></td>
! 659: <td width=83 bgcolor="white" class="Normal"> <p><span style='"HYPERLINK \0022http\:\/\/deepthought\.lite\.msu\.edu\/res\/msu\/physicslib\/msuphysicslib\/06_Vectors_Scalars\/msu-prob07\.problem\0022 \\t \0022_blank\0022"'><span
! 660: class=MsoHyperlink><span style='color:blue'>Vector versus Scalar</span></span></span>
! 661: </p></td>
! 662: <td width=298 bgcolor="white" class="Normal"> <p>/res/msu/physicslib/msuphysicslib/06_Vectors_Scalars/msu-prob07.problem
! 663: </p></td>
! 664: <td width=77 class="Normal"> <p> <img width=72 height=23
! 665: src="Session%20Tw2_files/image103.png" v:shapes="_x0000_i1059"> </p></td>
! 666: </tr>
! 667: <tr>
! 668: <td width=15 class="Normal"> <p>5 </p></td>
! 669: <td width=83 bgcolor="white" class="Normal"> <p><span style='"HYPERLINK \0022http\:\/\/deepthought\.lite\.msu\.edu\/res\/msu\/physicslib\/msuphysicslib\/06_Vectors_Scalars\/msu-prob10\.problem\0022 \\t \0022_blank\0022"'><span
! 670: class=MsoHyperlink><span style='color:blue'>Adding Vectors</span></span></span>
! 671: </p></td>
! 672: <td width=298 bgcolor="white" class="Normal"> <p>/res/msu/physicslib/msuphysicslib/06_Vectors_Scalars/msu-prob10.problem
! 673: </p></td>
! 674: <td width=77 class="Normal"> <p> <img width=72 height=23
! 675: src="Session%20Tw2_files/image106.png" v:shapes="_x0000_i1060"> </p></td>
! 676: </tr>
! 677: <tr>
! 678: <td width=15 class="Normal"> <p>6 </p></td>
! 679: <td width=83 bgcolor="white" class="Normal"> <p><span style='"HYPERLINK \0022http\:\/\/deepthought\.lite\.msu\.edu\/res\/msu\/physicslib\/msuphysicslib\/05_1D_Motion\/msu-prob16\.problem\0022 \\t \0022_blank\0022"'><span
! 680: class=MsoHyperlink><span style='color:blue'>Traveling Car</span></span></span>
! 681: </p></td>
! 682: <td width=298 bgcolor="white" class="Normal"> <p>/res/msu/physicslib/msuphysicslib/05_1D_Motion/msu-prob16.problem
! 683: </p></td>
! 684: <td width=77 class="Normal"> <p> <img width=59 height=23
! 685: src="Session%20Tw2_files/image109.png" v:shapes="_x0000_i1061"> </p></td>
! 686: </tr>
! 687: <tr>
! 688: <td width=15 class="Normal"> <p>7 </p></td>
! 689: <td width=83 bgcolor="white" class="Normal"> <p><span style='"HYPERLINK \0022http\:\/\/deepthought\.lite\.msu\.edu\/res\/msu\/kashy\/Testing\/randomlabel\/atwood3T2M\.problem\0022 \\t \0022_blank\0022"'><span
! 690: class=MsoHyperlink><span style='color:blue'>Atwood Machine</span></span></span>
! 691: </p></td>
! 692: <td width=298 bgcolor="white" class="Normal"> <p>/res/msu/kashy/Testing/randomlabel/atwood3T2M.problem
! 693: </p></td>
! 694: <td width=77 class="Normal"> <p> <img width=63 height=23
! 695: src="Session%20Tw2_files/image112.png" v:shapes="_x0000_i1062"> </p></td>
! 696: </tr>
! 697: <tr>
! 698: <td width=15 class="Normal"> <p>8 </p></td>
! 699: <td width=83 bgcolor="white" class="Normal"> <p><span style='"HYPERLINK \0022http\:\/\/deepthought\.lite\.msu\.edu\/res\/msu\/physicslib\/msuphysicslib\/10_Motion_W_Friction\/msu-prob32\.problem\0022 \\t \0022_blank\0022"'><span
! 700: class=MsoHyperlink><span style='color:blue'>Sliding mass concepts</span></span></span>
! 701: </p></td>
! 702: <td width=298 bgcolor="white" class="Normal"> <p>/res/msu/physicslib/msuphysicslib/10_Motion_W_Friction/msu-prob32.problem
! 703: </p></td>
! 704: <td width=77 class="Normal"> <p> <img width=59 height=23
! 705: src="Session%20Tw2_files/image115.png" v:shapes="_x0000_i1063"> </p></td>
! 706: </tr>
! 707: <tr>
! 708: <td width=15 class="Normal"> <p>9 </p></td>
! 709: <td width=83 bgcolor="white" class="Normal"> <p><span style='"HYPERLINK \0022http\:\/\/deepthought\.lite\.msu\.edu\/res\/msu\/physicslib\/msuphysicslib\/12_Work_Power_Energy\/msu-prob27\.problem\0022 \\t \0022_blank\0022"'><span
! 710: class=MsoHyperlink><span style='color:blue'>Work, Power, Energy Concepts</span></span></span>
! 711: </p></td>
! 712: <td width=298 bgcolor="white" class="Normal"> <p>/res/msu/physicslib/msuphysicslib/12_Work_Power_Energy/msu-prob27.problem
! 713: </p></td>
! 714: <td width=77 class="Normal"> <p> <img width=68 height=23
! 715: src="Session%20Tw2_files/image118.png" v:shapes="_x0000_i1064"> </p></td>
! 716: </tr>
! 717: <tr>
! 718: <td width=15 class="Normal"> <p>10 </p></td>
! 719: <td width=83 bgcolor="white" class="Normal"> <p><span style='"HYPERLINK \0022http\:\/\/deepthought\.lite\.msu\.edu\/res\/msu\/physicslib\/msuphysicslib\/13_EnergyConservation\/msu-prob32\.problem\0022 \\t \0022_blank\0022"'><span
! 720: class=MsoHyperlink><span style='color:blue'>Bead on a Wire</span></span></span>
! 721: </p></td>
! 722: <td width=298 bgcolor="white" class="Normal"> <p>/res/msu/physicslib/msuphysicslib/13_EnergyConservation/msu-prob32.problem
! 723: </p></td>
! 724: <td width=77 class="Normal"> <p> <img width=63 height=23
! 725: src="Session%20Tw2_files/image121.png" v:shapes="_x0000_i1065"> </p></td>
! 726: </tr>
! 727: <tr>
! 728: <td width=15 class="Normal"> <p>11 </p></td>
! 729: <td width=83 bgcolor="white" class="Normal"> <p><span style='"HYPERLINK \0022http\:\/\/deepthought\.lite\.msu\.edu\/res\/msu\/physicslib\/msuphysicslib\/20_Rot2_E_Trq_Accel\/msu-prob23\.problem\0022 \\t \0022_blank\0022"'><span
! 730: class=MsoHyperlink><span style='color:blue'>Atwood Machine</span></span></span>
! 731: </p></td>
! 732: <td width=298 bgcolor="white" class="Normal"> <p>/res/msu/physicslib/msuphysicslib/20_Rot2_E_Trq_Accel/msu-prob23.problem
! 733: </p></td>
! 734: <td width=77 class="Normal"> <p> <img width=63 height=23
! 735: src="Session%20Tw2_files/image124.png" v:shapes="_x0000_i1066"> </p></td>
! 736: </tr>
! 737: <tr>
! 738: <td width=15 class="Normal"> <p>12 </p></td>
! 739: <td width=83 bgcolor="white" class="Normal"> <p><span style='"HYPERLINK \0022http\:\/\/deepthought\.lite\.msu\.edu\/res\/msu\/physicslib\/msuphysicslib\/21_Rot3_AngMom_Roll\/msu-prob38\.problem\0022 \\t \0022_blank\0022"'><span
! 740: class=MsoHyperlink><span style='color:blue'>Flinstone Bowling</span></span></span>
! 741: </p></td>
! 742: <td width=298 bgcolor="white" class="Normal"> <p>/res/msu/physicslib/msuphysicslib/21_Rot3_AngMom_Roll/msu-prob38.problem
! 743: </p></td>
! 744: <td width=77 class="Normal"> <p> <img width=63 height=23
! 745: src="Session%20Tw2_files/image127.png" v:shapes="_x0000_i1067"> </p></td>
! 746: </tr>
! 747: <tr>
! 748: <td width=15 class="Normal"> <p>13 </p></td>
! 749: <td width=83 bgcolor="white" class="Normal"> <p><span style='"HYPERLINK \0022http\:\/\/deepthought\.lite\.msu\.edu\/res\/msu\/physicslib\/msuphysicslib\/32_Fluids1_Pascal_Arch\/msu-prob12\.problem\0022 \\t \0022_blank\0022"'><span
! 750: class=MsoHyperlink><span style='color:blue'>Boat on Pond</span></span></span>
! 751: </p></td>
! 752: <td width=298 bgcolor="white" class="Normal"> <p>/res/msu/physicslib/msuphysicslib/32_Fluids1_Pascal_Arch/msu-prob12.problem
! 753: </p></td>
! 754: <td width=77 class="Normal"> <p> <img width=68 height=23
! 755: src="Session%20Tw2_files/image130.png" v:shapes="_x0000_i1068"> </p></td>
! 756: </tr>
! 757: <tr>
! 758: <td width=15 class="Normal"> </td>
! 759: <td width=83 bgcolor="white" class="Normal"> <p align=center style='text-align:center'>É</p></td>
! 760: <td width=298 bgcolor="white" class="Normal"> <p align=center style='text-align:center'>É</p></td>
! 761: <td width=77 class="Normal"> <p align=center style='text-align:center'>É</p></td>
! 762: </tr>
! 763: </table>
! 764: <p><span style='font-size:11.0pt'><b>Fig. 3.2.5</b></span><span
! 765: style='font-size:11.0pt'>: Option response problems in course PHY183 SS02</span></p>
! 766: <p><b>Fig. 3.2.5</b><span style='font-weight:normal'> includes a table, which
! 767: shows the title of every option response problem in the first column. This title
! 768: has a link to the original html page of the problem. In the second column
! 769: the source address of the problem is shown. Third column of this table includes
! 770: a button to analyze the studentsÕ data on this particular option response problem.
! 771: When this button is clicked, all data about this problem is <i>restored</i></span>,
! 772: for every student. Different versions of studentsÕ submissions are evaluated.
! 773: The results are presented in a graphical chart as well as a numerical table.
! 774: For example, if we select the analysis of <b>/res/msu/kashy/Testing/randomlabel/atwood3T2M.problem</b></p>
! 775: <p> <span style='position:
! 776: relative;z-index:0'><span style='position:absolute;left:-37px;top:-32px;
! 777: width:248px;height:174px'> <table cellpadding=0 cellspacing=0> <tr> <td width=249 height=174 align=left valign=top bgcolor=white class="Normal"
! 778: style='border:.75pt solid black;vertical-align:top;background:white'><span
! 779: style='position:absolute;z-index:1'>
! 780: <table cellpadding=0 cellspacing=0 width="100%">
! 781: <tr>
! 782: <td class="Normal"> <div v:shape="_x0000_s1026" style='padding:3.6pt 7.2pt 3.6pt 7.2pt'
! 783: class=shape>
! 784: <p class=FirstParagraph><span lang=PT-BR
! 785: style='font-size:9.0pt'>A frictionless, massless pulley is attached to the
! 786: ceiling, in a gravity field g. Mass Ma is greater than mass Mb. The
! 787: tensions Tx,Ty, Tz, and the constant g are magnitudes. (For each,
! 788: select: Greater than, Less than, Equal to, True, or False) </span></p>
! 789: <p class=FirstParagraph><span lang=PT-BR style='font-size:9.0pt'> <img width=96 height=114
! 790: src="Session%20Tw2_files/image132.jpg" v:shapes="_x0000_i1069"> <img width=125 height=120
! 791: src="Session%20Tw2_files/image135.png" v:shapes="_x0000_i1070"> </span></p>
! 792: </div></td>
! 793: </tr>
! 794: </table>
! 795: </span></td></tr> </table>
! 796: <p></p>
! 797: <br clear=all>
! 798: <p align=right style='text-align:right'> <span style='position:
! 799: absolute;z-index:1;left:0px;margin-left:229px;margin-top:97px;width:235px;
! 800: height:40px'> <table cellpadding=0 cellspacing=0> <tr> <td width=236 height=40 align=left valign=top bgcolor=white class="Normal" style='border:
! 801: .75pt solid white;vertical-align:top;background:white'><span
! 802: style='position:absolute;left:0pt;z-index:3'>
! 803: <table cellpadding=0 cellspacing=0 width="100%">
! 804: <tr>
! 805: <td class="Normal"> <div v:shape="_x0000_s1028" style='padding:3.6pt 7.2pt 3.6pt 7.2pt'
! 806: class=shape>
! 807: <p><span style='font-size:9.0pt'><b>Fig. 3.2.7</b></span><span
! 808: style='font-size:9.0pt'>: Graphical chart of student tries for </span></p>
! 809: <p><span style='font-size:9.0pt'>
! 810: Atwood Machine Problem
! 811: according </span></p>
! 812: <p><span style='font-size:9.0pt'>
! 813: to every concept in 1 interval time.</span></p>
! 814: </div></td>
! 815: </tr>
! 816: </table>
! 817: </span></td></tr> </table> <img width=203 height=150
! 818: src="Session%20Tw2_files/image137.png" v:shapes="_x0000_i1071">
! 819: <p></p>
! 820: <p><span style='font-size:9.0pt'><b>Fig. 3.2.6</b></span><span
! 821: style='font-size:9.0pt'>: Atwood Machine option response problem in HW3<b> </b></span></p>
! 822: <p><span style='font-size:11.0pt'>In addition, the data of studentsÕ tries
! 823: are shown in a table as you see in <b>Fig. 3.2.8</b></span><span
! 824: style='font-size:11.0pt'>. In the last row of the table you can see the time interval
! 825: of this data and the overall correct and wrong answers separately. If an
! 826: instructor wants to see the studentsÕ tries in different time intervals,
! 827: he/she could set the number of intervals from 1 to 7 time intervals, and
! 828: then recompute the analysis. </span></p>
! 829: <table border=1 cellspacing=0 cellpadding=0>
! 830: <tr>
! 831: <td width=10 class="Normal"> <p align=center style='text-align:center'><b>#
! 832: </b></p></td>
! 833: <td width=357 class="Normal"> <p align=center style='text-align:center'><b>Concept
! 834: </b></p></td>
! 835: <td width=38 class="Normal"> <p align=center style='text-align:center'><b>Correct
! 836: </b></p></td>
! 837: <td width=35 class="Normal"> <p align=center style='text-align:center'><b>Wrong
! 838: </b></p></td>
! 839: </tr>
! 840: <tr>
! 841: <td width=10 class="Normal"> <p>1</p></td>
! 842: <td width=357 bgcolor="white" class="Normal"> <p>Two masses have same
! 843: acceleration if the two the string does not stretch. </p></td>
! 844: <td width=38 bgcolor="white" class="Normal"> <p>1342 </p></td>
! 845: <td width=35 bgcolor="white" class="Normal"> <p>433 </p></td>
! 846: </tr>
! 847: <tr>
! 848: <td width=10 class="Normal"> <p>2</p></td>
! 849: <td width=357 bgcolor="white" class="Normal"> <p>Weight of the two masses
! 850: is greater than the tension of the string attached to the ceiling.
! 851: </p></td>
! 852: <td width=38 bgcolor="white" class="Normal"> <p>585 </p></td>
! 853: <td width=35 bgcolor="white" class="Normal"> <p>1190 </p></td>
! 854: </tr>
! 855: <tr>
! 856: <td width=10 class="Normal"> <p>3</p></td>
! 857: <td width=357 bgcolor="white" class="Normal"> <p>The top tension is equals
! 858: the two bottom tensions. (massless pulley) </p></td>
! 859: <td width=38 bgcolor="white" class="Normal"> <p>1263 </p></td>
! 860: <td width=35 bgcolor="white" class="Normal"> <p>512 </p></td>
! 861: </tr>
! 862: <tr>
! 863: <td width=10 class="Normal"> <p>4</p></td>
! 864: <td width=357 bgcolor="white" class="Normal"> <p>Tension holding the two
! 865: masses are equal if mass of pulley=0 </p></td>
! 866: <td width=38 bgcolor="white" class="Normal"> <p>1087 </p></td>
! 867: <td width=35 bgcolor="white" class="Normal"> <p>688 </p></td>
! 868: </tr>
! 869: <tr>
! 870: <td width=10 class="Normal"> <p>5</p></td>
! 871: <td width=357 bgcolor="white" class="Normal"> <p>Sub-System accelerates
! 872: upwards or downwards accordingly </p></td>
! 873: <td width=38 bgcolor="white" class="Normal"> <p>757 </p></td>
! 874: <td width=35 bgcolor="white" class="Normal"> <p>1018 </p></td>
! 875: </tr>
! 876: <tr>
! 877: <td width=10 class="Normal"> <p>6</p></td>
! 878: <td width=357 bgcolor="white" class="Normal"> <p>Center of mass accelerates
! 879: downward </p></td>
! 880: <td width=38 bgcolor="white" class="Normal"> <p>1354 </p></td>
! 881: <td width=35 bgcolor="white" class="Normal"> <p>421 </p></td>
! 882: </tr>
! 883: <tr>
! 884: <td width=10 class="Normal"> </td>
! 885: <td width=357 class="Normal"> <p><b>From:[Thu Jan 24 00:46:22 2002] To:
! 886: [Mon Feb 4 23:59:59 2002]</b></p></td>
! 887: <td width=38 class="Normal"> <p>6388</p></td>
! 888: <td width=35 class="Normal"> <p>4245</p></td>
! 889: </tr>
! 890: </table>
! 891: <p><span style='font-size:11.0pt'><b>Fig. 3.2.8</b></span><span
! 892: style='font-size:11.0pt'>: Table of student tries for Atwood Machine Problem according
! 893: to every concept in one time interval.</span></p>
! 894: <p> <span
! 895: style='position:relative;z-index:2'><span style='position:
! 896: absolute;left:-109px;top:-166px;width:341px;height:24px'> <img width=341
! 897: height=24 src="Session%20Tw2_files/image138.png" v:shapes="_x0000_s1027"> <img width=203 height=150
! 898: src="Session%20Tw2_files/image140.png" v:shapes="_x0000_i1072"> <img width=203 height=150
! 899: src="Session%20Tw2_files/image142.png" v:shapes="_x0000_i1073">
! 900: <p></p>
! 901: <table border=1 cellspacing=0 cellpadding=0>
! 902: <tr>
! 903: <td width=10 class="Normal"> <p align=center style='text-align:center'><b>#
! 904: </b></p></td>
! 905: <td width=357 class="Normal"> <p align=center style='text-align:center'><b>Concept
! 906: </b></p></td>
! 907: <td width=38 class="Normal"> <p align=center style='text-align:center'><b>Correct
! 908: </b></p></td>
! 909: <td width=35 class="Normal"> <p align=center style='text-align:center'><b>Wrong
! 910: </b></p></td>
! 911: </tr>
! 912: <tr>
! 913: <td width=10 class="Normal"> <p>1</p></td>
! 914: <td width=357 bgcolor="white" class="Normal"> <p>Two masses have same
! 915: acceleration if the two the string does not stretch. </p></td>
! 916: <td width=38 bgcolor="white" class="Normal"> <p>124 </p></td>
! 917: <td width=35 bgcolor="white" class="Normal"> <p>98 </p></td>
! 918: </tr>
! 919: <tr>
! 920: <td width=10 class="Normal"> <p>2</p></td>
! 921: <td width=357 bgcolor="white" class="Normal"> <p>Weight of the two masses
! 922: is greater than the tension of the string attached to the ceiling.
! 923: </p></td>
! 924: <td width=38 bgcolor="white" class="Normal"> <p>44 </p></td>
! 925: <td width=35 bgcolor="white" class="Normal"> <p>178 </p></td>
! 926: </tr>
! 927: <tr>
! 928: <td width=10 class="Normal"> <p>3</p></td>
! 929: <td width=357 bgcolor="white" class="Normal"> <p>The top tension is
! 930: equals the two bottom tensions. (massless pulley) </p></td>
! 931: <td width=38 bgcolor="white" class="Normal"> <p>142 </p></td>
! 932: <td width=35 bgcolor="white" class="Normal"> <p>80 </p></td>
! 933: </tr>
! 934: <tr>
! 935: <td width=10 class="Normal"> <p>4</p></td>
! 936: <td width=357 bgcolor="white" class="Normal"> <p>Tension holding the
! 937: two masses are equal if mass of pulley=0 </p></td>
! 938: <td width=38 bgcolor="white" class="Normal"> <p>125 </p></td>
! 939: <td width=35 bgcolor="white" class="Normal"> <p>97 </p></td>
! 940: </tr>
! 941: <tr>
! 942: <td width=10 class="Normal"> <p>5</p></td>
! 943: <td width=357 bgcolor="white" class="Normal"> <p>Sub-System accelerates
! 944: upwards or downwards accordingly </p></td>
! 945: <td width=38 bgcolor="white" class="Normal"> <p>64 </p></td>
! 946: <td width=35 bgcolor="white" class="Normal"> <p>158 </p></td>
! 947: </tr>
! 948: <tr>
! 949: <td width=10 class="Normal"> <p>6</p></td>
! 950: <td width=357 bgcolor="white" class="Normal"> <p>Center of mass accelerates
! 951: downward </p></td>
! 952: <td width=38 bgcolor="white" class="Normal"> <p>151 </p></td>
! 953: <td width=35 bgcolor="white" class="Normal"> <p>71 </p></td>
! 954: </tr>
! 955: <tr>
! 956: <td width=10 class="Normal"> </td>
! 957: <td width=357 class="Normal"> <p><b>From:[Thu Jan 24 00:46:22 2002]
! 958: To: [Wed Jan 30 00:23:10 2002]</b></p></td>
! 959: <td width=38 class="Normal"> <p>650</p></td>
! 960: <td width=35 class="Normal"> <p>682</p></td>
! 961: </tr>
! 962: </table>
! 963: <table border=1 cellspacing=0 cellpadding=0>
! 964: <tr>
! 965: <td width=10 class="Normal"> <p align=center style='text-align:center'><b>#
! 966: </b></p></td>
! 967: <td width=357 class="Normal"> <p align=center style='text-align:center'><b>Concept
! 968: </b></p></td>
! 969: <td width=38 class="Normal"> <p align=center style='text-align:center'><b>Correct
! 970: </b></p></td>
! 971: <td width=35 class="Normal"> <p align=center style='text-align:center'><b>Wrong
! 972: </b></p></td>
! 973: </tr>
! 974: <tr>
! 975: <td width=10 class="Normal"> <p>1</p></td>
! 976: <td width=357 bgcolor="white" class="Normal"> <p>Two masses have same
! 977: acceleration if the two the string does not stretch. </p></td>
! 978: <td width=38 bgcolor="white" class="Normal"> <p>1218 </p></td>
! 979: <td width=35 bgcolor="white" class="Normal"> <p>335 </p></td>
! 980: </tr>
! 981: <tr>
! 982: <td width=10 class="Normal"> <p>2</p></td>
! 983: <td width=357 bgcolor="white" class="Normal"> <p>Weight of the two masses
! 984: is greater than the tension of the string attached to the ceiling.
! 985: </p></td>
! 986: <td width=38 bgcolor="white" class="Normal"> <p>541 </p></td>
! 987: <td width=35 bgcolor="white" class="Normal"> <p>1012 </p></td>
! 988: </tr>
! 989: <tr>
! 990: <td width=10 class="Normal"> <p>3</p></td>
! 991: <td width=357 bgcolor="white" class="Normal"> <p>The top tension is
! 992: equals the two bottom tensions. (massless pulley) </p></td>
! 993: <td width=38 bgcolor="white" class="Normal"> <p>1121 </p></td>
! 994: <td width=35 bgcolor="white" class="Normal"> <p>432 </p></td>
! 995: </tr>
! 996: <tr>
! 997: <td width=10 class="Normal"> <p>4</p></td>
! 998: <td width=357 bgcolor="white" class="Normal"> <p>Tension holding the
! 999: two masses are equal if mass of pulley=0 </p></td>
! 1000: <td width=38 bgcolor="white" class="Normal"> <p>962 </p></td>
! 1001: <td width=35 bgcolor="white" class="Normal"> <p>591 </p></td>
! 1002: </tr>
! 1003: <tr>
! 1004: <td width=10 class="Normal"> <p>5</p></td>
! 1005: <td width=357 bgcolor="white" class="Normal"> <p>Sub-System accelerates
! 1006: upwards or downwards accordingly </p></td>
! 1007: <td width=38 bgcolor="white" class="Normal"> <p>693 </p></td>
! 1008: <td width=35 bgcolor="white" class="Normal"> <p>860 </p></td>
! 1009: </tr>
! 1010: <tr>
! 1011: <td width=10 class="Normal"> <p>6</p></td>
! 1012: <td width=357 bgcolor="white" class="Normal"> <p>Center of mass accelerates
! 1013: downward </p></td>
! 1014: <td width=38 bgcolor="white" class="Normal"> <p>1203 </p></td>
! 1015: <td width=35 bgcolor="white" class="Normal"> <p>350 </p></td>
! 1016: </tr>
! 1017: <tr>
! 1018: <td width=10 class="Normal"> </td>
! 1019: <td width=357 class="Normal"> <p><b>From:[Wed Jan 30 00:23:11 2002]
! 1020: To: [Mon Feb 4 23:59:59 2002]</b></p></td>
! 1021: <td width=38 class="Normal"> <p>5738</p></td>
! 1022: <td width=35 class="Normal"> <p>3563</p></td>
! 1023: </tr>
! 1024: </table>
! 1025: <p><span style='font-size:11.0pt'><b>Fig. 3.2.9</b></span><span
! 1026: style='font-size:11.0pt'>: Table of student tries for Atwood Machine Problem according
! 1027: to every concept in 2 times interval.</span></p>
! 1028: <p>In <b>Fig. 3.2.9</b><span style='font-weight:normal'>, number of studentsÕ
! 1029: tries tables and the graphical chart are shown in 2 different time intervals.
! 1030: An instructor would be able to check whether the students have more wrong
! 1031: answers during the first days of opening the homework set, and how many
! 1032: students have tried during the first or the second interval. Since the
! 1033: problems are individualized he/she might be able to see how many students
! 1034: have tried to solve the problem after communicating with each other and
! 1035: understanding the concept. In Fig. 3.2. 10 the charts and tables
! 1036: of studentsÕ tries are shown in 3 time intervals. So if the homework should
! 1037: be done in one week, an instructor would be able to observe the distribution
! 1038: of studentsÕ tries every day separately after choosing the 7 time intervals.</span></p>
! 1039: <p> <img width=151 height=150
! 1040: src="Session%20Tw2_files/image144.png" v:shapes="_x0000_i1074"> <img width=151 height=150
! 1041: src="Session%20Tw2_files/image146.png" v:shapes="_x0000_i1075"> <img width=149 height=150
! 1042: src="Session%20Tw2_files/image148.png" v:shapes="_x0000_i1076"> </p>
! 1043: <table border=1 cellspacing=0 cellpadding=0>
! 1044: <tr>
! 1045: <td width=10 class="Normal"> <p align=center style='text-align:center'><b>#
! 1046: </b></p></td>
! 1047: <td width=357 class="Normal"> <p align=center style='text-align:center'><b>Concept
! 1048: </b></p></td>
! 1049: <td width=38 class="Normal"> <p align=center style='text-align:center'><b>Correct
! 1050: </b></p></td>
! 1051: <td width=35 class="Normal"> <p align=center style='text-align:center'><b>Wrong
! 1052: </b></p></td>
! 1053: </tr>
! 1054: <tr>
! 1055: <td width=10 class="Normal"> <p>1</p></td>
! 1056: <td width=357 bgcolor="white" class="Normal"> <p>Two masses have same
! 1057: acceleration if the two the string does not stretch. </p></td>
! 1058: <td width=38 bgcolor="white" class="Normal"> <p>31 </p></td>
! 1059: <td width=35 bgcolor="white" class="Normal"> <p>30 </p></td>
! 1060: </tr>
! 1061: <tr>
! 1062: <td width=10 class="Normal"> <p>2</p></td>
! 1063: <td width=357 bgcolor="white" class="Normal"> <p>Weight of the two masses
! 1064: is greater than the tension of the string attached to the ceiling.
! 1065: </p></td>
! 1066: <td width=38 bgcolor="white" class="Normal"> <p>8 </p></td>
! 1067: <td width=35 bgcolor="white" class="Normal"> <p>53 </p></td>
! 1068: </tr>
! 1069: <tr>
! 1070: <td width=10 class="Normal"> <p>3</p></td>
! 1071: <td width=357 bgcolor="white" class="Normal"> <p>The top tension is
! 1072: equals the two bottom tensions. (massless pulley) </p></td>
! 1073: <td width=38 bgcolor="white" class="Normal"> <p>44 </p></td>
! 1074: <td width=35 bgcolor="white" class="Normal"> <p>17 </p></td>
! 1075: </tr>
! 1076: <tr>
! 1077: <td width=10 class="Normal"> <p>4</p></td>
! 1078: <td width=357 bgcolor="white" class="Normal"> <p>Tension holding the
! 1079: two masses are equal if mass of pulley=0 </p></td>
! 1080: <td width=38 bgcolor="white" class="Normal"> <p>32 </p></td>
! 1081: <td width=35 bgcolor="white" class="Normal"> <p>29 </p></td>
! 1082: </tr>
! 1083: <tr>
! 1084: <td width=10 class="Normal"> <p>5</p></td>
! 1085: <td width=357 bgcolor="white" class="Normal"> <p>Sub-System accelerates
! 1086: upwards or downwards accordingly </p></td>
! 1087: <td width=38 bgcolor="white" class="Normal"> <p>20 </p></td>
! 1088: <td width=35 bgcolor="white" class="Normal"> <p>41 </p></td>
! 1089: </tr>
! 1090: <tr>
! 1091: <td width=10 class="Normal"> <p>6</p></td>
! 1092: <td width=357 bgcolor="white" class="Normal"> <p>Center of mass accelerates
! 1093: downward </p></td>
! 1094: <td width=38 bgcolor="white" class="Normal"> <p>42 </p></td>
! 1095: <td width=35 bgcolor="white" class="Normal"> <p>19 </p></td>
! 1096: </tr>
! 1097: <tr>
! 1098: <td width=10 class="Normal"> </td>
! 1099: <td width=357 class="Normal"> <p><b>From:[Thu Jan 24 00:46:22 2002]
! 1100: To: [Mon Jan 28 00:30:53 2002]</b></p></td>
! 1101: <td width=38 class="Normal"> <p>177</p></td>
! 1102: <td width=35 class="Normal"> <p>189</p></td>
! 1103: </tr>
! 1104: </table>
! 1105: <table border=1 cellspacing=0 cellpadding=0>
! 1106: <tr>
! 1107: <td width=10 class="Normal"> <p align=center style='text-align:center'><b>#
! 1108: </b></p></td>
! 1109: <td width=357 class="Normal"> <p align=center style='text-align:center'><b>Concept
! 1110: </b></p></td>
! 1111: <td width=38 class="Normal"> <p align=center style='text-align:center'><b>Correct
! 1112: </b></p></td>
! 1113: <td width=35 class="Normal"> <p align=center style='text-align:center'><b>Wrong
! 1114: </b></p></td>
! 1115: </tr>
! 1116: <tr>
! 1117: <td width=10 class="Normal"> <p>1</p></td>
! 1118: <td width=357 bgcolor="white" class="Normal"> <p>Two masses have same
! 1119: acceleration if the two the string does not stretch. </p></td>
! 1120: <td width=38 bgcolor="white" class="Normal"> <p>692 </p></td>
! 1121: <td width=35 bgcolor="white" class="Normal"> <p>257 </p></td>
! 1122: </tr>
! 1123: <tr>
! 1124: <td width=10 class="Normal"> <p>2</p></td>
! 1125: <td width=357 bgcolor="white" class="Normal"> <p>Weight of the two masses
! 1126: is greater than the tension of the string attached to the ceiling.
! 1127: </p></td>
! 1128: <td width=38 bgcolor="white" class="Normal"> <p>321 </p></td>
! 1129: <td width=35 bgcolor="white" class="Normal"> <p>628 </p></td>
! 1130: </tr>
! 1131: <tr>
! 1132: <td width=10 class="Normal"> <p>3</p></td>
! 1133: <td width=357 bgcolor="white" class="Normal"> <p>The top tension is
! 1134: equals the two bottom tensions. (massless pulley) </p></td>
! 1135: <td width=38 bgcolor="white" class="Normal"> <p>690 </p></td>
! 1136: <td width=35 bgcolor="white" class="Normal"> <p>259 </p></td>
! 1137: </tr>
! 1138: <tr>
! 1139: <td width=10 class="Normal"> <p>4</p></td>
! 1140: <td width=357 bgcolor="white" class="Normal"> <p>Tension holding the
! 1141: two masses are equal if mass of pulley=0 </p></td>
! 1142: <td width=38 bgcolor="white" class="Normal"> <p>590 </p></td>
! 1143: <td width=35 bgcolor="white" class="Normal"> <p>359 </p></td>
! 1144: </tr>
! 1145: <tr>
! 1146: <td width=10 class="Normal"> <p>5</p></td>
! 1147: <td width=357 bgcolor="white" class="Normal"> <p>Sub-System accelerates
! 1148: upwards or downwards accordingly </p></td>
! 1149: <td width=38 bgcolor="white" class="Normal"> <p>399 </p></td>
! 1150: <td width=35 bgcolor="white" class="Normal"> <p>550 </p></td>
! 1151: </tr>
! 1152: <tr>
! 1153: <td width=10 class="Normal"> <p>6</p></td>
! 1154: <td width=357 bgcolor="white" class="Normal"> <p>Center of mass accelerates
! 1155: downward </p></td>
! 1156: <td width=38 bgcolor="white" class="Normal"> <p>703 </p></td>
! 1157: <td width=35 bgcolor="white" class="Normal"> <p>246 </p></td>
! 1158: </tr>
! 1159: <tr>
! 1160: <td width=10 class="Normal"> </td>
! 1161: <td width=357 class="Normal"> <p><b>From:[Mon Jan 28 00:30:54 2002]
! 1162: To: [Fri Feb 1 00:15:25 2002]</b></p></td>
! 1163: <td width=38 class="Normal"> <p>3395</p></td>
! 1164: <td width=35 class="Normal"> <p>2281</p></td>
! 1165: </tr>
! 1166: </table>
! 1167: <table border=1 cellspacing=0 cellpadding=0>
! 1168: <tr>
! 1169: <td width=10 class="Normal"> <p align=center style='text-align:center'><b>#
! 1170: </b></p></td>
! 1171: <td width=357 class="Normal"> <p align=center style='text-align:center'><b>Concept
! 1172: </b></p></td>
! 1173: <td width=38 class="Normal"> <p align=center style='text-align:center'><b>Correct
! 1174: </b></p></td>
! 1175: <td width=35 class="Normal"> <p align=center style='text-align:center'><b>Wrong
! 1176: </b></p></td>
! 1177: </tr>
! 1178: <tr>
! 1179: <td width=10 class="Normal"> <p>1</p></td>
! 1180: <td width=357 bgcolor="white" class="Normal"> <p>Two masses have same
! 1181: acceleration if the two the string does not stretch. </p></td>
! 1182: <td width=38 bgcolor="white" class="Normal"> <p>619 </p></td>
! 1183: <td width=35 bgcolor="white" class="Normal"> <p>147 </p></td>
! 1184: </tr>
! 1185: <tr>
! 1186: <td width=10 class="Normal"> <p>2</p></td>
! 1187: <td width=357 bgcolor="white" class="Normal"> <p>Weight of the two masses
! 1188: is greater than the tension of the string attached to the ceiling.
! 1189: </p></td>
! 1190: <td width=38 bgcolor="white" class="Normal"> <p>256 </p></td>
! 1191: <td width=35 bgcolor="white" class="Normal"> <p>510 </p></td>
! 1192: </tr>
! 1193: <tr>
! 1194: <td width=10 class="Normal"> <p>3</p></td>
! 1195: <td width=357 bgcolor="white" class="Normal"> <p>The top tension is
! 1196: equals the two bottom tensions. (massless pulley) </p></td>
! 1197: <td width=38 bgcolor="white" class="Normal"> <p>529 </p></td>
! 1198: <td width=35 bgcolor="white" class="Normal"> <p>237 </p></td>
! 1199: </tr>
! 1200: <tr>
! 1201: <td width=10 class="Normal"> <p>4</p></td>
! 1202: <td width=357 bgcolor="white" class="Normal"> <p>Tension holding the
! 1203: two masses are equal if mass of pulley=0 </p></td>
! 1204: <td width=38 bgcolor="white" class="Normal"> <p>465 </p></td>
! 1205: <td width=35 bgcolor="white" class="Normal"> <p>301 </p></td>
! 1206: </tr>
! 1207: <tr>
! 1208: <td width=10 class="Normal"> <p>5</p></td>
! 1209: <td width=357 bgcolor="white" class="Normal"> <p>Sub-System accelerates
! 1210: upwards or downwards accordingly </p></td>
! 1211: <td width=38 bgcolor="white" class="Normal"> <p>338 </p></td>
! 1212: <td width=35 bgcolor="white" class="Normal"> <p>428 </p></td>
! 1213: </tr>
! 1214: <tr>
! 1215: <td width=10 class="Normal"> <p>6</p></td>
! 1216: <td width=357 bgcolor="white" class="Normal"> <p>Center of mass accelerates
! 1217: downward </p></td>
! 1218: <td width=38 bgcolor="white" class="Normal"> <p>609 </p></td>
! 1219: <td width=35 bgcolor="white" class="Normal"> <p>157 </p></td>
! 1220: </tr>
! 1221: <tr>
! 1222: <td width=10 class="Normal"> </td>
! 1223: <td width=357 class="Normal"> <p><b>From:[Fri Feb 1 00:15:26 2002] To:
! 1224: [Mon Feb 4 23:59:59 2002]</b></p></td>
! 1225: <td width=38 class="Normal"> <p>2816</p></td>
! 1226: <td width=35 class="Normal"> <p>1775</p></td>
! 1227: </tr>
! 1228: </table>
! 1229: <p><b>Fig. 3.2. 10</b><span style='font-weight:normal'>: Table of student
! 1230: tries for Atwood Machine Problem according to every concept in 3 times
! 1231: interval.</span></p>
! 1232: <h3><a name="_Toc421867142">Student Assessment</a></h3>
! 1233: <p class=MsoBodyText2><span style='font-size:11.0pt'>This option provides
! 1234: some reports about the current educational situation of every student
! 1235: as you see in <b>Fig. 3.2.11</b></span><span style='font-size:11.0pt'>.
! 1236: A ÔYÕ show that the student has solved the problem and ÔNÕ shows his/her
! 1237: failure. A Ô-Ô denotes a unattempted problem. The numbers in the
! 1238: right column show the total number of tries of the student in solving
! 1239: the corresponding problems.</span></p>
! 1240: <form>
! 1241: <div style='border:solid windowtext .5pt;padding:1.0pt 0in 1.0pt 4.0pt'>
! 1242: <p style='border:none;padding:0in;'>Total number of students : 263<br>
! 1243: <br>
! 1244: <img width=68 height=23
! 1245: src="Session%20Tw2_files/image151.png" v:shapes="_x0000_i1077"> <br>
! 1246: <b>Select Map </b><span style='font-weight:normal'>
! 1247: <img width=215 height=18
! 1248: src="Session%20Tw2_files/image154.png" v:shapes="_x0000_i1078"> <br>
! 1249: </span><b>Select Section</b><span style='font-weight:normal'> <img width=89 height=18
! 1250: src="Session%20Tw2_files/image157.png" v:shapes="_x0000_i1079"> <br>
! 1251: </span><b>Select Student</b><span style='font-weight:normal'> <img width=89 height=18
! 1252: src="Session%20Tw2_files/image160.png" v:shapes="_x0000_i1080"> <br>
! 1253: <br>
! 1254: </span></p>
! 1255: <p style='border:none;padding:0in;'> <img width=93 height=23
! 1256: src="Session%20Tw2_files/image163.png" v:shapes="_x0000_i1081"> </p>
! 1257: </div>
! 1258: <table border=1 cellspacing=0 cellpadding=0>
! 1259: <tr>
! 1260: <td width=21 class="Normal"> <p align=center style='text-align:center;line-height:150%'><b>#
! 1261: </b></p></td>
! 1262: <td width=177 class="Normal"> <p align=center style='text-align:center;line-height:150%'><b>Set
! 1263: Title </b></p></td>
! 1264: <td width=122 class="Normal"> <p align=center style='text-align:center;line-height:150%'><b>Results
! 1265: </b></p></td>
! 1266: <td width=153 class="Normal"> <p align=center style='text-align:center;line-height:150%'><b>Tries
! 1267: </b></p></td>
! 1268: </tr>
! 1269: <tr>
! 1270: <td width=21 class="Normal"> <p style='line-height:150%'>1 </p></td>
! 1271: <td width=177 class="Normal"> <p style='line-height:150%'>msu/mmp/phy183.sequence
! 1272: </p></td>
! 1273: <td width=122 class="Normal"> </td>
! 1274: <td width=153 class="Normal"> </td>
! 1275: </tr>
! 1276: <tr>
! 1277: <td width=21 class="Normal"> <p style='line-height:150%'>2 </p></td>
! 1278: <td width=177 class="Normal"> <p style='line-height:150%'>msu/mmp/kap1/calckap1.sequence
! 1279: </p></td>
! 1280: <td width=122 class="Normal"> <p style='line-height:150%'><span style='font-size:8.0pt'>YYYYYYYYYYYYY
! 1281: </span></p></td>
! 1282: <td width=153 class="Normal"> <p style='line-height:150%'>1,1,1,2,1,1,1,1,1,7,9,3,2</p></td>
! 1283: </tr>
! 1284: <tr>
! 1285: <td width=21 class="Normal"> <p style='line-height:150%'>3 </p></td>
! 1286: <td width=177 class="Normal"> <p style='line-height:150%'>msu/mmp/kap2/calckap2.sequence
! 1287: </p></td>
! 1288: <td width=122 class="Normal"> <p style='line-height:150%'><span style='font-size:8.0pt'>YYNYYYYNNYYYYYYYY
! 1289: </span></p></td>
! 1290: <td width=153 class="Normal"> <p style='line-height:150%'>10,1,0,1,1,2,1,4,5,1,1,1,3,2,1,1,1</p></td>
! 1291: </tr>
! 1292: <tr>
! 1293: <td width=21 class="Normal"> <p style='line-height:150%'>4 </p></td>
! 1294: <td width=177 class="Normal"> <p style='line-height:150%'>msu/mmp/kap3/calckap3.sequence
! 1295: </p></td>
! 1296: <td width=122 class="Normal"> <p style='line-height:150%'><span style='font-size:8.0pt'>YYYYYYYYNYYYYYYYYYY
! 1297: </span></p></td>
! 1298: <td width=153 class="Normal"> <p style='line-height:150%'>4,3,5,1,1,8,2,3,20,1,1,1,1,1,2,3,2,2,3</p></td>
! 1299: </tr>
! 1300: <tr>
! 1301: <td width=21 class="Normal"> <p style='line-height:150%'>5 </p></td>
! 1302: <td width=177 class="Normal"> <p style='line-height:150%'>msu/mmp/kap4/calckap4.sequence
! 1303: </p></td>
! 1304: <td width=122 class="Normal"> <p style='line-height:150%'><span style='font-size:8.0pt'>NYYYYYYYYYYYYYYY
! 1305: </span></p></td>
! 1306: <td width=153 class="Normal"> <p style='line-height:150%'>20,1,1,1,3,3,2,3,4,2,3,2,1,1,2,5</p></td>
! 1307: </tr>
! 1308: <tr>
! 1309: <td width=21 class="Normal"> <p style='line-height:150%'>6 </p></td>
! 1310: <td width=177 class="Normal"> <p style='line-height:150%'>msu/mmp/kap5/calckap5.sequence
! 1311: </p></td>
! 1312: <td width=122 class="Normal"> <p style='line-height:150%'><span style='font-size:8.0pt'>YYYYYYYYYYY-YY
! 1313: </span></p></td>
! 1314: <td width=153 class="Normal"> <p style='line-height:150%'>5,2,1,9,12,1,3,12,1,2,1,,1,3</p></td>
! 1315: </tr>
! 1316: <tr>
! 1317: <td width=21 class="Normal"> <p style='line-height:150%'>7 </p></td>
! 1318: <td width=177 class="Normal"> <p style='line-height:150%'>msu/mmp/kap6/calckap6.sequence
! 1319: </p></td>
! 1320: <td width=122 class="Normal"> <p style='line-height:150%'><span style='font-size:8.0pt'>YYYYYYYYYYYYYY
! 1321: </span></p></td>
! 1322: <td width=153 class="Normal"> <p style='line-height:150%'>3,2,4,2,1,1,2,1,1,9,2,3,2,2</p></td>
! 1323: </tr>
! 1324: <tr>
! 1325: <td width=21 class="Normal"> <p style='line-height:150%'>8 </p></td>
! 1326: <td width=177 class="Normal"> <p style='line-height:150%'>msu/mmp/kap7/calckap7.sequence
! 1327: </p></td>
! 1328: <td width=122 class="Normal"> <p style='line-height:150%'><span style='font-size:8.0pt'>YYYYYYYYYYYYYYYYYY
! 1329: </span></p></td>
! 1330: <td width=153 class="Normal"> <p style='line-height:150%'>4,1,3,1,10,4,1,1,2,1,1,2,1,2,1,3,1,3</p></td>
! 1331: </tr>
! 1332: <tr>
! 1333: <td width=21 class="Normal"> <p style='line-height:150%'>9 </p></td>
! 1334: <td width=177 class="Normal"> <p style='line-height:150%'>msu/mmp/kap8/calckap8.sequence
! 1335: </p></td>
! 1336: <td width=122 class="Normal"> <p style='line-height:150%'><span style='font-size:8.0pt'>YYYYYYYYYYYYYYY
! 1337: </span></p></td>
! 1338: <td width=153 class="Normal"> <p style='line-height:150%'>4,3,1,2,3,3,4,3,3,1,1,4,1,1,7</p></td>
! 1339: </tr>
! 1340: <tr>
! 1341: <td width=21 class="Normal"> <p style='line-height:150%'>10 </p></td>
! 1342: <td width=177 class="Normal"> <p style='line-height:150%'>msu/mmp/kap9/calckap9.sequence
! 1343: </p></td>
! 1344: <td width=122 class="Normal"> <p style='line-height:150%'><span style='font-size:8.0pt'>YYYYN-NYYNY
! 1345: </span></p></td>
! 1346: <td width=153 class="Normal"> <p style='line-height:150%'>1,1,1,2,1,,2,2,1,6,4</p></td>
! 1347: </tr>
! 1348: <tr>
! 1349: <td width=21 class="Normal"> <p style='line-height:150%'>11 </p></td>
! 1350: <td width=177 class="Normal"> <p style='line-height:150%'>msu/mmp/kap10/calckap10.sequence
! 1351: </p></td>
! 1352: <td width=122 class="Normal"> <p style='line-height:150%'><span style='font-size:8.0pt'>YYYYYYYYYYYY
! 1353: </span></p></td>
! 1354: <td width=153 class="Normal"> <p style='line-height:150%'>2,1,1,1,1,1,1,1,1,1,1,1</p></td>
! 1355: </tr>
! 1356: <tr>
! 1357: <td width=21 class="Normal"> <p style='line-height:150%'>12 </p></td>
! 1358: <td width=177 class="Normal"> <p style='line-height:150%'>msu/mmp/kap11/calckap11.sequence
! 1359: </p></td>
! 1360: <td width=122 class="Normal"> <p style='line-height:150%'>-----------------
! 1361: </p></td>
! 1362: <td width=153 class="Normal"> <p style='line-height:150%'>0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0</p></td>
! 1363: </tr>
! 1364: </table>
! 1365: <p><span style='layout-grid-mode:line'><b>Fig. 3.2. 5</b></span><span
! 1366: style='layout-grid-mode:line'>: A sample of a student homework results and tries</span></p>
! 1367: <p><span style='font-size:11.0pt;layout-grid-mode:line'>We plan to present
! 1368: several other reports in this page as well. Some student classification
! 1369: reports also would be depicted here.</span></p>
! 1370: <p><span style='font-size:11.0pt;layout-grid-mode:line'>In Òproblem statsÓ
! 1371: and Òstudent assessmentÓ pages, an instructor can limit the range of
! 1372: his/her information to a particular section or a particular homework
! 1373: set. So, an instructor would be able to load the statistics table
! 1374: or student tries in Òstudent assessmentÓ table to a particular map or
! 1375: section. </span><span style='font-size:11.0pt'>After changing the map
! 1376: or section, he/she would be able to see the results via the recalculating
! 1377: the computation on that page. </span><span style='font-size:11.0pt;
! 1378: font-family:Arial;layout-grid-mode:line'></span></p>
! 1379: <h3><a name="_Toc421867143"><span style='layout-grid-mode:line'>Future
! 1380: work, using activity.log to classify the students</span></a></h3>
! 1381: <p><span style='font-size:11.0pt'>The problem is whether we can find the
! 1382: good features for <i>classifying</i></span><span style='font-size:
! 1383: 11.0pt'> students? If so, we would be able to identify a <i>predictor</i></span><span
! 1384: style='font-size:11.0pt'> for any individual student after doing a couple of homework
! 1385: sets. With this information, we would be able to <i>help</i></span><span
! 1386: style='font-size:11.0pt'> a student use the resources better. <span style='layout-grid-mode:line'>As
! 1387: the first step of data mining stuff w</span>e want to make an initial
! 1388: effort to classify the students. </span></p>
! 1389: <p><span style='font-size:11.0pt'>Preprocessing and finding the useful
! 1390: student data and segmenting may be a difficult task. Internally, one
! 1391: part of this data is stored in a student directory:</span></p>
! 1392: <p><span style='font-size:11.0pt'> </span><span style='font-size:11.0pt;font-family:"Courier New"'>/</span><span
! 1393: style='font-size:9.0pt;font-family:"Courier New"'>home/httpd/lonUsers/<i>domain</i></span><span
! 1394: style='font-size:9.0pt;font-family:"Courier New"'>/<i>1st.char</i></span><span
! 1395: style='font-size:9.0pt;font-family:"Courier New"'>/<i>2nd.char</i></span><span
! 1396: style='font-size:9.0pt;font-family:"Courier New"'>/<i>3rd.char</i></span><span
! 1397: style='font-size:9.0pt;font-family:"Courier New"'>/<i>username</i></span><span
! 1398: style='font-size:9.0pt;font-family:"Courier New"'>/</span></p>
! 1399: <p class=MsoHeader><span style='font-size:11.0pt'>For example: /home/httpd/lonUsers/msu/m/i/n/minaeibi/</span></p>
! 1400: <p><span style='font-size:11.0pt;layout-grid-mode:line'>Since spring semester
! 1401: 2002, LON-CAPA has logged every activity of every student who has used</span><span style='font-size:11.0pt'>
! 1402: online educational resources and their recorded paths through the web.
! 1403: So another part of data is stored in Òactivity.logÓ which is located
! 1404: in course directory.</span></p>
! 1405: <p><span style='font-size:11.0pt'>The student data restored from .db files
! 1406: in student directory and is fetched into a hash table. The special hash
! 1407: keys Ò<i>keysÓ</i></span><span style='font-size:11.0pt'>, Ò<i>versionÓ</i></span><span
! 1408: style='font-size:11.0pt'> and Ò<i>timestampÓ</i></span><span style='font-size:
! 1409: 11.0pt'> were evaluated from the hash. The <i>version</i></span><span
! 1410: style='font-size:11.0pt'> will be equal to the total number of versions of the
! 1411: data that have been stored. The <i>timestamp</i></span><span style='font-size:
! 1412: 11.0pt'> attribute is the UNIX time the data was stored. <i>keys</i></span><span
! 1413: style='font-size:11.0pt'> is available in every historical section to list which
! 1414: keys were added or changed at a specific historical revision of a hash.
! 1415: We extract the features from a structured homework data, which is stored
! 1416: as particular URLÕs. For example the result of solving homeworkÕs problem
! 1417: by students could be extracted from </span><span style='font-size:9.0pt;
! 1418: font-family:"Courier New"'><i>resource.partid.solved</i></span><span
! 1419: style='font-size:11.0pt;font-family:"Courier New"'>, </span><span
! 1420: style='font-size:11.0pt'>the total number of the students for solving the problem
! 1421: could be extracted from </span><span style='font-size:9.0pt;font-family:
! 1422: "Courier New"'><i>resource.partid.tries</i></span><span style='font-size:11.0pt;
! 1423: font-family:"Courier New"'>,</span><span style='font-size:11.0pt'> and so forth.</span></p>
! 1424: <p><span style='font-size:11.0pt'>All data stored in activity.log includes
! 1425: <i>user name</i></span><span style='font-size:11.0pt'>, <i>time</i></span><span
! 1426: style='font-size:11.0pt'> and <i>resource URL</i></span><span style='font-size:
! 1427: 11.0pt'>. We can divide these data into six types of URLs, listed below, according
! 1428: to their importance for data mining: </span></p>
! 1429: <p style='line-height:150%'><span style='font-size:11.0pt'>1. <b><u>problems:</u></b></span><span
! 1430: style='font-size:11.0pt'> are the most useful data. i.e.<b><u> </u></b></span><span
! 1431: style='font-size:7.0pt'><b><u>msu/mmp/kap14/kap14.sequence___33___msu/mmp/kap14/problems/cd418a.problem</u></b></span>
! 1432: <br>
! 1433: <span style='font-size:11.0pt'>2. <b>html pages</b></span><span
! 1434: style='font-size:11.0pt'> to those are some links in the problems. i.e. </span><span
! 1435: style='font-size:7.0pt'><b>msu/mmp/kap14/kap14.sequence___5___msu/mmp/kap14/cd396.htm</b></span>
! 1436: <br>
! 1437: <span style='font-size:11.0pt'>3. <i>the images</i></span><span
! 1438: style='font-size:11.0pt'>, which are loaded in above html pages. i.e. <i>/res/msu/mmp/kap14/picts/backsoun.gif</i></span><span
! 1439: style='font-size:11.0pt'> .</span></p>
! 1440: <p style='line-height:150%'><span style='font-size:11.0pt'>4. <u>loncapa
! 1441: routines</u>: i.e. <u>/adm/navmaps,</u> or <u>/adm/roles,</u>
! 1442: or <u>/adm/logout</u>.<br>
! 1443: 5. <i><u>Posted data</u></i></span><span style='font-size:11.0pt'> by
! 1444: students: i.e. <i><u>resource.0.11.submission=27.11</u></i></span><span style='font-size:
! 1445: 11.0pt'> <br>
! 1446: 6. remote control gif files: i.e.: /res/adm/pages/v.gif </span></p>
! 1447: <p>So, activity.log usually grows fast, when students have more access
! 1448: to the educational resources. We have brought a sample of different
! 1449: types of data which are logged in activity.log after a preprocessing
! 1450: phase as follows: </p>
! 1451: <p><u>144) 1010955846: studentX --> /adm/navmaps</u> <br>
! 1452: <i>145) 1010955205: studentX --> /res/msu/mmp/kap14/picts/beta_eqn.gif</i><span
! 1453: style='font-style:normal'> <br>
! 1454: <u>146) 1010955685: studentX --> /adm/navmaps</u> <br>
! 1455: <u>147) 1010955988: studentX --> /adm/navmaps</u> <br>
! 1456: </span><span style='font-size:8.0pt'><b>148) 1010955998: studentX -->
! 1457: msu/mmp/kap14/kap14.sequence___5___msu/mmp/kap14/cd396.htm</b></span>
! 1458: <br>
! 1459: <i>149) 1010955999: studentX --> /res/msu/mmp/kap14/picts/velocity_eqn3.gif</i>
! 1460: <br>
! 1461: <i>150) 1010956000: studentX --> /res/msu/mmp/kap14/picts/time_eqn.gif</i><span style='font-style:normal'>
! 1462: <br>
! 1463: 151) 1010954609: studentX --> /res/adm/pages/grds.gif <br>
! 1464: </span><i>152) 1010954611: studentX --> /res/msu/mmp/wordproc.gif</i><span
! 1465: style='font-style:normal'> <br>
! 1466: 153) 1010954626: studentX --> /res/adm/pages/i.gif <br>
! 1467: </span><span style='font-size:8.0pt'><b>154) 1010955717: studentX -->
! 1468: msu/mmp/kap14/kap14.sequence___1___msu/mmp/kap14/cd392.htm</b></span>
! 1469: <br>
! 1470: <i>155) 1010955717: studentX --> /res/msu/mmp/kap14/picts/backsoun.gif</i>
! 1471: <br>
! 1472: <span style='font-size:8.0pt'><b>156) 1010955920: studentX --> msu/mmp/kap14/kap14.sequence___3___msu/mmp/kap14/cd394.htm</b></span>
! 1473: <br>
! 1474: <i>157) 1010955921: studentX --> /res/msu/mmp/gifs/demo.gif</i><span
! 1475: style='font-style:normal'> <br>
! 1476: 158) 1010956113: studentX --> /res/adm/pages/v.gif <br>
! 1477: 159) 1010954629: studentX --> /res/adm/pages/eval.gif <br>
! 1478: 160) 1010954631: studentX --> /res/adm/pages/back.gif <br>
! 1479: 161) 1010954632: studentX --> /res/adm/pages/b.gif <br>
! 1480: 162) 1010954633: studentX --> /res/adm/pages/r.gif <br>
! 1481: </span><span style='font-size:9.0pt'><b>163) 1010955754:</b></span><b>
! 1482: studentX --> msu/mmp/kap14/kap14.sequence___2___msu/mmp/kap14/cd393.htm</b><span
! 1483: style='font-weight:normal'> <br>
! 1484: <i>164) 1010955756: studentX --> /res/msu/mmp/kap14/picts/asound.jpg</i></span>
! 1485: <br>
! 1486: <i>165) 1010955762: studentX --> /res/msu/mmp/kap14/picts/sensor.jpg</i>
! 1487: <br>
! 1488: <i>166) 1010955999: studentX --> /res/msu/mmp/gifs2/example.gif</i><span
! 1489: style='font-style:normal'> <br>
! 1490: 173) 1010955687: studentX --> /res/adm/pages/u.gif <br>
! 1491: 174) 1010955688: studentX --> /res/adm/pages/s.gif <br>
! 1492: 175) 1010955688: studentX --> /res/adm/pages/e.gif <br>
! 1493: </span><span style='font-size:9.0pt'><b>176) 1010956528:</b></span><b>
! 1494: studentX</b><span
! 1495: style='font-size:9.0pt'><b> --> msu/mmp/kap14/kap14.sequence___33___msu/mmp/kap14/problems/cd418a.problem</b></span>
! 1496: <br>
! 1497: <i><u>177) Sent data</u></i> <br>
! 1498: <span style='font-size:9.0pt'><b><u>178) 1010956536: </u></b></span><b><u>studentX</u></b><span
! 1499: style='font-size:9.0pt'><u><b> --></b></u></span><b><u> </u></b><span
! 1500: style='font-size:9.0pt'><u><b>msu/mmp/kap14/kap14.sequence___33___msu/mmp/kap14/problems/cd418a.problem</b></u></span>
! 1501: <br>
! 1502: <i><u>179) Sent data HWVAL11=27.11</u></i> <br>
! 1503: <span style='font-size:9.0pt'><b><u>180) 1010956536:</u></b></span><b><u>
! 1504: studentX</u></b><span style='font-size:9.0pt'><u><b> --></b></u></span><b><u>
! 1505: </u></b><span style='font-size:9.0pt'><u><b>msu/mmp/kap14/kap14.sequence___33___msu/mmp/kap14/problems/cd418a.problem</b></u></span>
! 1506: <br>
! 1507: <i><u>181) Sent data resource.0.11.submission=27.11</u></i> <br>
! 1508: <span style='font-size:9.0pt'><b><u>182) 1010956702: studentX -->
! 1509: msu/mmp/kap14/kap14.sequence___33___msu/mmp/kap14/problems/cd418a.problem</u></b></span>
! 1510: <br>
! 1511: <span style='font-size:11.0pt'><i><u>183) Sent data</u></i></span><span
! 1512: style='font-size:11.0pt'> <br>
! 1513: <i>184) 1010955921: studentX --> /res/msu/mmp/kap14/picts/areal.gif</i></span><span
! 1514: style='font-size:11.0pt'> <br>
! 1515: 185) 1010955731: studentX --> /res/adm/pages/n.gif <br>
! 1516: <br>
! 1517: </span></p>
! 1518: <p class=H5> <span
! 1519: style='font-size:11.0pt;font-family:Symbol;font-weight:normal'>á<span
! 1520: style='font:7.0pt "Times New Roman"'> </span></span>
! 1521: <span
! 1522: style='font-size:11.0pt;font-family:Arial'>Feature Extraction</span></p>
! 1523: <p class=MsoBodyText2>From these two types of student data which are stored
! 1524: by the LON-CAPA system, the features may be considered for classifying
! 1525: the students, are as follows: </p>
! 1526: <p> 1.<span style='font:7.0pt "Times New Roman"'>
! 1527: </span> Total number of correct answers. </p>
! 1528: <p> 2.<span style='font:7.0pt "Times New Roman"'>
! 1529: </span> Total number of tries for doing homework. </p>
! 1530: <p> 3.<span style='font:7.0pt "Times New Roman"'>
! 1531: </span> Time at which the student got the problem correct. Usually better
! 1532: students get the homework completed earlier.</p>
! 1533: <p> 4.<span style='font:7.0pt "Times New Roman"'>
! 1534: </span> Reading the material before attempting homework vs. attempting
! 1535: first and then read up on it.</p>
! 1536: <p> 5.<span style='font:7.0pt "Times New Roman"'>
! 1537: </span> Submitting a lot of attempts in a short amount of time without
! 1538: looking up material in between, vs. those giving it one try, reading
! 1539: up, submitting another one, etc.</p>
! 1540: <p> 6.<span style='font:7.0pt "Times New Roman"'>
! 1541: </span> Getting the problem right on the first try, vs. those with high
! 1542: number of tries.</p>
! 1543: <p> 7.<span style='font:7.0pt "Times New Roman"'>
! 1544: </span> Giving up on a problem versus students continuing trying up
! 1545: to the deadline.</p>
! 1546: <p> 8.<span style='font:7.0pt "Times New Roman"'>
! 1547: </span> Participating in the communication mechanisms, vs. those working
! 1548: alone.</p>
! 1549: <p><br>
! 1550: It might be interesting to group students with time of the first log
! 1551: on (beginning of assignment, middle of the week, last minute) and correlate
! 1552: this with the number of tries or number of solved problems. A student
! 1553: who gets all correct answers will not necessarily be in the successful
! 1554: group if they took an average of 5 tries per problem, but it should
! 1555: be verified from this research. </p>
! 1556: <p>We hope to find similar patterns of use in the data gathered from LON-CAPA,
! 1557: and eventually be able to make predictions as to the most-beneficial
! 1558: course of studies for each learner based on a limited number of variables
! 1559: for each individual student. Based on the current state of the learner
! 1560: in a learning sequence, the system could then make suggestions to the
! 1561: learner as to how to proceed. </p>
! 1562: </form>
! 1563: <br
! 1564: clear=ALL style='page-break-before:always;'>
! 1565: <div class=Section2> </div></div>
! 1566: <br clear=all>
! 1567: <hr align=left size=1 width="33%">
! 1568: <div id=ftn1>
! 1569: <p class=MsoFootnoteText><a href="#_ftnref1"
! 1570: name="_ftn1" title=""><span class=MsoFootnoteReference> [1] </span></a> If instructor
! 1571: is going to port the statistics table data to Excel, he/she can select
! 1572: the checkbox ÒOutput CSV formatÓ at top of the statistics table.</p>
! 1573: </div>
! 1574: <div id=ftn2>
! 1575: <p class=MsoFootnoteText><a href="#_ftnref2"
! 1576: name="_ftn2" title=""><span class=MsoFootnoteReference> [2] </span></a>
! 1577: This name has been got from administration office of Michigan State
! 1578: University for evaluating the examsÕ problem. Here we expanded this
! 1579: expression to homework problems as well.</p>
! 1580: </div></span></span></span></span></span>
! 1581:
! 1582: </body>
! 1583: </html>
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