--- loncom/html/adm/help/tex/Answer_Display_Overview.tex	2013/07/14 02:11:34	1.2
+++ loncom/html/adm/help/tex/Answer_Display_Overview.tex	2013/10/18 03:41:46	1.4
@@ -1,9 +1,16 @@
 \label{Answer_Display_Overview}
 \index{answer display}
-Answers are typically not displayed to the student when they submit than answer to a problem. 
-When the problem is assigned in a course, a parameter for the `answer date' can be set that will show the students the answers when they revisit the problem after that date. The answer date is separate from the due date which is also set when the problem is assigned. Note that an xml tag `postanswerdate' is also available if you want to include more information along with the answer. The content in the xml tag is suppressed until after the answer date.
+Several xml tags are available to provide student guidance during problem display
+and also after the answer date. These include \texttt{<notsolved>}\index{notsolved}, 
+\texttt{<preduedate>}\index{preduedate}, which are useful when the students are working
+a problem, and \texttt{<solved>}\index{solved}, \texttt{<postanswerdate>}\index{postanswerdate},
+which are helpful in providing feedback. The content in the xml tag \texttt{<postanswerdate>} is suppressed until after the answer date.
 
-Suppose you want the answer displayed as soon as the student finishes the problem rather than waiting for 
+Answers are typically not displayed to the student when they submit an answer to a problem, 
+unless their answer is correct. 
+When the problem is assigned in a course, a parameter for the `answer date' must be set such that students will see answers displayed when they revisit the problem after that date. The answer date is distinct from the due date which can also be set when a problem is assigned.  
+
+Suppose you want the answer displayed as soon as the student finishes the problem rather than waiting until 
 the answer date. For example, this may occur in a multipoint problem where you
 want the students to see the correct answer for one part before proceding to the next part. If you would like the 
 computer answer to be displayed after the student answer is correct, or the maximum number
@@ -26,7 +33,7 @@ The options for the problemstatus are: `
 ``answer'' - shows computer answer as described above; ``no'' - 
 don't show correct/incorrect feedback; ``no\_feedback\_ever''- supresses all feedback.
 
-If you want to provide additional explanation in addition to the answer as soons as 
+If you want to provide additional explanation in addition to the answer as soon as 
 the maximum tries allowed for the part have been reached, include a conditional
 block in the problem part, and set the condition for the part to evaluate to
 true when the problem is either correct, no tries remain, or it is post-answer date.