--- loncom/html/adm/help/tex/Answer_Display_Overview.tex	2013/08/04 22:57:58	1.3
+++ loncom/html/adm/help/tex/Answer_Display_Overview.tex	2013/10/18 03:41:46	1.4
@@ -1,7 +1,14 @@
 \label{Answer_Display_Overview}
 \index{answer display}
-Answers are typically not displayed to the student when they submit an answer to a problem. 
-When the problem is assigned in a course, a parameter for the `answer date' can 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. Note that an xml tag `postanswerdate' is also available if you want to display additional information besides 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.
+
+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