I think you are mistaken, at least your description of your solution does not square with your recitation of the problem.
If the instructor is indeed creating student wikis, then after he has created it he will see a listing of every student when he opens the wiki. If he edits the wiki in this view he changes only the instructors version of the wiki, not the students. On the other side of the coin, the student does not see the material the teacher added to the wiki unless the teacher edits that specific student's wiki. As far as I know there is no way for a teacher to make universal changes to all the wikis, which is one reason it is handy to learn how to set up multipage student wikis.
Wiki
Problem with creating a table in Wiki 1.9 version
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