Allow the instructor to close the question and disallow any additional answers.
The easiest approach is to just not allow them to post an answer....
But this would also keep them from viewing the other students answers and reviews.
That might be OK as it will create further incentive to post an answer....
I think I'll go for this easier solution. I can just add a field to the question which indicates whether
students are allowed to submit answers. It starts as true but the instructor can set it to false (or back to true).
Allow the instructor to close the question and disallow any additional answers.
The easiest approach is to just not allow them to post an answer.... But this would also keep them from viewing the other students answers and reviews. That might be OK as it will create further incentive to post an answer....
I think I'll go for this easier solution. I can just add a field to the question which indicates whether students are allowed to submit answers. It starts as true but the instructor can set it to false (or back to true).