To Delete Old Posts:

  1. Enter Blackboard and open the course.
  2. Edit Mode - On.
  3. Open the Discussion Board.
  4. Find a Forum that has posts. Open the forum.
  5. Click the top left checkbox to select all the threads.
  6. Optional: Uncheck any message to be kept.
  7. Click Delete to remove the student posts.

A confirmation message appears in the green bar at the top of the page.