The document provides two options for reassembling students from breakout rooms back to the main room in Blackboard Collaborate. Option 1 involves clicking the Tools menu bar and selecting Breakout Rooms then Return Everyone to Main Room. Option 2 involves clicking the Rooms menu in the Participants Panel and selecting Return to Main Room. The document also notes that students can be returned to breakout rooms by selecting Return Everyone to Breakout Rooms and that all rooms can be closed by selecting Close All Breakout Rooms.