These are powerfully validating experiences. Depending on the presenter's goals, these questions can be modified or replaced. Also, notice the change of pace from presenter lecture to group interaction. This is a collaborative activity to review or acquire information and to do some slightly higher order thinking on aspects of mediation. Alternate which reporter goes first with others adding anything else.
Presenters fill in gaps or add clarifying thoughts.
If possible, have them prepare to select a mentality and scenario to play out when role-play activity is commenced. This keeps participants focused and helps get them prepared for the role-plays to follow. . Fast groups will get underway during role-play period while you may need to assist other groups to get started. As noted above, stop to report out group answers. Then send them back to work on the remainder of the questions.