Topics for next class

Student questions often go unanswered during a class discussion. Collect them before they slip way so you can discuss them during the next class.
More types of activities

Conference takeaway
What overarching impression did the conference make on participants? Ask the audience to provide feedback.

Word cloud
Visualize words from audience comments, questions, and thoughts as a word cloud.

Team goal visualization
Ask your team to specify where focus is needed, so they'll be more likely to direct future actions toward that focus.