Conference takeaway
What overarching impression did the conference make on participants? Ask the audience to provide feedback.
More types of activities
Teams by color
Split your participants into teams by color. Future questions can then segment responses by team.
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.
Priority matrix
Determine which projects are both important and urgent by asking participants to map them to a graph.