Break students into groups to take a position on a topic that does not have a clear-cut answer. (Students can be paired into pairs, and then quads.)
Relatedly, ask students to take a position (strongly agree, agree, disagree, strong disagree), to write down their rationale (using arguments, evidence, and quotes from the reading), and then stand near the sign that most closely reflects their position. They each then articulate their rationale, and can also move if their position changes.
Source: Barkley (2010). SET 11: Academic Controversy; SET 40: Stand Where You Stand.