Do you guys require your students to raise their hands in your classroom? This will be my fourth year, and in the past, I have avoided requiring hand raising because I teach history and wanted to encourage discussion. What I've found, though (probably obvious to the rest of you) is that in most classes it only encourages the loudest students to drown out the rest of them and I feel it keeps some students from feeling comfortable to speak up. I'm still hesitant to require hand raising, because won't it make class discussions stiff and formal? Any ideas? What do you do?