Problems are easiest to handle when they are small. A side conversation, a student disengaging, rising tension in a discussion, these are early signals you can catch if you are watching. The skill is to keep part of your attention on the room as a whole even while you teach.

When you notice something, a small, low-key response often settles it: a pause, moving nearer, a quiet redirect, or a question that re-engages a drifting student. Acting early and quietly prevents the public confrontations that escalate. If you sense a discussion heating up, you can slow the pace or redirect before it becomes a problem.