Norms/Expectations

I asked for some friendly advice from a cohort about classroom management methods that they found to be successful and they indicated that taking the time to stop everything and reiterating the classroom norms is a good way for students to realize their behavior that may be deemed unacceptable. What's more is that if the norms/expectations are actually created and accepted by the class, it becomes an even more effective tool of management because then students become aware of how they may be acting contrary to their own rules.