Cliques occur in the classroom and can embody a power in numbers effect if not managed properly. Here are some tips. 1. Allow the cliques to work together in groups. Keeping a group together creates a section which can be managed easier than if spread across the classroom. 2. Encourage them to work amongst themselves. This approach is a win win, learning is enforced and distractions are reduced. 3. If a problem is presented from the group, walk over and calmly address the problem to the entire group. Making a huddle creates a team feeling, and since you are talking, it makes you the leader of that team. Everyone will get on board.