Because our field of education is unique, based on the fact that our student population is so diverse (not just in age, but knowledge base and learning styles differ greatley), creating learning teams that don't result in "clicks" is key. Seperating the students who sit together and/or around each other and moving students who sit in the back to the front and the one's who sit in the front to the back - has resulted in positive results. Of course you will have the few who resist and I don't feed into the situation - eventually they come along - resisting - but they come along. It eases the tensions the clicks have created and gets everyone involved in student projects.