How the students perceive and interact with one another is a neglected aspect of instruction. Much training time is devoted to helping teachers arrange appropriate interactions between students and materials (i.e., textbooks, curriculum programs, etc.), some time is spent on how teachers should interact with students, but how students should interact with one another is relatively ignored. It shouldn't be. How teachers structure student-student interaction patterns will have a lot to say about how well the students learn, how they feel about school and the teacher or professor, how they feel about each other, and their self-esteem.