Teaming is a step toward individualization or personalization of learning. Teams should be composed of from 3-6 teachers, one or more aids, student teachers if possible, and 60-150 students of varying chronological ages. The team training program should be designed to make all participants aware of changing expectations, and to build the skills needed to implement the program. The training program should also concentrate on building decisionmaking structures that assure individual teachers, the building principal, and others of the opportunity to make the appropriate decisions within the range of their defined responsibilities. Professional self-improvement is encouraged in a team setting as teachers adopt the strategy of voluntary peer evaluation. The individual teacher diagnoses management or instructional problems and contracts with another teacher to observe and critique his teaching. (Author)