An overview is presented of the procedures, findings, interpretations, and recommendations related to Hawaii's 3 on 2 program. The 3 on 2 program is an organizational concept for the primary grades in which three teachers are involved with two classrooms in a team teaching approach. The four major objectives are: to acquire basic learnings, to develop self direction in learning, to improve self-concepts, and to establish satisfying interpersonal relationships. The summative evaluation is based on an advocate-adversary approach, in which one team focuses on the program's merits and a second team identifies the program's weaknesses. The types of information gathered by the evaluators included achievement gains; attitudes of students towards school, learning, and themselves; opinions of professional personnel and parents; teacher absenteeism; program costs; individualization; and legal and departmental mandates. In comparing the 3 on 2 program to self-contained classes, major findings, based on evaluation reports, included: no significant differences in academic achievement or student attitudes; opinions of teachers and administrators varied; teacher absenteeism showed no differences; costs were higher for 3 on 2; and individualization was not clearly understood. (MH)