The authors describe a data based physical education curriculum designed for low incidence severely handicapped students by Oregon State University in conjunction with Teaching Research. Chapter 1 provides a brief introduction to the physical education curriculum and the Teaching Research model with emphasis placed on the importance of individualized and data based instruction. Chapter 2 addresses the basic principles underlying the behavior modification approach that is utilized in the Data Based Gymnasium. Chapter 3 summarizes the principles of behavior programing in the Data Based Gymnasium and illustrates the forms used for tracking those behaviors. Some examples of how programming and tracking occurs are given. It is explained in a fourth chapter that gymnasium management, like classroom management, includes the welding together by a teacher/manager of the curriculum containing complete scope and sequence, a data keeping system, materials and reinforcers, aides, volunteers, and parents. Chapter 6 describes the Game, Exercise, and Leisure Sport Curriculum; placement procedures in the curriculum; and the development of the physical education individualized education program. Chapter 6 covers ways of tracking a student's performance in the acquisition of a skill; while Chapter 7 outlines guidelines for volunteers. Chapter 8 considers small group activities for the severely and moderately handicapped. The utilization of medical support services is the focus of Chapter 9. A final chapter points out three ways in which parents can be involved in their children's education, including the use of parents as volunteers. Appended are examples for the Game, Exercise, and Leisure Sport Curriculum. (SB)