That the construction of a multi-million dollar school plant should be the result of the community's best possible thought, since concrete and steel are not suitable media for necessary future changes in the educational environment, is the basic philosophy of this report. Architects, administrators, teachers, school committeemen, and consultants all participated in designing both a new physical plan and a compatible curriculum. This was accomplished without a communications gap among the participants by the employment of a physical model of a proposed school plan. By observing the physical model with movable elements and simulation techniques, planners were able to comprehend more quickly and relate the number of variables present in curriculum change, new course structure, or the design of the building to house instructional programs. The educational specifications for the Chelmsford Park High School are included as are recommendations for simulation as an instructional tool. The appendices include a section on teacher training (a system concept for developing teacher empathy), a sample community questionnaire, and the planning schedule for the proposed high school. A bibliography of sources on school planning is also included. (NI)