Modules of physics instructional materials, each focusing on a particular physical system of interest to technical students, are being developed at four separate centers and coordinated by a Technical Physics Project Steering Committee. A typical module, constituting from one to three weeks of a physics course, will include a statement of behavioral objectives, entry/exit tests and a resource document for the instructor, as well as the instructional program. The latter will describe student investigations related to the system and lead the student to the understanding and skills necessary for him to meet the stated objectives. Although the main focus of each module will be on understanding how its physical system works, the intention is that a selected series of modules should introduce students to the major ideas and principles of physics central to their future role as technicians. The choice of systems and levels of treatment will be coordinated by the Steering Committee to provide adequate overlapping. Thus, instructors may vary their selection of modules to create courses which match local interests and degrees of sophistication. The project aims to produce forty to fifty modules over a four year period and to evaluate the use of these materials on a national scale. (Author/TS)