The document describes a project to design, develop, and evaluate a set of audiovisual training modules to augment a sourcebook for special education teacher trainees and to assist trainers and curriculum developers in the design of teacher training materials. It is explained in Chapter I that the project involved the 4-D Model--Define, Design, Develop, and Diffuse. Chapter II provides a rationale for the project in terms of how the content of the proposed instructional system fulfills legitimate needs for training teachers of the handicapped. Reviewed in a third chapter are the task analysis procedures for the seven project modules: teacher-training materials development, trainee analysis, teacher-training tasks analysis, teacher-training concepts analysis, structured role play materias development, teacher-training games development, and audiovisual training modules development. Chapter IV discusses the process and results of predevelopment validation in the project. In a fifth chapter, brief summaries of trainee and context analysis and media and format selection are provided, and highlights in the design of different modules are recounted. Some major features of evaluation and revision of the seven modules are reported in a final chapter. Among appended materials are reports on materials developed by field-test workshop participants. (SBH)