One of 10 documents developed for preschool programs for handicapped children, the manual focuses on a transdisciplinary training, assessment, and consultation model. Advantages of the approach include the teacher becoming an integral part of the diagnostic process, the clinical staff becoming an integral part of the teaching process, and the more efficient management of time. The introductory chapter defines "transdisciplinary" and discusses the process of assessment in question and answer format. The second chapter examines parent and staff roles and responsibilities, and outlines evaluation and interview topics. The next chapter, on training, assessment, and consultation, focuses on training activities for assessment and the role of consultation between team members and teachers. The final chapter provides a 2 year implementation plan with descriptions for methods of using the transdisciplinary process in screenings and preentry evaluations. Appendixes provide sample job descriptions and a transdisciplinary report. (DB)