The proceedings of a workshop for parents and educators of handicapped children focuses on least restrictive environment. Three papers introduce the workshop: "Special Education: The Development of Services" (M. Reynolds); "Least Restrictive Environment: Decision Making" (H. Sobehart); and "Communication and Conferencing Skills for Parents" (J. Lanz). Four panel workshops examine placement options: a regular class with supportive services, a part time special class in a regular school, a full time special class in a regular school, and a special class in a special school. J. Birch and M. Reynolds present the keynote address: "Seven Big Ideas About Mainstreaming in U.S. Public Schools." Three workshops consider implementation: "Changes in Teacher Education: A Positive Response to P.L. 94-142" (C. Hunter); "Problems: Communicating Concerns" (D. Ewonce, et al.); and "Vocational Opportunities in the Least Restrictive Environment" (A. Adduci, et al.). An open panel of state and local administrators concludes the proceedings. (CL)