Described are the construction and analysis of three play learning centers for preschool mentally retarded and cerebral palsied children, and pre-adolescent and adolescent emotionally disturbed children. Section I of the report provides an introduction on the importance of play, research on playground equipment, considerations in designing play learning centers, and existing playgrounds designed for the handicapped. Presented in Section II is information on such construction aspects as framing materials, surface coverings, materials for fastening, and recommended tools. The following three sections discuss the design process, construction and construction costs, recommended materials, and descriptive data on facility use for each of the three play learning centers: United Methodist Preschool Play Learning Center for mentally retarded children, United Cerebral Palsy Play Learning Center, and the Residential Treatment Center for emotionally disturbed children. A brief section on recommendations for further research is also included. Appended is the program for information dissemination associated with the play learning research and demonstration project, a playground design checklist, and detailed construction plans for each of the three play learning centers. (SB)