This sourcebook on educational technology materials was developed in conjunction with a regional workshop on "The Use of Educational Technology by Teachers," which was held in September 1985 and attended by participants and observers from Bangladesh, India, Indonesia, Japan, Malaysia, New Zealand, the Philippines, the Republic of Korea, Sri Lanka, and Thailand. The first of three chapters in this sourcebook provides a brief discussion of ways in which educational technology materials can be used to achieve some broad educational outcomes. The types of media produced in the participating countries are outlined in the second chapter, which also suggests 11 criteria for the selection and/or production of multimedia materials and 17 steps for the development of such materials. Materials brought to the workshop by the participants for demonstration and evaluation are then briefly described, and a table displaying the results of the evaluations concludes the chapter. The third chapter discusses the use of multimedia kits to solve teaching problems and describes the design and use of multimedia kits for three specific situations: (1) a kit for one teacher schools in India; (2) a kit for shared reading in multicultural classes at the elementary level in New Zealand; and (3) three multimedia kits prepared by the Korean Educational Development Institute (KEDI) for teaching in large classes. One of the KEDI kits is designed for use by elementary students and the other two for teacher training programs at the elementary level. (EW)