This document is a summation of four years of work at the Research and Development Center for Teacher Education in Austin, Texas. The basic aims of this center are to research the effect of teacher education on teaching behavior, to research the effect of such teaching behavior on relevant aspects of child learning, and to develop a teacher education system composed of many small instructional modules. Included in this report are descriptions of various projects and activities in areas such as data processing, learning technology (consulting), mathematics and science modules building, and decision-making in preservice teachers' choice of teaching strategies. The programs, which are both personalized and individualized, emphasize a) feedback to prospective teachers; b) earlier, active involvement of teacher candidates, and c) experience for teachers in designing appropriate subject-matter content. The major developmental products of this basic research and experimentation are a diversified, comprehensive teacher education system and instructional guides to assist teacher educators. This report concludes that the center's close relationship with pre- and in-service teachers as well as public schools will ensure that instructional approaches will be responsive to the expanding role of the school in meeting the needs of the students. (PD)