Four major elements were critical in the creation of the Chula Vista Professional Development School (CVPDS), a joint venture of Chula Vista City Schools (California) and San Diego State University: strong central figures in the university and public schools; powerful, well presented ideas; inclusion of key university and public school figures early in the planning process; and adequate resources. Important factors in the implementation stage were careful attention to communication and to nurturing relationships. An attachment to this paper, "The Chula Vista Professional Development School," describes CVPDS as a specially designed facility inside a new elementary school, Clear View Elementary, that has three specific goals: (1) to develop and offer a comprehensive field-based collaborative preservice teacher preparation program; (2) to create and manage comprehensive programs for extended development of teaching professionals in the Chula Vista Schools; and (3) to provide a setting for educational professionals to come together to examine, evaluate, and reflect on teaching and learning. The program description includes outlines of the program goals and curriculum content of the preservice and inservice programs, the site-based master's program, and specific program plans for 1991-1992; discussion of systematic reflection and disciplined inquiry in the PDS; a conceptual outline of how technology may be used to address specific program issues; and a brief physical description of the PDS. (IAH)