A six-phase inservice plan based on a cybernetic, modified operations research model was used and evaluated in elementary and secondary schools. The cybernetic planning loop is characterized by adaptation and adoption based on continuous assessment, dissemination, and feedback processes. In phase one, a needs assessment identified planning and implementation needs, participant priorities, and resource persons available to deliver the system. On the basis of this information, it was decided to address four areas with the plan: public schools, a local college of education, community resources and development, and intern training. The second phase consisted of interactive planning and development for each of the program areas by Teacher Corps staff. Phase three was implementation, and phase four was evaluation. The fifth phase marked the institutionalization of the successful processes, such as a community resource guide, a professional development center, a community education component, and mainstreaming inservice. In phase six, the dissemination of information was accomplished through publications, presentations, handbooks, and dissertations. Extensive analysis showed that the program achieved most of the original inservice objectives. Appendices provide copies of the needs assessment instruments, evaluation summaries, levels of participation, and a record of the types of dissemination. (FG)