The Planning, Monitoring and Implementing (PMI) Evaluation Model for Decision-Making was used by the District of Columbia Public Schools to monitor their Office of Educational Technology in its efforts to provide direction and coordination for computer related activities, and to plan and implement educational television projects in math and science. The target population included 90,000 students in regular programs, special education, career development, and continuing education, and all teachers and administrators. Included are: (1) background and project objectives; (2) a description of the project; (3) the external evaluation design; (4) the program results; and (5) appendices, which contain the evaluation model schema, sample questionnaires, descriptions of television tapes, summaries of questions for science and math teachers on their rating and use of tapes and on their training for the program, a letter to the Board of Education concerning installation of the KU band down satellite receiver and the telecasting of the teacher training projects, documents verifying planning for summer computer camps, and purpose of the software guide. Evaluation findings show that, through the Office of Educational Technology, the two main aspects of educational technology--instructional television and computer related activities--have been advanced, and effective managment practices were demonstrated. (JB)