This enthnographic study examines the process of implementing an interactive videodisc program in a senior high school. The research questions were: What happened during the implementation process and what factors facilitated or hindered the implementation of the innovation? Descriptive data were collected through participant observation, interviews, and artifact collections. Study results revealed that implementing an educational innovation is a complex, multidimensional process involving the organization, the people, and the innovation. Effective implementation depends on the combination of all the factors described in the study, including initiation; planning, preparation, and support; communication and collaboration; district and school policies; teachers' realities; students' characteristics; change strategies; and characteristics of the innovation. (Contains 30 references.) (Author/JLB)