Interactive videodisc technology offers tremendous potential for enriching instruction. Although more and more videodisc technology is appearing in schools, the technology is not being utilized fully. To provide assistance for teachers, a study was conducted at the University of Florida which evaluated commercial science videodiscs and developed an instrument for assessing videodisc programs. The results of this study, published in a booklet entitled "Videodiscs in Education: Overview, Evaluation, and Activities," and summarized in this paper, can help teachers throughout the nation in the selection of videodisc resources for their curriculum. The evaluation instrument includes the following instructional features: instructor resources; student resources; indexes; customizing features; instructional strategy; content; format; system requirements; and purchasing information. After the instrument was designed and validated, 30 commercial videodiscs were evaluated. Examples of the evaluations are presented in two matrices which depict the results of various aspects of the videodisc program. (Contains six references.) (Author/MAS)