This report describes an interactive video program designed to help college biology students with their abilities to visually discriminate between instructional images, and to think critically about those images. A brief discussion of interactive video technology is provided, including details about videodisks, CD-ROM databases, computer software, and microcomputer controlled videodisc players. The interactive video program used in the study is then described as a Level III program which incorporates computer control on a videodisk player. This program allows the instructor, using computer software and a computer, to design science instruction that will put the student in control of both the pace and sequence of instruction. Small group instruction was chosen as the learning method, and questioning among the students was encouraged. Results of a student survey showed positive attitudes toward the program and an overall increase in improvement in both visual perception and thinking skills. Additionally, the completeness and substance of student answers to essay questions showed improvement. (20 references) (DB)