The Interactive Videodisc for Special Education Technology Project being conducted at Utah State University is developing and field testing a system to provide computer-assisted instruction to mentally handicapped students. The system combines an industrial videodisc player, an Apple II microcomputer with two floppy disc drives, a color monitor with a touch panel, and instructional programs utilizing prepared videodiscs. The system presents audio instructions to the student and displays a visual image on the monitor. The student can respond by touching the image of an object displayed on the monitor screen. The touch panel determines the coordinates of the object touched, triggering the next step in the program. Six instructional programs have been developed and are currently being field tested. (Author/PGD)