Applications of videodisc technology to teacher training are beginning to emerge, and the rate of technological development is likely to expand rapidly through the 1990s. Videodiscs are a powerful tool for teacher training; however, they are not a panacea. This paper first describes some of the fundamental operating characteristics of videodiscs and their use in training programs. Then advantages and limitations of the medium for teaching instructional interaction techniques to preservice trainees are examined. Finally, the integration of various training methodologies is recommended to ensure that trainees both acquire knowledge about instructional techniques and learn to apply them when they teach.