This investigation is an evaluation of a teacher training project designed to aid teachers of the mildly mentally handicapped in developing and implementing plans for integrating computer use into their existing math curricula The training project was designed to facilitate teachers' implementation of recommended practices for effective use of computer-based instruction Both classroom observation and teacher opinion data indicated that teachers who underwent the training program were more effective at integrating microcomputer technology than were teachers who had volunteered to participate in the training project but were not admitted due to enrollment limitations.