Studied the effectiveness of applying Keller's personalized system of instruction (PSI) five consecutive times to the teaching of the switch principle in logic design problems. Concluded that the PSI method continued to be effective as compared with the lecture approach. (CC)

Discusses the design principles and operations of a new program with emphases upon integrated curriculum planning, individually paced instruction, and mastery learning. Indicates that students succeed better both in pre-professional courses and in follow-up engineering courses than do those in conventional courses. (CC)