Describes an instructional system, used by the University of Florida for introductory engineering courses, which employs flexible combinations of modular curriculum packages, variable pacing, programed learning materials, and computer assisted instruction. Discusses the cost effectiveness of this system compared to conventional systems. (MLH)

The Personalized System of Instruction, known as the Keller Plan, is compared with the mastery learning approach. Learning concepts of both are discussed, as well as differences, difficulties, and effectiveness of each method. (SA)