Component aspects of Program for Learning in Accordance with Needs (PLAN), a systems approach to individualized education on the elementary and secondary school levels, are discussed. PLAN, which has been in operation in twelve selected school districts in California and in the northeastern U.S. since 1966, focuses on assisting the individual to learn about educational, occupational, avocational, and social roles and activities, and to plan his development to utilize his potentialities in ways maximally satisfying to him. PLAN includes instruction in language arts, social studies, science, and mathematics as well as the student-centered individual development program. PLAN is considered in terms of: (1) specific educational objectives, (2) learning methods and materials, (3) evaluation, (4) guidance and individual planning, (5) teacher development, and (6) computer services. Use of PLAN in an elementary school in California during the 1967-70 academic year and individual evaluation of the program by the teachers involved in it are noted. It is concluded that the availability of such a comprehensive system for individualized instruction does not ensure its effectiveness in the classroom but remains a function of the interaction between student, teacher, and administrator. (AE)