This evaluative report summarizes the objectives, costs, and outcomes of a project undertaken by South Oklahoma City Junior College to develop 50 computer-based tutorial lessons to assist students in mastering the requirements of a competency-based physics course. A rationale for the project is presented first, based on the inordinate amount of…

Describes the audiotutorial program in earth science at St. Petersburg Junior College's Clearwater Campus started ten years ago. Although initial expenses were considered high, they are now equivalent to those of traditional delivery systems, and students come away with better grades and more positive attitudes. (Author/JN)