Designed primarily for elementary and secondary school teachers, the book presents one approach to the systematic and effective use of positive reinforcement to motivate better learning in normal or disturbed children. In Part 1, describing how contingency contracting works, each chapter contains a self-diagnostic pretest, narrative summary and intermediate test, and then a sequence of frames (statement-and-question steps), followed by a posttest. Part 2 concerns the application of contingency contracting in the classroom, and covers the preparation of materials, classroom organization, class management, and correcting contract malfunctions. Chapters in this part are also programed, with questions following expository paragraphs and chapter posttests. (KW)