Children teaching other children is not a new idea, but it is an effective way for older children to have a chance to help younger children and to learn effective methods of helping. This booklet describes numerous effective tutoring programs while outlining the origins of cross-age helping programs, pointing out traps to watch for, and noting key elements in an effective program. Emphasis is given to the need for training and supporting the older, tutoring students. Many programs have training programs to help the older students learn (1) how to relate constructively to small children, (2) how to teach specific subjects or skills, and (3) how to use their own creativity to invent games and other learning activities to help those younger. (Author/IRT)