The intervention will be delivered by a member of our staff in conjunction with the teacher as well as a health education entertainer ('Screaming with Pleasure Productions'). Research assistants will distribute the enrollment questionnaires and "goody" bags. The basic content of the educational message has been designed by Drs. Shadick, Liang, DeJong and the late Dr. Daltroy, and has been used extensively on the Nantucket ferry study and in the "Feel Find Free" Program. The timing takes advantage of the classroom audience, is humorous and entertaining and the message is relevant to anticipated outdoor activities.