Man, with his ability to develop and control his environment, and, conversely, the controlling or limiting factors of the environment that affect man's health and activities are dealt with in this prototype curriculum for grades 7-9. The basic principles related to ecology affecting man's health are given primary consideration. Specific curriculum content studies: (1) the development of ecology, (2) man's health and the physical, biological, and sociocultural environments, and (3) an individual's health as affected by reacting with his environment. Appended material includes bibliographies of multimedia resources for teachers and students. This publication is one in a series of health curriculum materials devoted to environmental and community health (Strand IV). Four other strands deal with physical and mental health, sociological health problems, and education for survival. The format consists of four columns intended to provide teachers with: (1) a basic content outline, (2) major understandings and fundamental concepts, (3) teaching aids and learning activities, and (4) information about resource materials, sources, and personnel. Because of the comprehensive nature of the total curriculum, teachers are advised to become familiar with all strands presently in print. Related documents in Strand IV are ED 037 738-9, ED 049 477-8, and SE 016 280-6. (BL)