As one in a series of two teacher's guides dealing with environmental education, this publication for grades 7-12 contains basic concepts, activities, and questions designed to emphasize the primary role of man as a participant in, rather than master of, his natural surroundings. Topics covered include survival, interdependence, scarcity, recyclement, right vs. responsibility, planning, valuing, social forces, and optimism. For each concept or generalization, activities which the teacher might conduct are suggested accompanied by several probing questions. Activities are not intended to reflect a subject matter orientation. Three appendices provide useful information as to (1) a list of subject headings and topics pertinent to the environment; (2) periodical, general, and film indexes featuring environmental concerns; (3) individuals, groups, and government agencies that may serve as resources of information or as classroom speakers on the environmental issue. (BL)