The materials in the set include a student reader "The Story of Ecology," a leaders' guide, and a large, pictorial wall chart. The student reader is divided into 10 units relating to a definition of ecology, the sun and life, air and the water cycle, major divisions of the earth, plants and food chains, distribution of plants and animals, communities, habitats, balance in nature, and man's place. The leaders' guide provides supplemental information and makes suggestions for activities for each of the units in the reader, and provides a list of materials, a bibliography, and a glossary. The ecology wall chart shows 12 colored scenes depicting various cycles and biomes, with explanatory readings under each picture. (PR)