Presented is a curriculum guide and teaching activities for a K-12 program in environmental education. The program is based on forty-four important environmental education concepts. These concepts are sequenced according to grade level. Activities to teach each concept are suggested. The concepts are organized around the interdependency of living things. The concepts are further developed with attention to three subthemes, economics and culture, ecology, and management. The document is intended to provide teachers with concepts that should be taught in an environmental education program and to provide direction as to how these concepts may be taught. This work was prepared under an ESEA Title III contract. [Not available in hardcopy due to marginal legibility of original document.] (HB)