Developed to provide teachers with specific directions for teaching about the environment, these guidelines for Washington state schools explain how environmental education can be integrated into every level of the school system. A general systems approach is proposed that emphasizes the interactions that exist within the natural environment. The guidelines identify core themes and a conceptual structure that encourages a synthesis of subject matter across and between a variety of traditional disciplines. Contents include: (1) philosophy of environmental education; (2) identification of ten core themes; (3) directives on using the guidelines; (4) framework for environmental education; (5) learner outcomes for four major goal areas; (6) steps in carrying out an environmental program; (7) planning model; (8) staff development inservice program; and (9) program evaluation. Appendices contain lists of curriculum programs and resources, a glossary, and the legal authority for environmental education in the State of Washington. (ML)