Learning activities, teaching materials, and lesson plans are contained in this guide, developed by six teachers at the Carl Sandburg Middle School in Freeport, Illinois; it suggests ways to integrate environmental study into the existing curriculum for art, science, English, mathematics, and social studies. Activities for classroom learning and school site exploration are organized by subject area, with the science, mathematics and social studies sections including lists of environmental concepts currently taught. The art section provides a list of supplies, scrap materials and tools, and suggests over 50 projects in a variety of media, including drawing, painting, sculpture, and collage. The science section includes materials for teaching 48 environmental study vocabulary words and suggestions for using the school site and neighborhood to learn about weathering and erosion and plant and animal identification. Mathematics activities include calculating costs of various types of pollution, checking home energy usage; and estimating heights of trees and buildings. Suggestions for book reports, creative writing, and vocabulary skills are covered in the English section. The social studies section provides student worksheets for exploration and observation of the school site. A list of films, filmstrips, and books available for the Sandburg Environmental Education program is appended. (JH)