Through direct experience within natural settings, outdoor education allows students to learn about environmental concerns such as migration of birds, weather systems, wildlife habitats, watersheds, soil erosion, geological formations, food chains, and community resources. All subject areas in the present curriculum can be enriched through outdoor education experiences, and more importantly, subject areas become related, integrated, and enhanced. The introduction contains an outline of procedures in the establishment of an outdoor classroom, including site selection, site design, and a site inventory checklist. Ten model lessons with activities are described, with each lesson containing: a list of objectives, an inventory of related curriculum areas, an enumeration of required teacher background skills, several suggestions for 10-minute activities with questions to guide observations, a catalog of ongoing activities requiring extended visits, a record of suitable expansions to the lesson with related activities, and a short vocabulary. The ten model lesson domains are: (1) discovering local wildlife; (2) learning about apples; (3) gathering information about birds; (4) facts about plants; (5) examination of rocks; (6) learning about soil; (7) understanding water habitats; (8) experiences with trees; (9) awareness of the water cycle; and (10) weather observations and predictions. The last section contains an extensive list of both curriculum and program resources. (JJK)