The environmental education curriculum in this package emphasizes biological diversity. The curriculum contains 10 units--each dealing with a specific concept relating to biological diversity. Each unit contains hands-on activities designed to make children aware of the importance of maintaining a biologically diverse world. Some activities are best suited for use at the school site prior to a visit to a park area. These activities are then reinforced by activities conducted in the park. There are further activities that can be used in the classroom after students return from the park. Units include: (1) "Biodiversity: The Spice of Life"; (2) "Extinction Is Forever"; (3) "The Role of National Parks in Maintaining and Preserving Biological Diversity"; (4) "Biological Diversity: Its Value in $$$ and Sense"; (5) "Biodiversity: Considering the Global Connections"; (6) "Habitat and Niche"; (7) "Organisms/Populations of Organisms"; (8) "Adaptation/Change"; (9) "Communities"; and (10) "Biodiversity at Historic and Cultural Sites." Three levels of biological diversity are explored: ecosystem, species, and genetic. Each unit contains an overview, table of contents, teacher background, pre-visit activities, on-site activities, post-visit activities, evaluation, resources, and blackline masters. Each activity includes the objectives, materials, and procedure. (KR)