This instructional packet is one of 14 school environmental education programs developed for use in the classroom and at the Dahlem Environmental Education Center (DEEC) of the Jackson Community College (Michigan). Provided in the packet are pre-trip activities, field trip activities, and post-trip activities which focus on the natural history of Michigan. Strategies for using these activities with fourth grade students are also provided. The pre-trip activities focus on Michigan's prehistory, changing populations (including endangered species), glaciers, and plants and animals in Michigan today. These areas are reinforced during indoor and outdoor activities conducted during a field trip at the DEEC. These activities (and lists of formal and non-formal field trip objectives) are provided in a separate field trip guide. The post-trip activities include a valuing exercise, exercises focusing on land use decisions, and exercises related to human ecology. Most of the activities (and corresponding student activity sheets) are highly interdisciplinary and will enhance mathematics, language arts, and social studies as well as science lessons. In addition, students are given opportunities to express their feelings and opinions and develop skills needed to communicate with others and solve problems. (JN)