The materials in this educational packet are designed for use with students in grades 4 through 7. They consist of a leader overview, teaching guides and student data sheets for three activities, and a poster. The leader overview describes the nature of beaches, dunes, and barrier islands, tracing their development, settlement, and management and emphasizing the mobile, dynamic nature of these habitats. A glossary and list of reference materials are included. The three activities are: (1) a transect study in which students are introduced to a beach's habitats, zones, movement, and problems; (2) an investigation of the adaptations necessary for survival on a beach; and (3) an exploration of human uses of beach, dune, and barrier island habitats. The teaching guides provide an introduction to and instructional strategies for the activities as well as a list of materials needed, a list of learning outcomes, and a student review sheet (with answers). The poster provides illustrations of the variety of beach wildlife and a simple key used as an aid in their identification. An additional activity on tidal tracks is also included as a separate "student page." (JN)