The manatee is known for its gentleness and uniqueness and has become a symbol of human concern for endangered species. This guide provides current information on the West Indian manatee as well as strategies for teaching about this endangered animal. While focusing on the manatee, this guide points out the importance of interdependencies within the whole ecosystem with the goal of promoting informed decision-making, responsible behavior, and constructive actions towards the protection of the manatee and its habitat in Florida. The activities included can be adapted to suit the special needs, ages and abilities of different students and are designed for multidisciplinary study areas. Accompanying this guide is a color poster, "Sirenians of the World," depicting the West Indian manatee and four related species. Topics covered include: natural history, habitat, the hydrologic cycle, other sirenian species, marine mammals, problems, manatee mortality, research and conservation, and public awareness. A list of manatee resources, reference books and audio-visual aids is included. (JRH)