This guide was developed as a resource for teachers and students in high schools. Ideally, it will be of major assistance to seniors and their teachers as they explore the possibilities and alternatives open to young people during the years immediately following high school graduation. The three broad goals and objectives of the guide are: 1) to understand the operation of the Selective Service System as it affects the individual and his draft status; 2) to promote rational individual choices about military service from options available under existing laws, regulations, and social conditions, and to become aware of the consequences of the illegal alternatives concerning induction; and, 3) to understand the Selective Service System in both historical and current perspectives. For each specific objective in this document, there is a teachers' guide and, in some cases, an accompanying text. Each teachers' guide contains five sections: specific objective, questions to guide investigation, related activities, resources, and summary activity. This instructional unit is the first attempt to provide secondary school educators with a structured course on Selective Service; a revised version will be published for the 1971-72 school year. (Author/SLD)