Designed for the secondary level, this curriculum guide on labor unions provides an historical background, inquiry-oriented classroom lessons, and resources. The guide contains 17 lessons which examine the structure and daily activities of unions and their members. The first six lessons explore the structure and function of local and national unions as well as how unions can bring about nonviolent change. Other lessons are included on the topics of collective bargaining, contracts, process of negotiation, the shop steward, the grievance, grievance procedure, working on an assembly line, a case study of a worker's grievance, and the relationship of the union to the community. The lessons include objectives, instructional strategies, suggested activities, and, in many cases, actual student readings. The units may be integrated into American history, political science, sociology, and economics courses or may stand alone as a six- to eight-week minicourse. Also included is a list of relevant books, films, and community resources in Pennsylvania. (Author/DE)