This collection of outlines, lesson plans, and classroom materials is intended to help teachers and curriculum specialists in teaching students about the contribution of organized labor to the development of the United States. Units suitable for the elementary, middle school, and high school levels are included. The first of the 12 units, which was prepared by an elementary school teacher when the Long Island Railroad was on strike, integrates labor education into a variety of reading and language arts activities. The second selection is an elementary-level pamphlet on the role of unions in the United States that is designed for use in social studies lessons. The third unit includes poems and short stories describing the contributions of various heroes and heroines of the U.S. labor movement. A secondary school curriculum in labor relations and a set of junior high-level lesson plans for infusing labor education into language arts and social studies classes are provided. Guidelines are presented for teaching labor law in Maine. A work literature unit for grades 11-12 that was developed by a teacher in a small Pennsylvania coal-mining town is also presented. Other units in the collection include a history of the American labor movement that was developed by the AFL-CIO's education department and a study of American labor activities that was produced by a New York local of the United Federation of Teachers. A variety of activities, including word puzzles, discussion questions, and songs, can be found in the individual units. (MN)