Three social studies units contain self-instructional activities for junior high students to learn about exploration and early settlement, discrimination, and the concept of change. In each unit students are informed of specific objectives to be achieved and then they proceed through a series of activities designed to prepare them to accomplish the objectives. In "Exploration and Early Settlement," major objectives are for students to understand how the pattern of exploration and settlement lead to British domination of the United States, and why certain European countries were interested in exploration and settlement. Activities include crossword and acrostic puzzles with names of famous explorers, map study of significant world regions, and short-answer tests on reading content. In "Discrimination," students are assigned particular identities on the basis of traits such as sex, appearance, nationality, and income. Each day, points are taken from or given to students exhibiting certain traits. In order to earn back their lost points, students must complete assignments which require reading articles on various types of discrimination. A bibliography of 50 articles is suggested. "Change" is an interdisciplinary unit involving science experiments, art work, and home economics projects. All three units incorporate group discussion as well as independent research. (AV)