Developed by an interdisciplinary team of social scientists and educators, this program utilizes a modified laboratory approach to investigate causes and effects of human behavior. Though intended for intermediate grades, the units may be used successfully at third and seventh grade levels. The Teacher's Guide, represented here, and a companion volume, the Teacher's Role in Social Science Investigation, contain all information needed for program implementation. The first unit, Learning to Use Social Science, introduces children to the work of social scientists. It presents the basic methodology that is used in subsequent units. After Unit 1, the units may be taught in any sequence. Each of the other six units concentrates on a specific behavioral situation. They are entitled, Discovering Differences; Friendly and Unfriendly Behavior, Being and Becoming; Individuals and Groups; Deciding and Doing; and, Influencing Each Other. All seven units can be taught in one year as the social studies for that year, or one or more units can be incorporated into the existing social studies curriculum. Four to six weeks are required to complete one unit. All units feature behavior specimens for observation by pupils. Components of the program in addition to those mentioned above are: Social Science Resource Book; Project Books; and Records. (Author/JLB)