This guide provides teachers with materials and resources to develop basic legal concepts within the existing social studies curriculum. Drawing on the descriptions of sociology, philosophy, political science, and history, legal concepts and processes are studied in a societal context. The conceptual approach to law as a social institution uses the inquiry method to consider several important aspects of the law: What is the nature of law? What are its social functions? What are its limits? How does law work? Four teaching modules, each of which deals with a basic concept of the legal system, are included. The core of each module is contained in a statement of understandings to be gained through the study. An explanation for the teacher follows the statement, providing a background of legal knowledge and delineating the importance of each understanding. Objectives, general questions useful in reaching the understanding, and suggestions for use of visuals are listed. Classroom strategies are described and resources are noted. The bibliography includes written source materials, films and filmstrips, with information concerning sources for purchasing or renting. (Author/SHM)