Crustal Evolution Education Project (CEEP) modules were designed to: (1) provide students with the methods and results of continuing investigations into the composition, history, and processes of the earth's crust and the application of this knowledge to man's activities and (2) to be used by teachers with little or no previous background in the modern theories of sea-floor spreading, continental drift, and plate tectonics. Each module consists of two booklets: a teacher's guide and student investigation. The teacher's guide contains all of the information present in the student investigation booklet as well as: (1) a general introduction; (2) prerequisite student background; (3) objectives; (4) list of required materials; (5) background information; (6) suggested approach; (7) procedure, recommending two-three 45-minute class periods required; (8) summary questions (with answers); (9) extension activities; and (10) list of references. Best used after concepts of continental drift, sea-floor spreading, and plate tectonics are introduced, students study rocks found in areas thought to be former portions of the proto-continent of Gondwanaland, learning what rocks reveal about the environment, correlating rock units using fossil evidence, using superposition principle to find relative ages of rock units, and describing evidence supporting theory that continents were once joined. (Author/JN)