The Teaching Structural Geology in the 21st Century website from Carleton College brings together lesson plans, interactive modules, and in-class evaluations that help college professors work more effectively with their students. This recent addition to the site comes from H. Robert Burger of Smith College. This activity is based on a series of Quick Time movies and color digital photographs, and the students will first view movies to "gain awareness of the basic evolution of normal fault systems." After this, students are asked to investigate the formation and evolution of a fault system for a particular structural system. Users will find a bit of information on the audience for the activity, a set of goals, the movies, and a description of the activity.