Presumably as long as institutions of higher learning have been in exis tence, educators have attempted to identify ways that students could have more successful educational experiences. Starting in the late 1960s, how ever, the practice of identifying the factors that best predicted academic success in college became more systematic (Astin, 1973; Chickering, 1969; see also Kuh, 2001). Since that time, one factor that has been shown con sistently to predict success in college is student engagement, which Astin (1984/1999) defined as "the amount of physical and psychological energy that the student devotes to the academic experience" (p. 518). In short, students who are more engaged in college, both in and out of the class room, typically have more successful academic experiences than those who are less engaged (Astin, 1993;Pascarella and Terenzini, 1991).Astin (1993) also identified three specific types of student engagement that best predict academic success: time on task, student-student inter actions, and student-faculty interactions. Thus, students who spend more time interacting (both in and out of the classroom) with their course mate rial, other students, and their instructors tend to perform better in their classes and have more positive academic experiences than students who spend less time doing these activities.In addition to conducting research aimed at better understanding the relation between student engagement and academic success, educators have spent considerable time constructing pedagogical practices based on the theory that increasing student engagement produces positive outcomes This chapter describes three approaches to creating classroom-based learning communities: interteaching; team-based learning; and cooperative learning in large, lecture-based courses.