Cooperative learning has emerged as a leading classroom instruction approach. Research shows students in cooperative learning groups tend to have higher academic achievement, self-esteem, and social skills compared to individual work. However, merely placing students in groups is not cooperative learning - certain essential elements must be present. These elements include heterogeneous groups, clear learning objectives, positive interdependence, individual accountability, and structured interaction. When implemented correctly with all elements, cooperative learning can result in significant cognitive and social-emotional benefits for students.