The document discusses the key elements of effective cooperative learning in education. It describes three types of cooperative learning structures used in classrooms: formal cooperative learning involving longer-term group work; informal cooperative learning using temporary discussion groups; and cooperative base groups as long-term heterogeneous teams. It emphasizes that positive interdependence, individual accountability, promotive interaction, appropriate social skills, and group processing are essential for cooperation. Teachers must carefully structure lessons to incorporate these basic elements of cooperation for students to work effectively in learning groups.