Cooperative learning is an educational approach that organizes classroom activities into academic and social learning experiences. Students work in groups to complete tasks collectively toward academic goals, unlike individual learning which can be competitive. Key aspects of cooperative learning include individual accountability, promotive interaction between group members, teaching interpersonal skills, and group processing. The document then describes a case study where a teacher divides students into groups to plan a hypothetical trip to Paris, with each group researching different trip components like transportation, accommodations, and attractions. The groups then combine their findings to create a comprehensive 5-day itinerary for the trip.