Cooperative learning adhere in the concept of more heads are better than one which is best seen in the group studying. But students can engage in cooperative learning even without forming a formal study group. Cooperative learning can be achieved even the grouping is just temporary and occur only during class hours.
Remember the times when the teacher group your class into three or four and let the formed groups discuss together about their assigned topics? Your professor is trying to exercise cooperative learning when he/she grouped you.
Cooperative learning is important because this allow students to learn from each other. It encourages you and your classmates to discuss and come up with better findings or solution. One good advantage of cooperative learning is that it helps each member of the group to understand the issue thoroughly thus, the information about the topic is retained better on our brain.