Slavin (slavin. 1990:.3) mentioned learning as a collaborative learning requires students to learn, share responsibility for group sharing.The class as a group or as a team there.
Lottery win (Slavin. 1990: 3) mentioned collaboration, learning how to learn that students must learn jointly responsible for the work of the group. Learning in groups or teams themselves.
The terrorist attacks (Slavin. 1990:3), he said to the Learning, co-operate with one another, it is the learning that students need to learn about sharing responsibility for the group.The study is a group or a team.