More reflection, more time on task, deeper understanding, better attitudes toward math.
Students are more willing to try to figure things out.
They seem less passive. I m particularly pleased by how some weaker students are animated in talking about mathematics while using cooperative learning. This realization has a positive effort on self-confidence. They learn that different people have different strengths and contributions. I think their willingness to press on with a problem in a group versus an individual has helped them see that mathematics can be done by them but that sometimes it does take work, perseverance, and talking with others to find new points of view.