More concept learning. Some degree of being more critical of own and others thinking processes and correctness of solutions has developed. Seems to enhance their depth of understanding. There seems to be an openness to learning Mathematics. Students gain the experience of dealing with real world projects, report writing and oral presentation.
Some students make good friends from the class.
Students tend to become more open to talk about their attempts of solving problems rather than having the feeling that they either know what to do or not. Mathematics is more alive and connected with the student's life. I think generally it has improved their problem-solving abilities. It has convinced them that all problems are difficult at first, but through discussions with others and taking different approaches they could make gradual progress toward the solution to a problem. For groups that work well together, the assignments seem to be more enjoyable and kept the students working at them more regularly.