I have taken part in several Maths Challenges which are given by Kevin. In these activities, we once built up a plastic bridge, a tower and so on. We enjoyed ourselves when we worked together. In my opinion, these activities are meaningful. And I have learned how to work with each other better. We may face a lot of difficulties during we managed the challenges, but we did not give up. We helped with each other and finally solved them. We were happy and gained a lot.