I benefit a lot from math challenge. I know the importance of teamwork and meaning of thinking calmly. I learned to do by hand. During the math challenge, I learned a lot of math knowledge and enjoyed working with my teammates. I love the activity very much. We took part in the first math challenge which required us to build a bridge using straws and paper cups, then test its strength. Before that, our team designed seriously and thought a lot. We worked together very well, so finally we got a good result. All of us love this kind game.