1. With the help of the physical and chemical tools of the scientific system, abstract and profound mathematics is turned into a hands-on game by listening, taking, spelling, posing, inserting, combining and dividing, so that children can feel the fun of mathematics in the game. 2. Completely realize the role exchange between teachers and students. Teachers transform from actors to directors, children transform from audiences to actors, and children become talented performers, swimming in the halls of mathematics. 3. Pay attention to cultivating children's independent thinking ability and exploration spirit, let children explore and discover the inherent laws of mathematics, stimulate children's enthusiasm and initiative in thinking, and create unlimited potential for children. 4. Flexible and diverse teaching methods and scientific and orderly arrangement of teaching materials lay a solid foundation for children to enter primary school and even lifelong learning.