"Moving" is a child's nature. In the teaching process, only by doing it yourself can we learn more and master it more firmly. I seize this feature and guide students to operate actively. Such as sorting, counting, drawing, posing, spelling, etc. Visualize and concretize some abstract mathematical concepts. Make students understand the source and development of new knowledge in operation and experience the joy of participation, thinking and success. At the same time, in teaching, teachers should advocate the learning mode of independent exploration and group cooperation, constantly create meaningful problem situations and mathematical activities, encourage each student to explore mathematics, think independently, express his own opinions, and be good at listening to other students' different opinions, so as to achieve the purpose of acquiring knowledge and developing ability in group communication and cooperation.

For example, in the activity of "building blocks", the study group made various shapes through cooperation, exchange and discussion. Teachers give encouragement and encouragement, and students sprout innovative consciousness in a relaxed and harmonious atmosphere. In the "random spelling" activity, let students use all kinds of physical objects and three-dimensional models to exert their imagination and spell out what they like. Students spell out the shapes of trains, cannons, tanks, giraffes, robots and other objects in an unrestrained atmosphere. This kind of practical activity better embodies "mathematics comes from the reality of life" and "different people learn different levels of mathematics", which makes students taste the fun of learning and stimulates their thirst for knowledge.

Teaching with information technology and multimedia can improve students' interest in learning.

With the rapid development of modern educational technology, the application of information technology and multimedia is more and more closely related to the process of mathematics teaching. In mathematics teaching, the use of multimedia courseware can skillfully set the scene, let students start, move their eyes and use their brains, and make the creation of problems visual, clear and intuitive. Through the formation of sound, image and painting, students' attention is attracted by its novelty and artistry, so that students can learn in happiness and change "I want to learn" into "I want to learn", which has played a multiplier teaching effect and improved students' interest in learning.