Cultivating innovative talents is the glorious mission of school education endowed by history. Then, how to combine the characteristics of primary school mathematics to cultivate students' innovative spirit? First, update educational concepts, emancipate educational thoughts and set an innovative example. The State Council Central Committee's Decision on Deepening Education Reform and Promoting Quality Education in an All-round Way points out that cultivating students' innovative spirit and practical ability is the key point of promoting quality education in an all-round way. Therefore, we must re-understand the responsibilities and functions of teachers and establish a student-oriented educational concept. In the teaching process, teachers should have students in mind, adhere to heuristic and discussion teaching, create teaching situations with students as the main body, design teaching processes, consider teaching links and use teaching methods to truly serve students' learning, teachers' explanation and students' development. At the same time, to emancipate educational thoughts and open up teaching space, we should not only open up students' thinking space in the teaching process, but also open up classroom teaching space in the teaching process, because "creativity cannot be taught." The so-called creative teaching is to let students really have the opportunity to be encouraged to expand and express their ideas, so as to develop their creative talents. " (Bernard) This requires teachers to downplay teachers' performances in the teaching process, strengthen students' performances, and let students give full play to their abilities, instead of teachers monopolizing the podium and performing alone. Teachers' success should be reflected by students' success. As a teacher, you should also appear in front of students as an innovator, because teachers are role models for students to learn. Teachers' manners, learning attitudes, working methods and ways of thinking have an imperceptible influence on students all the time. Therefore, teachers should have a sense of innovation, which requires teachers to arm themselves with updated concepts and knowledge technology, constantly acquire new knowledge, accept new ideas, learn new experiences, and enlighten students with new ideas and knowledge. In this way, with the help of teaching materials, we can carefully organize the teaching content, design the teaching links, conceive the teaching process, follow the lead, ignite the students' innovation sparks and stimulate their innovation consciousness. Second, create an innovative atmosphere, give innovation time and teach innovative methods. To cultivate students' innovative spirit, we must have a relaxed environment and a harmonious and pleasant atmosphere. Let students feel that they are completely free in teaching activities and are indeed the masters of learning, which requires our teachers to care, love, trust, respect, motivate and activate their brain cells, so that their innovative potential can be fully developed. At the same time, give them some time to innovate, let them read independently, think independently, discuss with each other, question, operate, observe and do problems. The most important thing is to teach innovative methods, because knowledge is the foundation of innovation and methods are the bridge of ability. To cultivate students' innovative consciousness, we must help them master some basic innovative methods through teachers' demonstration and students' exploration and practice. In the teaching process, teachers should always use imagination, association, seeking common ground, divergence, rebellion, analogy, induction and deduction to teach students to innovate. Third, hold the classroom position and increase innovation. (1) Re-creating teaching materials. Textbooks are carriers to enlighten students and cultivate their abilities. Our teaching should be faithful to textbooks, but we should not stick to textbooks. According to the characteristics of teaching materials and students' reality, we should flexibly recreate the teaching materials, set problems for students to solve, give students time to think, create suspense for students to explore, and give students opportunities to develop, compete and create. (2) Reforming teaching methods. Constantly reforming teaching methods is the key to improve the quality of classroom teaching, and it is also the eternal theme of teaching innovation. Everyone is a creative person, and every day is a time to create. Every link and step of classroom teaching contains creative fire that can be ignited everywhere. As long as you are brave in innovation, you can ignite the innovation flame of "learning" with the innovation fire of "teaching". 1, cleverly set the lead-in to stimulate students' curiosity. Whether the introduction is vivid, intuitive and interesting will directly affect the teaching effect of a class. Successful lead-in should be interesting and attractive, which can make students enter the psychological preparation state and teaching situation actively and quickly, and stimulate their desire to explore new knowledge. Therefore, we should make good use of the limited time, set the introduction appropriately, vividly, intuitively and interestingly, and introduce students into the teaching activities carefully designed by teachers to prepare for exploring new knowledge. For example, in the teaching of "Understanding Time and Minutes", a lead was designed: As soon as class started, the teacher said to the students with an alarm clock, "Listen! Who is urging us to get up? " At this time, the students were so absorbed that even the most active students were staring at the teacher's every move. At this time, the teacher turned on the alarm clock switch, and the alarm clock issued "Get up quickly! Get up! " The alarm clock rang, and the students raised their hands to answer the questions raised by the teacher just now. The teacher went on to say, "We all have time to work and study. Would you like to be the little masters of time? " The students all replied, "Yes!" At this time, the teacher introduced a new lesson. This arrangement of lead can stimulate students' strong desire to be "masters of time" and create the best psychological state for exploring new knowledge. 2. Be persuasive, ask questions carefully and activate students' thinking. Careful questioning can not only guide students' thinking, but also stimulate students' interest in learning new knowledge and activate their thinking. In the teaching process, we should adapt to students' requirements, carefully design classroom questions, arouse students' thinking and controversy, and make them have strong psychological desire, unique opinions and bold decisions to explore the process of knowledge development. For example, when teaching the greatest common divisor, I asked a question, "What does' public' mean?" ? At least a few can be called public. What do you think' common divisor' is? What is the greatest common divisor? "Through a series of questions, let students sum up the concepts of common divisor and greatest common divisor, and let them feel the joy of success. 3. Pay attention to operation, practice actively and activate students' thinking. People's knowledge comes from practice, and their ability is gradually honed through practice. The only way to teach students to observe purposefully, planned and orderly is to let them observe and experiment independently. For example, when teaching "stability of triangle", please ask students to use three pieces of wood, screws and other tool sets by themselves first.