All the math teachers in our school held a competition with five math classes, which made me deeply feel the life and art of math classroom teaching in primary schools. His feelings are as follows: 1. In class, teachers can create interesting learning scenes according to the characteristics of primary school students to stimulate their interest in learning. Teacher Niu Yingli, for example, can make good use of the psychological characteristics such as curiosity, activism and thirst for knowledge of junior two students, closely combine the theme map of this lesson, create a learning situation that makes students feel real, novel and interesting, and stimulate their patriotic thoughts. The ancients said: "Learning is expensive and doubtful, small doubts make small progress, and big doubts make great progress." Teacher Niu asked questions and set suspense, such as: "Who can use the pen addition we learned last class to talk about how to do pen subtraction?" Therefore, children actively think, from curiosity to strong thirst for knowledge, and have a keen sense of subjective exploration to realize the synchronous development of teachers and students' psychology in classroom teaching. Set doubts and guide thinking, so that students can devote themselves to learning with enthusiasm. This reflects the cognitive thought that teachers are the guides of teaching, constantly revealing new contradictions in knowledge and allowing students to think and solve problems with mathematical thoughts. 2. In class, the teacher lets students explore ways to solve problems independently. For example, teacher Zhou Ruixia's lesson on vertical calculation of multiplication can help children sum up several algorithms for calculating multiplication. Finally, let children see how to calculate multiplication vertically in an example, and then let them try to practice. By comparing several methods, we can get the simplicity of writing multiplication. It fully embodies the teaching philosophy of "teachers take students as the main body, students are the masters of mathematics learning, and teachers are the organizers, guides and collaborators of mathematics learning". In addition, Mr. Feng Conghui can create realistic life scenes for students from the reality of students' lives, give full play to students' main role, guide students to learn independently and cooperatively, make people learn valuable mathematics, make different people develop differently in mathematics, and embody the teaching concept of the new curriculum. 3. Teachers can make math problems come alive, so as to be as close to students' lives as possible, and let students realize that there is mathematics everywhere in life, and there are truths in life everywhere in mathematics. Strengthen the practicality of mathematics teaching, find the prototype of life for mathematics, and let students experience that "learning mathematics" is not "remembering, memorizing, practicing and testing mathematics", but "doing mathematics". Teaching is always student-centered and teacher-led, giving full play to students' initiative, enthusiasm and initiative, and finally achieving the goal of enabling students to effectively construct the meaning of what they have learned at present. Let students actively acquire knowledge through activities, and combine perceptual practical activities with students' inner feelings and experiences to promote students' healthy growth and better develop their abilities in all aspects. There is also a class of teacher Cui Kaige, which focuses on cultivating children's intelligence. In short, in these math classes, teachers can encounter some simple problems and try to let students solve them through their own words, hands and brains. Teachers should encourage students to try actively, explore problems actively, and adopt teaching modes such as "discussion" and "cooperation" so that every student has the opportunity to participate, think and express his opinions, so that every student can become the master of mathematics learning. These are the directions of my future teaching efforts.