Mathematics teaching is the teaching of mathematics activities. Dewey, an American educator, has long put forward: "Let students learn by doing." This teaching idea is embodied in mathematics teaching, that is, "doing mathematics", and "doing mathematics" means using a personal experience to effectively avoid the "indoctrination" of mathematics learning.

Second, the evaluation content:

1, properly organize the mathematics learning content.

(1) Friedenthal, a Dutch mathematics educator, thinks that "the root of mathematics lies in common sense". The new curriculum standard also points out that students' mathematics learning content should be practical, meaningful and challenging.

② These contents should be conducive to students' active mathematical activities such as observation, experiment, guessing, verification, reasoning and communication.

③ Cognitive scores are generally taught in the order of textbooks, from one score to one score 1/2, 1/3, 1/4, etc. And present it directly to students through graphic demonstration.

2. Experience the process of independent exploration.

① Constructivism theory holds that primary school students' mathematics learning is a process of actively constructing knowledge. The process of students' learning mathematics is not passively absorbing the ready-made conclusions in textbooks, but an activity full of rich and vivid thinking, a process of practice and innovation.

② The occurrence of scores involves rich thinking processes. In the above teaching process, teachers always pay attention to let students experience the development process of knowledge, know the true face of knowledge, and let students realize the rich development of knowledge, emotion, attitude and values in "re-invention".

3. Build a development zone for group interaction.

"Doing Mathematics" emphasizes that mathematics learning is a process of group interaction, cooperation and sharing experience. The new curriculum standard also puts forward that effective mathematics learning activities can not only rely on imitation and memory, but also practical practice, independent exploration and cooperative communication are important ways for students to learn mathematics.

Third, the evaluation conclusion:

1. After listening to this lesson, I deeply realized that our mathematics teaching should not only pay attention to what kind of results students get, but also pay attention to whether they have experienced the process of independent exploration.

2. Only by letting students experience the process of practice, inquiry and communication in mathematics can they understand the value and significance of mathematics. Only through "learning by doing" can students get the greatest development.