(1) Reality, that is, the process of forming and improving students' knowledge and skills in classroom teaching should be solid, which is not only the basis of classroom teaching objectives, but also the basis of students' creative learning. Therefore, the design of classroom teaching must pay attention to practical results and improve students' quality.

(2) The new textbooks compiled by Beijing Normal University are rich in content, flexible and changeable, and open from the traditional book knowledge to the knowledge in life, such as "observation and measurement" and "statistics" in the first grade and "direction and position" and "guess" in the second grade, so that students can learn vivid mathematics, life mathematics and valuable mathematics and solve practical problems with knowledge.

(4) In the classroom teaching under the new American curriculum concept, students are not only the masters of learning, but also form correct emotions, attitudes and values under the guidance of teachers. Therefore, classroom teaching also fully embodies the humanistic goal of cultivating students' evaluation ability and aesthetic ability.