The deepening of the new curriculum reform requires teachers to have a brand-new educational concept, and teachers should establish a "student-oriented" educational concept. Establish a completely equal new teacher-student relationship. The teaching process is a process of communication, positive interaction and common development between teachers and students. The role of teachers should be reflected in guiding students to think, finding the connection between current problems and existing knowledge and experience, creating an atmosphere of encouraging exploration and understanding, and providing enlightening discussion modes for students. Teachers should encourage students to express themselves and discuss different answers on the basis of deepening understanding. Students should be guided to share their ideas and re-examine their ideas. Teachers should be good at grasping students' thoughts, constantly guiding students to pay attention to important aspects of problems, and timely revealing novel and meaningful communication examples among students, so as to achieve a harmonious and vivid classroom atmosphere of teacher-student interaction.

Second, math teachers should change their roles.

Students are the masters of mathematics learning, and teachers are the organizers, guides and collaborators of mathematics learning, so the role transformation of mathematics teachers in teaching is particularly important. First of all, teachers renew their ideas and realize the necessity and importance of curriculum reform. Teachers should get rid of the shackles of old educational concepts, update educational concepts, and establish correct views on talents, quality and students. Secondly, the renewal of teachers' knowledge structure, from the perspective of curriculum reform, has added a lot of new knowledge content to the new junior high school mathematics curriculum standards. In order to adapt to teaching, mathematics teachers should first improve their professional theoretical level through self-study, continuing education or some training courses. Mathematics teachers are required to understand the history of mathematics, the educational value of mathematics culture and the application of mathematics in other related disciplines. In other words, math teachers should not only master their own professional knowledge, but also expand their knowledge and have an understanding of interdisciplinary knowledge. With the development of society, the students we face become more complicated, which requires teachers to keep learning psychology and pedagogy and be able to support their teaching work with new educational theories.

Third, the improvement of teachers' teaching ability.

The new contents in the new curriculum reform are number and algebra, space and graphics, statistics and probability, practice and comprehensive application. The main purpose of these contents is to cultivate students' mathematical quality. Teachers are also required to use a brand-new teaching model to teach. Teaching is not only the conclusion of mastering knowledge, but also the process of experiencing knowledge, so that students can master methods and skills and apply them. Teaching is not only to grasp the existing knowledge and conclusions, but also to transfer the learned knowledge to a new situation, that is, to ask students to solve problems creatively. British philosophers believe that knowledge in the human brain can be divided into explicit knowledge and tacit knowledge. Clear knowledge refers to knowledge that can be expressed in words and words. Tacit knowledge refers to knowledge that cannot be expressed by language system. Tacit knowledge is embedded in practical activities, which is situational and individual, and can only be expressed in words, not in words. For example, no matter how rich your swimming knowledge is, but you have never been in the water, you will never learn to swim, because your mind lacks tacit knowledge of swimming, and swimming is learned through swimming practice. This requires mathematics teachers to give up the previous teaching that emphasizes conclusions and ignores processes, so that students can get a way and method corresponding to specific knowledge, that is, as long as they see conditional information, related activities will happen automatically. Therefore, the new curriculum puts special emphasis on process teaching, so that students can participate and experience. Therefore, in the process of mathematics teaching, teachers should fully reveal the thinking process in order to cultivate students' innovative thinking and practical ability. First, fully reveal the formation process of the concept; Make students go through a series of concept formation processes such as comparison, abstraction, generalization, analysis, verification and differentiation, from which they can learn the thinking method of studying problems and putting forward concepts. Secondly, we should fully reveal the discovery process of the conclusion, and let students go through a series of tortuous exploration processes such as inquiry, comparison, induction, guess and test, which can not only let students know the origin of the conclusion, strengthen their understanding and memory of the theorem, but also cultivate their ability to find and ask questions, and lay the foundation for future scientific discovery. Third, fully reveal the thinking and exploration process of problem solving; From the perspective of mathematics education, it doesn't matter whether someone's answer to a mathematical problem is creative or not, but whether it is novel to the problem solver. If teachers want students to learn to solve problems creatively, they must fully expose the process of problem-solving thinking exploration to students in normal teaching, so that students can learn how to solve problems.

Therefore, the most fundamental measure to optimize classroom teaching in the new curriculum reform is to optimize teaching objectives. In strengthening the sense of goal, the design of all aspects of classroom teaching, the choice of teaching methods and the application of modern teaching means (such as audio-visual teaching means) should be carried out closely around the teaching goal, so as to truly realize the transformation of teachers' roles. To achieve teaching goals, there are knowledge goals, ability goals and ideological and emotional goals. We should stick to the given knowledge, strengthen the cultivation of students' ability and ideological and emotional influence, so that the knowledge goal can be realized, the ability goal and the ideological and emotional goal can be realized, which not only improves the classroom efficiency, but also improves the students' comprehensive quality, injects new vitality into our classroom teaching, and thus achieves the purpose of educating people and promoting social progress through the new curriculum reform.