Carrying out "efficient classroom" can be summed up as two reductions and two improvements, that is, reducing the teaching burden of teachers, reducing the academic burden of students, improving the teaching efficiency of teachers and improving the learning efficiency of students. Efficient classroom embodies people-oriented, gives full play to students' enthusiasm and initiative, and makes students become the real masters of the classroom. Then, how to build an efficient classroom is a problem that every teacher is pursuing. In the usual teaching and reflection, I personally think that efficient classroom is to require 40 minutes of quality, so that students can learn more knowledge with higher interest in a limited time. It can be said that efficient classroom teaching is the goal of our classroom teaching and pragmatism is the means of classroom teaching. To realize efficient math class, we should do the following work well.

1. Effective preparation before class is a prerequisite.

We know that the classroom without default is laissez-faire, chaotic and inevitably inefficient. To be efficient for 40 minutes, it is very important to make adequate preparation before class. First of all, we should study the new curriculum standard seriously. According to the physical and mental characteristics of students of different ages, the new curriculum standard has made scientific and specific provisions on the teaching objectives of different classes. This requires us to study the standards carefully. When setting teaching objectives, we should strictly follow the requirements of standards. First of all, the orientation of teaching objectives should be moderate and difficult. Just like playing basketball, the basket is too high, and no matter how hard you work, students will naturally lose confidence. If the basket is too low, students will easily plunge into the basket, and of course there will be no joy in overcoming difficulties. Test paper test. Secondly, teachers should fully consider the unity of three-dimensional goals when formulating teaching goals. Knowledge and skills, emotional attitudes and values, processes and methods are equally important and indispensable. Thirdly, the formulation of teaching objectives should also consider three levels: good, medium and poor.

Efficiency is based on effectiveness, and efficient classroom begins with effective lesson preparation. Many teachers around us have been teaching for many years. They think they know everything without preparing lessons or even reading books. When they are in class, they can do whatever they want, and they have no goal at all. We can imagine the result. In fact, the students we meet every year are different and the problems we encounter are different. Therefore, preparing lessons is very important for everyone. When preparing lessons, we should prepare teaching materials, students and teaching methods, and prepare several sets of different teaching materials for comparison, so as to choose and determine a more suitable teaching content and method for students. When preparing lessons, we should make unit lesson plans, determine the teaching objectives, key points and difficulties, what teaching AIDS to use and what experiments to do, so as to avoid the blindness and randomness of teaching and make the teaching direction more clear and specific. We should fully understand students' actual and ideological understanding, guide students to find out what they have learned related to the new course through preview, and do a good job in reviewing and consolidating. Only in this way can we be targeted. The more thorough the lesson preparation, the more detailed and scientific the lesson plan design, the less the "loss" in the classroom and the higher the efficiency of classroom teaching.

2. Need effective methods to implement.

Efficient classroom needs "ways and means"! Education is "doing" rather than "saying". Whether it is Yang Si's "learning before teaching as classroom training", Dong Lu's lecture due to "taking the exam", and the appearance of efficient classroom marked by Du Langkou, they are all looking for and exploring ways and means of efficient classroom. Their exploration and practice made us suddenly realize that the simplest educational truth is actually not complicated. The key is to find a suitable starting point for our classroom teaching. The classroom teaching mode based on "tutorial system" focuses on the cultivation of students' ability and the "process" of learning. The practice of the tutorial system plan is: Paper test. One teacher writes first, all teachers participate, express their opinions, and after full deliberation and discussion, an understanding is reached. The reference of the paper comes from the original coordinates. The final version is finalized by the main lesson preparers. Then the teachers of each class supplement the cases according to the actual situation of the class and implement them in classroom teaching. The tutoring plan is distributed to students before class, and students have a general understanding of learning objectives and learning contents, which provides guidance for teachers to implement target teaching in student-centered autonomous classrooms and practical tools for implementing group teaching. It also prepares question materials for students' autonomous learning and cooperative learning in autonomous classroom. The exercises should be carefully designed according to the students' situation. Only by using exercises flexibly and correctly can we improve teaching efficiency and get twice the result with half the effort

In practice, we should optimize teaching methods. Teachers should first create a democratic, relaxed and harmonious teaching atmosphere. Teachers should treat students with sincere eyes, educate students with cordial tone and guide students with trusting attitude. Only in an equal and relaxed atmosphere can students study happily and get good grades. Secondly, teachers should have a sunny attitude. They should walk into the classroom with a smile every day, have a sense of humor in class, and students like you. Your classroom teaching is half successful. Only by giving lessons to students, paying attention to their activities and lives, cultivating their desire for expression and sense of competition, and bringing passion to students with classroom body language, students will feel that attending classes is a kind of enjoyment.

3. Create an effective classroom assessment

Establishing an effective evaluation system, promoting students' all-round development and teachers' continuous progress, strengthening teachers' self-reflection and improving classroom teaching behavior are another breakthrough point to build an efficient classroom. Teachers should first give full trust and affirmation to students who dare to ask questions and express different opinions, so as to cultivate students' scientific attitude of daring to explore and question. Teachers should treat objections with an open mind, be good at tapping the bright spots and seize the opportunity of immediate evaluation. Use accurate and standardized language and appropriate action expressions for classroom evaluation. While paying attention to students' evaluation, teachers should actively reflect on their teaching behavior after class, constantly improve their teaching behavior, create an atmosphere of cooperative research, and hand over the evaluation criteria to students to listen to their feelings and opinions on subject teaching. Not only can they.