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How can a math teacher arrange a 40-minute class most effectively?
English Voice Observation answers for you: Efficient classroom is a brand-new educational concept, and efficient classroom is the abbreviation of efficient classroom or efficient classroom. The so-called "efficient classroom" is to achieve the best possible teaching effect with the least energy and material input in as little time as possible, that is to say, teachers can enable students to acquire more and deeper knowledge and ability and gain richer experience in a relatively short period of time. If the classroom has a large capacity and many courses, it will definitely be inefficient; If students' interest and good study habits are not improved, it can't be called efficient. How can it be efficient? How can we make effective use of 40 minutes in class?

First, carefully arrange before class.

Preparation before class is one of the most critical links in classroom teaching. A successful class depends to a great extent on the teacher's full preparation, in addition to the factors such as high professional quality, infectious language and rich voice and emotion.

1. Teacher preparation. Don't fight an unprepared battle, as the saying goes, "Know yourself and know yourself, and you will win every battle"! Teachers should prepare lessons in detail. When preparing the outline, we must carefully study and analyze the position and function of this textbook in the whole knowledge system, and make clear the requirements of knowledge, ability and emotion according to the outline. Prepare teaching materials and the teaching resources you need, including the understanding of teaching materials, the use of teaching AIDS, and extracurricular related knowledge. If the teacher blindly follows the book, the students will get bored. Of course, students can't study effectively, so it is very necessary to supplement extracurricular knowledge. There are many teaching methods for preparing lessons, such as lecturing, reading aloud, combining teaching with practice, and cooperative inquiry. Which method to adopt should be combined with students' personal situation, and the teaching method should be determined according to the difficulty of knowledge and students' cognitive level.

2. Student preparation. Bacon said, "Habit is the master of life." It is urgent for students to form the habit of preview. Whether students are fully prepared before class will directly affect the teaching effect. Good preparation before class can make students enter the classroom state in time and make the knowledge coherent. Otherwise, it will seriously affect the classroom efficiency, and even cause a serious separation between teaching and learning, and students will be confused. Do a good job in preview, including reading the text and clearing the obstacles of words; Understand the author, accumulate the common sense of the writer, and grasp the content of the text as a whole.

Second, the class is mainly middle school students.

The new curriculum advocates student-centered classroom teaching process and students' independent inquiry learning. Tao Xingzhi, a famous educator, once said, "I think a good teacher is not teaching, not teaching students, but teaching students to learn." Teachers often talk about how to teach students to learn that it is better to teach people to fish than to teach them to fish. This is not a slogan, but to put it into action. The class must be student-centered and don't preach, even if your language is wonderful. The classroom should be guided by the positive thinking of teachers and students, and get the results with their own personality, instead of teachers forcing students to accept their own views and ideas. Through the practice in recent years, I have summed up my basic classroom model.

Efficient classroom is inseparable from effective cooperation among students. We divide the study group into different grades according to the students' academic achievements, and let the students form a study help group, so that * * * has learning and * * * has progress. 10 before class, send a representative to raise doubts or newly discovered problems in the preparation process of this group, and the teacher will encourage the performance of each group. In this link, there are often ironic problems. This requires the teacher to ask the group to screen and integrate the problems in advance.

After 20-25 minutes of class, the teacher quickly organizes students' questions and determines teaching activities according to his own teaching design. Students' questioning is the core content of classroom teaching and plays an important role in breaking through difficulties. First of all, students will answer, express their opinions and let a hundred flowers blossom. Then the teacher will guide, guide, analyze and explain the students' doubts and related newly discovered problems. During this period, students will be asked to answer as much as possible, and the performance of each group will be evaluated in time, so as to make full use of the competition between groups, maximize the enthusiasm of each student to participate actively, make the classroom wonderful because of interaction, and truly reflect the subjectivity of students and the dominance of teachers.

Finally, in the class of 5 ~ 10 minutes, the students quickly sorted out the knowledge structure and knowledge points of this class. What is the main content of this article, how to write it, what ideas the author has expressed, what feelings the author has expressed, what are the main features, what inspiration you have and so on. , should be quickly sorted out for the teacher to check. Of course, due to time constraints, it is inevitable that the students' summary may not be very comprehensive.

Third, "zero homework" after class.

Try to do "zero homework" after class. If it must be arranged, only assignments that expand students' thinking, guide students to explore and improve students' ability will be arranged. For example, I only assigned a question to the text "I am a person to my country": please talk about the sustainable development strategy of this text in combination with reality.

In short, the core of efficient classroom is efficiency. No matter what mode and method are adopted, there is only one purpose, that is, to enable students to acquire knowledge and improve their ability in a limited period of 40 minutes. More effective teaching models are waiting for us to practice and develop.