The traditional teaching method is to teach a knowledge point directly to students, and then arrange several examples, one book at a time, ignoring the excavation of teaching thinking methods and the cultivation of thinking ability. Therefore, in the teaching process, we should adhere to the heuristic method and attach importance to the development of students' thinking ability in acquiring and applying knowledge. We should try our best to combine mathematics content to create suspense, stimulate students' thinking, and let students break through the conventional thinking mode and expand their thinking angle. For example, before explaining the theorem of triangle interior angle, let students draw several triangles on paper at will, and then measure the degrees of the three interior angles with a protractor. Question: 1. What is the sum of the internal angles of each triangle? 2. What is the angle of 180 that we have learned? How to turn a divergent angle into a right angle? 3. How many proofs are there for this theorem? Which method is the best? 4. What are the steps to prove the theorem? Through the guidance and instruction of teachers, students can sum up the internal angles of triangles and the contents of theorems, so it is easier to get a variety of proof methods. It can be seen that "parallel lines pass through a vertex of a triangle and lead to the opposite side" is simpler than the proof method in textbooks.
Second, create a situation to optimize junior high school mathematics classroom teaching
In classroom teaching, teachers should create appropriate situations according to the teaching content, stimulate students' learning enthusiasm, mobilize students' learning enthusiasm, tap students' potential, encourage students to innovate and practice boldly, and make students want to learn mathematics.
1. Create a "suspense" situation to stimulate students to think positively. For example, when I was talking about Pythagorean Theorem, I first showed my students a picture of an international mathematics conference held in Beijing in 2002. Question: There is a pattern in the picture. What is its meaning? Why did you choose it as the emblem of this conference? Students are eager to know why, so they will seriously think and explore with this suspense, and their academic performance has been greatly improved and the learning effect is better.
2. Create "interesting" situations to guide students to be willing to think. Teachers can create lively and interesting teaching situations such as games, scientific and technological activities and competitions. Based on the scientific, interesting, educational and entertaining teaching content, it can stimulate students' interest in learning, mobilize students' intellectual factors, and cultivate students' ability to analyze information, make decisions and make overall arrangements for various resources.
3. Create a "happy" situation and encourage students to think effectively. For example, when talking about "letters represent numbers", I told my students that the future of the motherland needs us to design and build, so let's be "little designers" together. Exhibition topic "Little Designer": In order to beautify our campus environment, the school decided to have a length and width on campus. a、b？ Design a flower bed in a rectangular open space. The shape of the flower bed can be a combination of rectangle and circle. Please give your design plan. Students give full play to their imagination, boldly conceive and skillfully create, draw a variety of combination patterns, and take the initiative to go to the podium to exchange their works on the physical projector.
Third, improve classroom management and optimize junior high school mathematics classroom teaching.
Classroom management refers to a series of activities taken by teachers to encourage students to cooperate in classroom teaching. Management behavior should be regarded as the center of teaching function and indispensable to the realization of classroom teaching objectives and tasks? Yes, the process of mathematics teaching is not only a cognitive process, but also an emotional activity process. They complement each other and promote each other. As far as classroom teaching is concerned, from the moment the bell rings, teachers should immediately adjust themselves to the best state, appear in front of students with full spirit and high emotions, with a kind but not too casual expression, serious but not too nervous, and create a relaxed, rigorous, comfortable and tense classroom atmosphere.
In practice, I found that many experienced teachers are also very good at and attach importance to the use of nonverbal behaviors, such as leaning forward, staring and making eye contact, nodding and smiling affirmatively. Through the investigation, I found that most students have a good impression on teachers who are always smiling, holding books, standing among students and talking at close range, because in their view, such teachers are warm and friendly, easy to communicate and like children.
In the process of classroom teaching, it is inevitable to be influenced by students' bad behavior. How to deal with it properly is not only related to the successful completion of teaching tasks, but also reflects the management ability and quality cultivation of teachers. At the same time, it should be emphasized that teachers expect positive behavior, not negative bad behavior. Teachers' criticism should also try to avoid "wave effect". Too harsh criticism will make students lose respect for teachers, produce dissatisfaction and fear, and thus cannot attend classes effectively.
Fourthly, using multimedia education technology to optimize junior high school mathematics classroom teaching.
Multimedia teaching is a modern teaching method that uses the media such as words, objects, images and sounds to transmit information to students. Multimedia teaching principle is a teaching method based on computer, TV, video, projection, slides and other audio-visual media and traditional teaching media such as blackboard, wall chart, experiment and model. Using multimedia technology to assist teaching will greatly enrich the means and forms of expression in classroom teaching.
The application of multimedia teaching technology has largely solved the difficulties in traditional teaching. Vivid pictures, concise explanations, pleasant music and timely and effective feedback can enable students to maintain a strong interest in learning, arouse their enthusiasm, attract long-term attention, and participate in classroom teaching with a relaxed and happy mood, thus realizing the transformation from "I want to learn" to "I want to learn".
The reappearance of the process in multimedia teaching can easily solve the problem and achieve the purpose of highlighting the key points and breaking through the difficulties? Yes In mathematics, concepts are often abstract and difficult for students, which is a difficult point in mathematics teaching. By using computers, some concepts can be visualized, making knowledge simple and easy for students to accept.
In short, the classroom is the main place for students to acquire knowledge. Over the past few years, I have used various effective teaching methods in mathematics class and optimized classroom teaching. In the process of implementing quality education in an all-round way, mathematics teachers should establish new teaching concepts, explore new ideas, methods and models of mathematics teaching, optimize mathematics classroom teaching, make every student like mathematics and improve their basic quality of learning mathematics.