How to build an efficient classroom of primary school mathematics 1 Preview effectively and explore new knowledge by self-study.
Ancient Chinese: Everything is established in advance, and it is abolished if it is not foreseen. ? For learning, it is very important to cultivate the ability of math preview. Preview is the first step for students to accept classroom teaching. With a good habit of preview before class, students can play their initiative and creativity in learning, better cooperate with classroom teaching and improve the quality of classroom teaching. Preview is the knowledge that students learn by themselves first, and it is a crutch to help students explore new knowledge. Preview is mainly to cultivate students' ability to acquire knowledge independently. The level of preview ability directly affects the level of classroom efficiency. To improve classroom efficiency, pre-class preparation must be in place. So before class, I will give students preview questions to improve the quality of classroom teaching and pave the way for college classes.
2. Novel introduction, stimulating thinking with interest.
The great scientist Einstein said: Interest is the best teacher. Only when students have a strong interest in what they have learned can they love learning, enjoy learning, learn learning well and be good at learning, thus increasing their knowledge and talents. Therefore, classroom teaching should pay attention to the art of introduction. When introducing new classes, I often use methods such as performing games, making up stories, creating suspense and creating scenes. , make students full of interest and stimulate their strong desire for knowledge. For example: I am teaching? Least common multiple? The teaching situation is created as follows: (Courseware presentation) Xiaoming is going to beautiful Suzhou this summer vacation. Because of this, you can not only enjoy the beautiful scenery of Suzhou, but also visit your aunt who lives there. So he called his aunt and said, I want to work for three days in a row and take a day off. ? Uncle said: I want to work for five days in a row and take a day off. ? Xiaoming's family decided to take advantage of his aunt and uncle's rest day to visit them and enjoy a fresh and delicious meal? Reception? . But he didn't know when to meet his aunt and uncle at the same time. I think all my classmates are good students who are helpful. Who will help them choose? At the same time, a dialogue between aunt and uncle and an August calendar are printed on the screen. In this way, the first hammer in the classroom hit the students' hearts, aroused the sparks of their thinking, attracted the students as firmly as a magnet, stimulated their interest in learning from the beginning, attracted their attention, and produced the appeal of eager to hear. Want me to learn? Become? I want to learn? .
3. Pay attention to practice and cultivate innovative consciousness through operation.
Primary school students' thinking is mainly concrete, some creations come from intuitive thinking, and sometimes they are whimsical, which produces sparks of innovation, while more ideas are inspired by warm interactive atmosphere and mutual discussion. I consciously cultivate students' spirit of mutual discussion and cooperation in teaching. Give students as many practical opportunities as possible, and really let students operate. Let new knowledge come into being in students' operation, and let innovative consciousness sprout in operation. I am teaching? Calculation of triangle area? First, let students recall and explore the calculation method of parallelogram area, so as to explore the calculation method of triangle area according to knowledge transfer; Then, let the students take out the learning tools prepared before class in groups, and calculate the area of the triangle by spelling, folding, cutting and transforming them into learned figures. In the practical activities of operation, observation and discussion, students learn from the area of parallelogram = bottom? High, get the area of the triangle = bottom? Tall? 2。 Operation can deepen the understanding of why in the formula. Divided by 2? The truth. By letting students operate, think and talk, the derivation of the formula for calculating the triangle area is a complete success. This kind of operation satisfies students' desire for knowledge and expression, helps to tap students' potential innovation potential, and speeds up the process of students' transition from image thinking to logical thinking, which not only implements efficient classroom, but also cultivates students' innovation consciousness.
4. Carefully design exercises to develop thinking through practice.
Reasonable practice is a routine practice for students to learn mathematics and develop their thinking, and it is also a window for information exchange between teachers and students. I think it is difficult for every student to concentrate from the first minute to the last minute of class. But how can you be efficient for forty minutes if you can't concentrate in class? To solve this contradiction and improve classroom efficiency, we must design some classic exercises.
According to the age characteristics of students, I often design some? Happy competition? 、? Win ABC? 、? Climb the peak bravely? Waiting for competition practice. The same calculation exercise has different effects in different situations. Students in places like this? Entertainment? Good problem-solving atmosphere, high interest in learning, fast problem-solving speed and strong consolidation. For example, I designed it when I was teaching the first grade "Looking for the Law"? Picking the fruit of wisdom? This kind of game. Arrange each exercise in each wisdom fruit. Every time a student does a problem correctly, the fruit of wisdom will fall and be distributed to everyone, which fully mobilizes the enthusiasm of the students and makes them taste the happiness of success. Practice like this avoids the distraction caused by repeated mechanical practice, and enables students to consolidate what they have learned unconsciously and make some changes. Want me to practice? For what? I want to practice? , more fun to practice.
5. Pay attention to summing up and broaden your thinking by being active.
The final stage of classroom teaching is an integral part of the whole classroom teaching process, and it is an important link to systematize, organize and network knowledge, so as to deepen the understanding of knowledge and reduce the memory burden. If a fascinating beginning is half the battle, then the finishing touch will consolidate the success. Therefore, class summary can aim at the content or summary of this class, or set suspense, or expand and extend, or play games, so as to expand students' thinking and improve their cognitive ability. The end of the class is an extension of a knowledge point: what is the end? Question mark? No? Period? .
In teaching, I pay attention to extending my interest in exploring mathematical knowledge to my feelings about mathematical culture, so that they can realize the mystery of mathematics and the greatness of mathematicians in past dynasties. After I finished teaching, I assigned extracurricular reading tasks? Before the invention of clocks and watches a long time ago, how did people express time, so as to guide students to read more extensively in mathematics?
In short, to build an efficient classroom teaching of primary school mathematics, we must base ourselves on students' cognitive development level and existing knowledge and experience, create vivid situations, and attach importance to students' individual thinking performance. In the classroom, every student should grow up independently, everyone should participate, and everyone should make progress, so that the classroom can flash the most real vitality, full of harmony and warmth between teachers and students, and make a harmonious and efficient classroom a brand-new highlight of education and teaching.