First of all, participating in extracurricular activities can consolidate and deepen the understanding of the knowledge learned in class. We know that people's activities of acquiring new knowledge are always carried out on the basis of the original knowledge, from known to unknown, from less to more. Participating in extracurricular study groups often involves some knowledge that has not been learned in class, but is related to what has been learned in class. In this case, the tutor of the extracurricular study group will lead us to review what we have learned in class, or remind us to go home and review a chapter, a section and a theorem in the textbook. Then learn the new knowledge that the extracurricular group will talk about. When you use the theorem learned in class to understand a new theorem, when you use the knowledge learned in class to explore a new field of knowledge, and when you connect the old knowledge with the new knowledge, you will certainly get a double harvest in your study of lesson 67, not only learning new knowledge and broadening your knowledge, but also deepening your understanding and mastering the knowledge learned in class. Especially the extracurricular group, attaches great importance to cultivating students' practical ability. Students in computer group should learn to use "doll machine", students in household appliances group should learn simple maintenance skills, students in model airplane group should learn to make various airplane models, and students in chemistry group should not only try it out, but also make soap, soda and other daily necessities. Practical activities are carried out under the guidance of theory, which is an activity to transform learned knowledge into ability. In the hands-on process, a lot of knowledge learned in class will come in handy. Combining the theory learned in books with the hands-on practice of extracurricular groups, the knowledge learned in class can be understood deeper and mastered more firmly, which is much better than the learning effect of just learning without using it. After-school study groups engage in "small inventions", so it is even more necessary to make comprehensive use of what they have learned in class. In a small invention, you should apply what you have learned in several courses, such as the lever principle in physics, the redox reaction in chemistry and the sum of the angles of triangles in mathematics, so that you can apply what you have learned. Second, participating in extracurricular activities can help you understand the new knowledge that the teacher said in class and improve the quality of classroom learning. Have you noticed that when a teacher talks about the key points and difficulties of a text or a chapter in class, in addition to guiding students to recall the old knowledge they have learned, they often inspire students to contact some knowledge they have learned after class, or associate them with a familiar phenomenon in life. At this time, students who actively participate in extracurricular activities are very active. According to the idea suggested by the teacher, these students' brain machines started: what they learned in extracurricular groups, or new scientific and technological achievements told by their tutors, or a painting they saw when they visited an art exhibition, or the knowledge they learned when they made small inventions, or the new products they learned when they went to the factory to take part in labor, or the great changes they saw in the countryside when they went to the countryside for social investigation, or the natural scenery they observed when they went hiking in the suburbs. One by one, one by one, memories poured out. Deeply understand the artistic conception of a poem explained by the teacher, or confirm a theorem told by the teacher, or vividly understand the abstract truth told by the teacher. Classroom discussion, with opinions, arguments, wide knowledge and persuasiveness. Even put forward different opinions on a certain point that the teacher said, which is still inspiring to the teacher. Those students who don't participate in extracurricular activities are very passive at this time. They lack extracurricular knowledge, live a narrow life, and lack the material for common thinking in their minds, so they just sit back and wait. It's not surprising that a clever woman can't cook without rice! There is another reason why students who actively participate in extracurricular activities have high quality of classroom learning. In the colorful extracurricular activities, I not only learned a lot of knowledge, but also stored many questions, and there are many "why" in my mind that I haven't figured out yet. In this way, we hope to solve these problems through classroom learning. Therefore, when the teacher talks about 69 pieces of knowledge related to a difficult problem, he is very sensitive, listens carefully and thinks about his own problems while listening. As a result, the teacher learned new knowledge quickly and understood it deeply, and the problem was solved. An educator put it well: a broad knowledge background is necessary to make intelligence develop well. In this sense, participating in extracurricular activities is of great benefit to classroom learning. Third, actively participating in extracurricular activities can cultivate strong ability to analyze and solve problems. I don't know if you have heard of the phrase "high scores and low abilities" to evaluate students' learning quality? This is about some students with high test scores and low ability to analyze and solve problems. The original reason is that they "study hard", learn by rote, eat them alive, and their minds are full of "dead knowledge". Let him start making "small inventions", no, his hands-on ability is not strong; Let him analyze the ideological content and writing characteristics of an article by himself, no, his self-study ability is not strong; Let him explain a natural phenomenon with what he has learned from books, but he can't say it and his observation ability is not strong; Let him use some mathematical theorems to calculate a difficult problem, which he can't do, and his comprehensive analysis ability is not strong. This is "high scores and low abilities". How can we learn our lessons well and adapt to the increasingly difficult learning tasks? How can we change this "low energy" situation? An important experience is to actively participate in extracurricular activities, strengthen extracurricular practical activities, and strive to combine the knowledge learned in class with extracurricular learning activities to cultivate strong ability to analyze and solve problems. When students study their lessons in class, they should not only learn knowledge, but also master their abilities. Teachers attach great importance to the cultivation of students' ability, but the cultivation of students' ability in class is limited, so the world of extracurricular activities is bigger and there are more opportunities to cultivate students' ability than in class. Especially in some practical classes, it is necessary to cultivate practical ability in extracurricular activities. A middle school student should not only have solid basic knowledge, but also have strong observation ability, imagination, thinking ability, self-study ability and practical ability. In a word, he has a strong ability to analyze and solve problems. Then, you can learn actively, and you can improve the quality of classroom learning. This is not only good for doing well in classroom study now, but also good for entering senior grades or taking part in work in the future.

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