2, it's too stylized, and some of them always sum up in one class in order to sum up, so I just played around with this link, and I didn't work hard and didn't prepare enough before class. 3, the ideological understanding is not in place, perhaps due to time or personal subjective reasons, very few people even simply omit the class summary, finish the new lesson, consolidate the classroom exercises, and then assign homework and finish class. In view of the above phenomenon, I deeply thought about how to make the summary in math class more practical and effective, and how to make it more exciting. This paper will talk about my views from four aspects: the embarrassing situation of class summary, the importance of class summary, how to improve the practicality and effectiveness of class summary, and the matters needing attention in class summary.
Keywords: junior high school mathematics classroom summary embarrassing situation, importance, effectiveness, practicality
First, the summary of the embarrassing situation in junior high school mathematics classroom
1. Some teachers don't pay enough attention to their own thoughts. In math class, some teachers think that class summary is a dispensable part of a class. In teaching, they often pay more attention to the introduction of new courses, the optimization of teaching process, the strengthening of exercises and other aspects of innovation and change, and rarely pay attention to the summary at the end. Although some teachers also noticed the class summary, they summarized it purely for the sake of summary, some didn't fully play their role, and lost the teaching effect of class summary, and some didn't summarize it at all.
2. The summary form is single and rigid, which is not rich enough. At present, the forms of classroom summary are not diversified and targeted, mainly focusing on traditional teacher summary and students' independent induction or paying equal attention to teachers and students.
3. Teaching time cannot be guaranteed. Classroom summary is generally the last link of classroom teaching, which also makes it a "vulnerable group" in all aspects of classroom teaching. If there is enough time, summarize it, and if there is not enough time, simply remove it so as not to delay the class.
Second, the importance of junior high school mathematics classroom summary.
Xie Zhen, a writer in the Ming Dynasty, once said: "The first sentence is like firecrackers, and the last sentence is like a silver bell, and the sound is clear." This reminds us that we should not only pay attention to the introduction of the class, but also ignore the summary of the class. As the saying goes, "the key to weaving baskets is to close the mouth." A good class summary design can arouse students' thinking climax and produce the effect of making the finishing point, memorable and enlightening wisdom. Classroom summary is an important part of classroom teaching, which can not only help students master knowledge and skills. It can also promote the formation of cognitive structure, the establishment of new knowledge modules, the optimization of problem-solving skills and the refinement of thinking methods.
Someone once said that "mathematics learning is to solve new problems with old knowledge, so as to master new methods to solve problems", that is, the idea of transformation. Yes, math classroom teaching is "trade-in", which allows students to accumulate in constant summary and reflection. For example, the study of "quadrilateral" in Chapter 20 of Shanghai Science Edition is based on triangles, and the quadrilateral problem is turned into a triangle problem that students are familiar with to explore many problems. For mathematics classroom teaching, classroom summary often plays a vital role. This requires a proper systematization of the knowledge in the textbook, careful preparation of the summary of each section, and a good summary of each section.
Educational psychology tells us that at the end of classroom teaching, students' energy begins to weaken. At this time, students began to get tired and their memory began to decline. Psychological theory also tells us that the end of each class has a recoil effect, that is, "the end of the story is often the easiest to remember." If we can't grasp the end of this period, the previous teaching effect will be greatly reduced, and even there is a danger of giving up all our previous efforts.
Whether the new lesson summary is successful or not is directly related to the consistency of the whole class and the learning state of students. A good new lesson summary can not only draw a perfect picture for the successful development of the classroom, but also stimulate students' interest in learning, maintain students' thinking state, and make students' thinking change from shallow to deep, from in-depth to extensive, and gradually transition to after-school learning situation; A good new lesson summary can also help students understand the knowledge of this lesson, build a bridge between old and new knowledge, review past knowledge with newly learned knowledge, and drive students' interest and desire for future knowledge learning. Let students feel that class summary can help them organize knowledge, grasp key points and break through difficulties; Let class summary improve students' attention and sublimate students' thinking; Let the class summarize and refine ideas, link the past with the future, and stimulate students' thirst for knowledge.
Third, how to improve the effectiveness and practicality of junior high school mathematics classroom summary.
A good math lesson summary should be a summary and generalization of the knowledge of this lesson, not a simple summary and repetition of the teaching content; It is a high generalization of law rather than a simple generalization; It is the strengthening of mathematical thought and the optimization of mathematical methods; It is based on students' learning expectations, not another 45 minutes. How to realize the importance of class summary, how to strive for the effectiveness and practicability of class summary and give full play to its due role, we should actively explore and pursue. According to my own classroom teaching experience and observation, combined with the guidance of experts and professors, the author summarizes the following effective forms of classroom summary:
(the finishing touch is a summary of the class.
This is the most commonly used method for our teacher to summarize in class. Teachers use a few minutes before the end of a class to briefly summarize the learning content of this class, which not only makes students recall the content of this class, helps them sort out their knowledge, clarifies the connections and differences between old and new knowledge, deepens their understanding and mastery of knowledge, but also highlights the important and difficult points of teaching, promotes the establishment and perfection of their cognitive structure, thus improving students' ability to solve problems with knowledge.
According to the different teaching contents, teachers can take different forms when summarizing, mainly in the following ways:
1, ask questions