Judging from the time spent doing junior high school math problems, it seems that there are only two or three minor problems, which will not take up too much time; The most difficult step in a big question is to score five or six points, which is equivalent to two small questions. "So in the process of doing the problem, there are primary and secondary points, and it is also cost-effective to get the basic problem right.
From easy to difficult, don't try to solve the big problems of junior high school mathematics at the beginning, and you will get stuck in it and even can't do the basic problems well. In addition, we must strive to do it right once. Because the senior high school entrance examination time is very tight, most children can't leave time to review. Even if you have time to review, you may not be able to see the mistakes.
Class notes
Doing a good job in junior high school mathematics classroom notes mainly starts from the following parts: first, record the examples explained by the classroom teacher and summarize each example. It is necessary to summarize the usage of a knowledge point in the example, the solution of such problems, and some special skills.
Second, record various formulas and deformation formulas. It is a formula or a regular conclusion in itself. Let's call it the second kind of formula or the second kind of theorem. For example, in the chapter of trigonometric function, you need to make clear the source and derivation process of each formula.
Third, for junior high school mathematics concepts, we should record the key points, keywords and deeper understanding emphasized by teachers. Fourth, for theorems, the conditions and usage of theorems should be recorded. Fifth, for the formula, we should record the structural characteristics, deformation characteristics, memory methods, use skills and so on summarized by the teacher.
Important reminder: junior high school math notes don't have to be written down word by word, they must be concise. Write down key points, difficulties, doubts and other contents in a way that suits you, such as phrases, numbers and patterns, and then carefully sort them out after class.
Sort out the wrong problem book
The wrong questions in junior high school mathematics are an effective way of self-summary and improvement. Questions that often make mistakes in each exam or exercise should be recorded in the wrong book, focusing on the "traps" that each question is easy to fall into and the reasons for losing points, as well as summarizing the problem-solving skills and laws of each question. Read more books and remember wrong questions, especially before various exams, to avoid making mistakes again when encountering similar questions.
Learn to summarize
There are many chapters in junior high school mathematics learning, and students should learn to summarize them. Children should review frequently after learning knowledge and summarize at the same time. Summary should also talk about methods. Of course, you can use the traditional method of summarizing in a notebook, but if the handwriting is scribbled, it will cause visual fatigue and it is not easy to find the focus of review.
Here, it is recommended that children summarize by brain diagram, which can not only make thinking visualization, but also systematize knowledge. It is very important for children to clarify the basic concepts of chapters by dragging the brain map and adding new content at any time.