Counter-attack skills of junior high school mathematics 60 to 120.
Take 150 as an example (of course, there are countless areas with full marks of 120, and students can convert them themselves), of which the basic part accounts for about 80 points; The ability part accounts for about 50 points; The difficult part accounts for about 20 points. In order to get high marks, students must master the essentials of scoring and formulate clever strategies.
Second, children whose math scores are always around 70 points must be caused by their poor mastery of math knowledge and lack of careful problem solving. If you want to improve your score quickly, you need to do a good job in the basic part and check your answers carefully, so that you can get at least 75 points in the basic part out of 80 points.
The topics in the basic part are generally set in the first 6 multiple-choice questions, the first 4 fill-in-the-blank questions and the first 3 answer questions. These questions are relatively easy. Candidates can score easily as long as they are careful and don't make mistakes.
Third, in addition to the topics in the basic part, the scores in the ability part are also very heavy. The topic of the ability part mainly examines the flexibility of students' personal thinking. If it's just rote learning, it won't work. This kind of question type is generally expanded by the change of basic question type. Candidates should invest more books and swords in this part of the exercises, train themselves to have good thinking ability, combine systematic review and master typical exercises. The ability part is 40 points, out of 50 points, which I believe is relatively easy.
Fourthly, the last part is the most difficult part. No matter whether your grades are good or bad, you will lose points in the difficult part. Since it is called the difficult part, it is difficult for students to grade this part.
Difficult problems account for a small proportion of the total score, and the methods to solve such problems are much higher than textbooks. It is not easy for students to solve problems through their own summary and thinking. For this part of the topic, there are also some learning skills, that is, students should work harder, reflect more and really master it. If the foundation has not been laid, it is not recommended to stick to the problem, but to be down-to-earth and step by step. In the case of mastering basic knowledge, it is helpful to solve difficult problems by asking students to do more exercises and learn more extracurricular knowledge in their spare time. The question is basically the last one of multiple-choice questions or fill-in-the-blank questions. Some of the last two questions (also known as the finale questions), we "junior high school mathematics" think that it is still possible to get 5 points for the questions with a perfect score of 20.
If students with a solid foundation can't do the last question, they can get about 1 15 in addition to the question, and 5 points in the question can also get the ideal score (120). The following is a detailed explanation of the answering skills of each question type.
Multiple choice
Many students are easy to be careless when doing multiple-choice questions, thus losing points. Problem-solving strategy: read the topic several times to find out what this topic seeks, what is known, and what is the relationship between seeking and knowing. Make it clear before you start to answer the question, and do it carefully. After you finish, check the correctness of the answer.
fill-in-the-blank question
Some fill-in-the-blank questions are similar to multiple-choice questions, and the same problem-solving strategies can be adopted. The basic problem-solving strategy of fill-in-the-blank questions is "correct, reasonable and quick".
answer the question
There are many geometry problems in junior high school math exam that need candidates to think carefully. Pay attention to writing when you do the problem. Many students are easily deducted because of their irregular writing.
So what exactly should we do? How to make good use of exams again and again to improve your math scores? Let's talk about it carefully.
1. Look at the examples from another angle and expand the thinking space.
Those students who understand textbooks and textbook examples at first glance and are confused when doing them must read this article! Many students read books and examples, but they often pass by when they read them, because they often think they know everything when they read them, but they don't understand them thoroughly. So when you look at the example, you should cover up the solution, do it yourself, and look at it when you have finished or can't do it. At this time, you should think about what is different from the solution, what you didn't expect, what you should pay attention to, which method is better, and whether there is another solution. After the above training, my thinking space has expanded and I have a comprehensive view of the problem. If the source of the topic is clear, it will be more beneficial to add a few comments at the back of the topic to explain the "vision" and ingenuity of the topic.
2. Do the test questions carefully and explore the purpose of the test.
The improvement of mathematical ability is inseparable from doing problems. Everyone knows the simple truth that "practice makes perfect". But the problem is not to engage in sea tactics, but to think of many problems through one problem. You should focus on the thinking process of solving problems, find out the significance and role of basic mathematical knowledge and basic mathematical ideas in solving problems, and study various ways to solve the same mathematical problem with different thinking methods. In the process of analyzing and solving problems, you should not only establish the horizontal connection of knowledge, but also develop the habit of thinking from multiple angles.
Instead of rushing in a class and sweating twenty or thirty repetitive questions, it is better to master a typical problem thoroughly. For example, deeply understand the various connotations of a concept and try to deal with a typical problem in various ways from various ideas, that is, multiple solutions to one problem; Try to use * * * to explore the law of problems, that is, to solve more problems; Constantly change the conditions of the topic and test your knowledge from all aspects, that is, a topic is changeable. The value of a question lies not in doing it right or doing it right, but in knowing what the question wants to test you. Understanding the problem from this angle can not only find a breakthrough to solve the problem quickly, but also not easily enter the trap set by the teacher.
3. Learn to optimize the problem-solving process
Three words should be grasped in solving problems: number, form and shape; Reading, examination and expression should realize the free conversion of three mathematics languages (written language, symbolic language and graphic language). We should attach importance to and strengthen the training and research of multiple-choice questions. We should not only be satisfied with the correct answer, but also learn to optimize the process of solving problems, pursue the quality of solving problems, spend less time and do more things, so as to win enough time to think and solve high-level problems.
We should constantly accumulate experience in solving multiple-choice questions and make a mountain out of a molehill as much as possible. Besides the direct method, we should also flexibly use special value method, exclusion method, test method, combination of numbers and shapes and estimation method to solve problems. When solving problems, the writing should be concise, to the point and standardized. Don't make a mountain out of a molehill, just write "score points".
4. Analyze test papers and sum up experience
At the end of each exam, we should carefully analyze the gains and losses and sum up the experience and lessons. Especially to classify the mistakes in the test paper.
(1) Regret mistake. It is clearly a problem that can be done, but it is wrong;
(2) Contradictory mistakes. Memory is not accurate enough, understanding is not thorough enough, and application is not comfortable enough; The answer is not rigorous, incomplete and so on.
(3) the fault of omission. Because there is no wrong answer and guess, or there is no answer at all, this is a problem without thinking, understanding, let alone application.
If we find the reason, we will eliminate regrets, understand the paradox, strive for success, and effectively solve the long-standing problem of "meeting but not right, right but not complete".
5. Wrong reflection once.
There are some mistakes in every exam, which is not terrible. It is important to avoid similar mistakes in future exams. So pay attention to write down the wrong questions at ordinary times. The wrong notes include three aspects:
(1) Write down what the error is, preferably in red.
(2) What is the cause of the error? Analyze from four aspects: examining questions, classifying, copying knowledge and finding answers.
(3) Error correction methods and precautions. According to the analysis of the cause of the error, put forward the correction method to remind yourself what to pay attention to next time you encounter similar situations.
If you can record and analyze the mistakes in each exam or exercise, and try your best to ensure that the same mistakes will not occur in the next exam, the probability of making mistakes in the senior high school entrance examination will be greatly reduced.
6. Turn good practices into habits
Good habits will benefit you for life, such as "mistakes in examining questions", because you are eager to achieve success? The tactics of "one slow and one quick" can be adopted, that is, the examination of questions should be slow and clear, the steps should be in place, the action should be fast, the work should be gradual, the stability should be fast, and the success should be based on one time. Don't form the bad habit of being afraid of not finishing, eager for success and hoping for inspection.
In addition, the general examination is regarded as an important way to accumulate examination experience, and the general examination is regarded as the senior high school entrance examination, which is constantly debugged and gradually adapted from all aspects. Pay attention to the writing standard, you can't lose important steps, and losing steps means losing points.
According to the characteristics of graded answers, we might as well make a psychological transposition. According to their own actual situation, from the requirement of "correctly completing all homework" to the requirement of "based on completing some topics or some topics". Don't spend too much time on a problem, sometimes giving up may be the best choice.
I want my children's math scores to be between 60 and 120. I have already told you the skills, and I hope it will help you. The most important thing in learning is the learning method, and a good learning method can get twice the result with half the effort.
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