Read more textbooks, understand the meaning of thorough theorems and definitions, and do more typical exercises. Can broaden your horizons.
Mathematics seems to be the least memorable subject, but it is not easy to use it flexibly. Yue Fei's The Art of War says that "the beauty of art lies in one heart". If we can connect many subjects in this content in our minds, it will be the first step to success. Except for a few particularly smart people, a considerable number of exercises must be done to learn this course well. So how to deal with the relationship between learning and studying book knowledge and doing exercises in series? As far as my personal experience is concerned, in any case, we must pay enough attention to the relationship between basic knowledge and knowledge, learn to review what we have learned consciously when doing exercises again, and it is particularly important to consolidate and find out the relationship between knowledge. If we can form a clear concept, supplemented by a certain amount of practice, we can reach the corresponding level. On the other hand, if you don't know how to summarize the problem, the efficiency of doing it will be greatly reduced.
Physics is a subject with rich contents, which requires not only logical and mathematical abilities such as reasoning and calculation, but also seeking knowledge from the outside world through observation and experiment. Therefore, this course plays a great role in improving people's scientific literacy, and it is not a studious course for a considerable number of students. Another obvious feature of this course is that it is divided into several relatively independent parts, such as force, heat, electromagnetism, light and atom, and each part has its own set of corresponding learning methods. If you are good at separation and division, it will help to clarify the concept and be more efficient. There are systematic knowledge about physics, such as statics and dynamics, which are quite perfect theoretical systems, but there are also scattered knowledge, such as atomic physics. Corresponding to the knowledge of the system, understanding is the main thing, and its content should be deeply understood; And for scattered knowledge, perhaps the effort of memory is more important. Physics books mainly give some basic concepts and theories. In order to cope with the difficult and flexible college entrance examination questions, it is very important to do quite a few exercises, deepen the knowledge learned in the process of doing the questions and form a problem-solving routine for a class of questions.
In my impression, chemistry is a relatively scattered subject, and there are some basic theories, but it seems to be a relatively scattered knowledge point, which is not systematic and brings some troubles to learning. Moreover, although the basic theory of chemistry is not very complicated, it is not easy to apply it freely. This requires us to study the basic theory in the textbook seriously, supplemented by high-quality exercises, study hard and understand effectively; For all the knowledge points mentioned in the book, we should try our best to master them comprehensively and should not miss anything. In addition, it is particularly important to point out the experimental problems in physics and chemistry. Experimental questions are very important in the college entrance examination. Fortunately, there are not many typical experiments of physical chemistry, or there are not many experiments that are rich in content and easy to get. It is best to master them effectively and understand all the subtle knowledge points involving theory and practical operation. We should grasp its characteristics when learning every subject.
1. It seems simple to check the meaning of the question, but it is not easy to really do it. It contains a question of whether to focus on it, which is also the key to shenqing's meaning. You can list the conditions given in the problem one by one and dig out the hidden conditions, such as "the quadratic equation has two unequal positive solutions", which implies that ① this equation has a solution. After solving the problem, you should generally review it, but it doesn't mean recalculation, but depends on whether the conditions have been used up and whether all the restrictions in this answer have been met. If there is anything unusual, this topic needs further careful consideration. 2, make a mountain out of a molehill, there is no need to ask more. The so-called "making a mountain out of a molehill" means that you don't have to be limited to the required questions, you can attack from many sides, find as many problems as possible according to the given conditions, or you can adapt to adding some conditions in order to get more problems, but you should act cautiously when adding conditions. Then compare the required questions to see if you have solved them. If not, it means that this aspect is your own blind spot of thinking and you need to train more. Although there are not many questions, they are very knowledgeable and refined. If we can change the given mathematics into letters, I believe it will expose the essence of some problems more. In this way, I don't have to do much. What he wants to grasp is the idea and method of doing the problem. Similar problems are just the same repetition, so I will leave it alone.
2. It is very important to pay attention to the ideas and methods of doing the problem, which is the basis of doing the problem well, and finding the right way to cut into the problem is the key in the foundation. When this step is completed, the topic will gradually become clear and clear, and the topic will only be forgotten.
3, the method is very important, and the method of doing the problem is halfway to solving the problem. It's really a matter of accumulation. We must firmly grasp some more meaningful methods in the competition, so that we will not panic when we meet a new problem, and we will find its essence and solve the problem.
4, everything should be detailed, and the concepts in the book should be read word for word. Listen to the teacher word for word, deduct word for word, carefully examine the questions and do them carefully, especially when calculating. Earnestness is the basis of getting high marks. It is a quality cultivated by acquired people and plays an important role in the college entrance examination, and a large part of the college entrance examination results depend on it. 5. Think more, ask more questions and think about many things. You can think about yourself, about the physical or chemical phenomena you encounter when you are strict, about everything the teacher says in class, and about the correct solutions to the exercises you do. This will inevitably lead to a series of such problems. Not only can you get this kind of knowledge by asking them questions, but teachers may also contact other questions to get more knowledge.
In addition, we must dare to think and ask some strange questions, which is very helpful for our future growth.
For science questions, the main thing is to master the methods, and the exercises will never be finished. The scientific use of time in exams is an important part of improvisation. The basic principle of allocating answering time is to ensure that you will never lose points where you can score, and strive for points where it is not easy to score. You should have a concept of fractional time ratio in your mind. It is undoubtedly more valuable to spend 10 minutes on a big question with 15 points than to spend 10 minutes on multiple-choice questions with 1 points. After the test paper is handed out, you can get a general idea of the type, quantity, score and difficulty of the test questions by browsing the whole volume, and then determine the corresponding answer time for each question. In the process of answering, we should pay attention to the original schedule. For example, the question 1 is planned to take 5 minutes, but there are no eyebrows at all after 5 minutes, so you can skip this question for the time being; But if you are close to success, you have to extend the time. It should be noted that the allocation of time should be subject to the purpose of success in the exam, and the time should be grasped flexibly, not rigidly adhering to the original arrangement. The time schedule is only a rough overall arrangement, and it is not necessary to make the time accurate to every 1 sec or every 1 sec. You need to set aside 5- 10 minutes for the exam, but if the number of questions is large and you are more sure of the accuracy of your answers, the exam time can be shortened or cancelled.