How to get high marks in science?

Experience 1: 1, you might as well set yourself some time limits. It's easy to get tired of studying for a long time. At this time, you can divide your homework into several parts and limit the time of each part, for example, finish this exercise within one hour and finish that test before eight o'clock. This will not only help to improve efficiency, but also avoid fatigue. If possible, gradually shorten the time used, and soon you will find that the homework that you couldn't finish in an hour before is now finished in 40 minutes. 2. Don't do other things or think about other things while studying. Everyone knows that you can't do two things at once, but there are still many students who listen to music while studying. Maybe you will say that listening to music is a good way to relax your nerves, so you can concentrate on studying for an hour and then relax listening to music for a quarter of an hour, which is much better than doing your homework with headphones on. Don't review the same lesson all night. I used to spend an evening watching math or physics. Practice has proved that it is not only easy to get tired, but also has a poor effect. Later, I arranged to review two or three classes every night, and the situation was much better. You don't need to take detailed notes in class except for very important content. Busy taking notes in class will be inefficient, and there is no guarantee that you will take notes after class. The main work in class should be to digest and absorb the teacher's lecture content and make some brief notes appropriately. Lesson 2: I have also talked to many people about learning efficiency. We often see such a situation: a classmate studies extremely hard, studying at school, studying at home, sometimes staying up late and doing countless problems, but his grades are always not up. In fact, I am also very anxious in the face of such a situation. Originally, what you have paid should be rewarded. Moreover, if you pay more, you should get a lot of rewards. This is a natural thing. But this is not the case. There is an efficiency problem here. What does efficiency mean? Just like learning, some people will practice it ten times, while others need to practice it a hundred times. There is an efficiency problem. How to improve learning efficiency? I think the most important thing is to combine work and rest. What is most needed to improve learning efficiency is a clear and agile mind, so proper rest and entertainment is not only beneficial, but also necessary, which is the basis of improving learning efficiency. So how to improve the efficiency of class? In my experience, it is necessary to preview before class, but my preview is rough, and I only glance at the teaching materials, so that the contents and key points of the teaching materials are roughly in my mind and I can be more targeted when I attend classes. When we preview, we don't need to be too detailed. If we are too detailed, it is a waste of time. Second, I will be a little lax in class, and sometimes I will ignore the most useful things. It is of course necessary to listen carefully in class, but as one of my former teachers said, no one can concentrate in a class, which means it is impossible to concentrate for more than 40 minutes, so there is also a problem of time allocation in class. Teachers can relax when they talk about familiar things. In addition, taking notes sometimes hinders the efficiency of class. Sometimes a class is busy copying notes, and sometimes some very important things are ignored, but this does not mean that you can not take notes, which is not enough. Everyone will forget that with notes, there will be a basis for review. Sometimes the teacher talks a lot and writes a lot on the blackboard, but you don't need to remember them all. Of course, you should remember some books. Otherwise, remember what you see, which will inevitably affect the efficiency of class, and the loss will outweigh the gain. How to improve the efficiency of doing problems? The most important thing is to choose a "good topic" and never do it indiscriminately. In that case, it will often get twice the result with half the effort. The questions are all around knowledge points, and many questions are quite similar. First, choose the knowledge point you want to strengthen, and then choose the questions around this knowledge point. There are not many problems, but one similar problem is enough. After choosing the topic, you can do it seriously. The improvement of problem efficiency largely depends on the process after the problem is solved. For the wrong question, we should seriously think about the cause of the error, whether it is because the knowledge points are unclear or careless. Do it again after the analysis to deepen the impression, so that the efficiency of doing the problem will be much higher. Comments: Yu Xia's suggestion on attending lectures and doing problems actually reflects an important method to improve learning efficiency-"keeping your strength on the cutting edge", that is, allocating time reasonably, paying attention to key points when attending lectures and taking notes, and grasping typical examples when doing problems, which is "getting twice the result with half the effort" in learning. Experience 3: Learning efficiency is an important factor in determining academic performance. So, how can we improve learning efficiency? First, confidence. Many scientific studies have proved that human potential is great, but most people have not effectively developed this potential. Among them, people's confidence is a very important aspect. No matter when and where you do anything, with this confidence, you will have the belief of winning, and you will soon get rid of the shadow of failure. On the contrary, if a person loses self-confidence, he will accomplish nothing, and it is easy to fall into eternal inferiority. Another important means to improve learning efficiency is to learn to concentrate. The process of learning should be a process of thinking with the brain. Whether you look with your eyes, read with your mouth, or copy by hand, they are all means to help your brain. The real key is to think with your head. Give a very simple example, such as memorizing words. If you just browse or copy aimlessly, it may take many times to remember, and it is not easy to remember. But if you can give full play to your imagination and use the method of association to remember, you can often remember quickly and not easily forget. Nowadays, the method of memorizing English words quickly introduced in many books also emphasizes the role of brain association. It can be seen that if we can concentrate 7 times and give full play to the potential of the brain, the learning effect will definitely be greatly improved. Another important factor affecting learning efficiency is people's mood. I think everyone has had this experience. If one day, he is full of energy and spirit, he will feel relaxed and learn quickly. In fact, this is when we learn efficiently. Therefore, it is very important to maintain a good self-emotion. In daily life, we should have a more cheerful attitude, don't think too much about things that are not satisfactory, and treat people and things around us with a warm and optimistic attitude to life, because it is very beneficial to others and ourselves. This can create a very relaxed atmosphere around you, and you will feel particularly energetic when you study. Mathematics is one of the compulsory subjects, so we should study it seriously from the first day of junior high school. So, how can we learn math well? This paper introduces several methods for reference: First, pay attention to the lecture in class and review in time after class. The acceptance of new knowledge and the cultivation of mathematical ability are mainly carried out in the classroom, so we should pay attention to the learning efficiency in the classroom and seek correct learning methods. In class, you should keep up with the teacher's ideas, actively explore thinking, predict the next steps, and compare your own problem-solving ideas with what the teacher said. In particular, we should do a good job in learning basic knowledge and skills, and review them in time after class, leaving no doubt. First of all, we should recall the knowledge points the teacher said before doing various exercises, and correctly master the reasoning process of various formulas. If we are not clear, we should try our best to recall them instead of turning to the book immediately. In a sense, you should not create a learning way of asking questions if you don't understand. For some problems, because of their unclear thinking, it is difficult to solve them at the moment. Let yourself calm down and analyze the problems carefully and try to solve them by yourself. At every learning stage, we should sort out and summarize, and combine the points, lines and surfaces of knowledge into a knowledge network and bring it into our own knowledge system. Second, do more questions appropriately and develop good problem-solving habits. If you want to learn math well, it is inevitable to do more problems, and you should be familiar with the problem-solving ideas of various questions. At the beginning, we should start with the basic problems, take the exercises in the textbook as the standard, lay a good foundation repeatedly, and then find some extracurricular exercises to help broaden our thinking, improve our ability to analyze and solve problems, and master the general rules of solving problems. For some error-prone topics, you can prepare a set of wrong questions, write your own problem-solving ideas and correct problem-solving processes, and compare them to find out your own mistakes so as to correct them in time. We should develop good problem-solving habits at ordinary times. Let your energy be highly concentrated, make your brain excited, think quickly, enter the best state, and use it freely in the exam. Practice has proved that at the critical moment, your problem-solving habit is no different from your usual practice. If you are careless and careless when solving problems, it is often exposed in the big exam, so it is very important to develop good problem-solving habits at ordinary times. Third, adjust the mentality and treat the exam correctly. First of all, we should focus on basic knowledge, basic skills and basic methods, because most of the exams are basic topics. For those difficult and comprehensive topics, we should seriously think about them, try our best to sort them out, and then summarize them after finishing the questions. Adjust your mentality, let yourself calm down at any time, think in an orderly way, and overcome impetuous emotions. In particular, we should have confidence in ourselves and always encourage ourselves. No one can beat me except yourself. If you don't beat yourself, no one can beat my pride. Be prepared before the exam, practice routine questions, spread your own ideas, and avoid improving the speed of solving problems on the premise of ensuring the correct rate before the exam. For some easy basic questions, you should have a 12 grasp and get full marks; For some difficult questions, you should also try to score, learn to score hard in the exam, and make your level normal or even extraordinary. It can be seen that if you want to learn mathematics well, you must find a suitable learning method, understand the characteristics of mathematics and let yourself enter the vast world of mathematics.