Four years is enough. In my opinion, a good learning method includes four main links: preview, attending classes, reviewing and doing problems.

First of all, we should realize the importance of preview. Through preview, we can grasp the difficulty of this section, so as to "have a clear aim" in class and take the initiative to acquire knowledge. Moreover, through preview, you can cultivate your self-study, understanding and independent thinking ability, which is also one of the purposes of learning physics. Learning physics is not only learning physical knowledge itself, but also mastering this set of ability to analyze and solve physical problems.

Preview can not be completed simply by reading a book, but by reading the textbook carefully, pondering every sentence and carefully scrutinizing the laws of physics until you understand them. If you really don't understand, you should mark it, which is the focus of your class. Therefore, through purposeful preview, we can turn passivity into initiative and lay a solid foundation for mastering knowledge. Listening to classes is the most critical part of learning.

In class, first, we should pay attention to the key points emphasized by teachers, which are often the main objectives of various exams;

Secondly, pay attention to what you don't understand when previewing. Teachers must listen carefully and think positively when they talk about this place. Generally speaking, they will understand. If you really don't understand, don't think too much and delay the lecture. You can ask the teacher after class. A good memory is better than a bad writing. Besides listening carefully in class, you should also take notes. Because notes are often the systematization and concretization of the key and difficult points summarized by teachers in many years of teaching practice, which embodies the teachers' hard work. In addition, taking notes is also convenient for grasping the key points when reviewing.

After listening to the lesson, the knowledge points in the brain are like beautiful pearls scattered on the ground, which must be connected into a beautiful necklace through the thread of "review". When reviewing, you should chew the textbook carefully against the key points in your notes and the difficulties in preview. Important physical concepts and laws should be kept in mind. Review can't be confined to this section as it is in preview, because there are many similar laws in physics, and many concepts and laws are internally related, such as the motion of objects in gravity and electric field, the inverse square ratio of the law of universal gravitation and Coulomb's law, the connection and difference between fluctuation and vibration, and so on. This requires us to pay attention to the contact and communication before and after review, so as to better grasp their essence.

The review is over, but you're not finished. Now you only know the laws of physics, but how to use them in specific situations and what skills to use, any laws of physics have their scope of application. Beyond this range, the law may not stand and must be replaced by a more accurate theory. You may not know or be familiar with these things, so you have to consolidate what you have learned by doing problems, apply the laws of physics to solve practical problems, and accumulate experience in doing problems. Practice makes perfect. I don't advocate sea tactics. We should do fewer but better questions and do more different types of questions. Before each question, we should carefully examine the questions, distinguish the types of questions, and find a general method suitable for a certain type of questions, so as to draw inferences from others and draw inferences from others.

In addition to textbooks, we should also read some extracurricular reference books, which is of great benefit to deepen our understanding and skilled application of physical laws. In the choice of reference books, don't choose those problem sets, problem sets and question banks, because they only have a simple answer, which is neither thinking analysis nor regular application. If you do it right, eat it. If you do it wrong, you don't know why.

Therefore, we should choose books such as study guidance and problem-solving guidance, which often contain detailed problem-solving thinking analysis and specific problem-solving steps. For the same physical problem, due to different starting points, different physical laws and different mathematical methods, the complexity of the problem-solving process often varies greatly. When you look at the solutions in the reference books after you finish the questions, you will often find more ingenious ideas, more flexible physical laws, more effective mathematical means and more novel problem-solving methods. In this way, every time you do a problem, you will gain a lot. As time goes by, always being exposed to new, flexible and flexible ideas will make your thinking more open and flexible. In addition, it is best to add the applicable types, skills and precautions of relevant laws to the corresponding chapters of your notes, so as to systematically incorporate them into your knowledge network in future review.