The second year of high school is ok, the foundation is very simple, and the third year of high school is unusual. If you don't lay a good foundation in senior one and senior two, it is unlikely that you will make a difference in senior three, and it will also cause psychological pressure and make you wander in pain.
However, if you are interested, you are not afraid of learning badly. There is also the ability to do what you can, depending on your acceptance and understanding. As long as your IQ is not lower than 75, your science scores will not be bad. Tell me about my experience.
I am also a science student, and I think my grades are good.
Mathematics: Learning mathematics still depends on the ability to accept. Personally, I don't think it is necessary to preview for a long time in advance. As you said, you have the idea of previewing now. Just make sure you read the textbook before class and know where to go. For the two methods of previewing mathematics, the latter is still effective. Also, you must listen carefully in class, not let you listen to the teacher for 45 minutes. As long as you listen to the teacher explain the basic concepts and expand your knowledge, it is important to listen to the teacher explain the examples (this is very important). If you think it is necessary, you can take things to copy down the examples and solutions and listen to them in class. As for the arrangement after class, reference books are indispensable for mathematics, and no matter how strong the ability to accept is, practice is indispensable. It can be said that mathematics is practiced, after all, it is more lively, and there is no need to use junior high school thinking to learn senior high school mathematics. Well, it doesn't matter if I don't get satisfactory results in the initial test, but I may not be used to it (for example, I only got 76 points in the initial test, and then I didn't get 90 points, of course, 100), and I will get better in the future. Just don't lose that interest and confidence. It should be emphasized that reference books are very important. Of course, using reference books is more important. Stick to it, not to mention math.
Physics, physics in senior three is generally considered to be the most difficult (the final score of senior three is very large), but it doesn't matter, you can cope with senior three if you learn well. How to learn physics, formulas are very important. To memorize the formulas of mechanics, electricity and electromagnetism, of course, we should know what this formula is for, the basic knowledge of physics and the history of physics. Like math, reference books are very important. Children can read books and do proper exercises. There is nothing wrong with practicing more as long as your ability allows. (There are also the same preparation methods as mathematics) There is no explanation in class.
Chemistry, in fact, chemistry is the simplest science, and chemistry is a science with strong liberal arts. Just recite chemistry well. Mainly recite equations, element properties, material properties, experimental devices and the functions and uses of each device. Then find a reference book to do it.
Some examples are then answered according to the routine.
Biology is second only to chemistry, and it can be said that it is a science with liberal arts as the mainstay. Since it is a liberal arts subject, let the children accept their fate-they have already endorsed it. Without endorsement, even if you are Confucius, Newton and Gauss, you can't read well, except for remembering. You still need reference books.
The above four subjects can be previewed before class. Don't go to the heartless preview, do the exercises that you have already done.
You can learn English now. Memorize words, grammar and texts, and just listen to the reading. English is like reading Chinese. Read English in advance. If you memorize all the dictionaries this summer vacation, I won't talk about the consequences.
To sum up, learning is mainly about looking at yourself, others can't read it for you, and learning methods vary from person to person. I'm talking about my method for reference only. I think this is a good way to get along. As for you, you can refer to it. Study hard, believe in yourself, and don't be sorry for your interest.
Well, I haven't typed so many words for a long time, and my hands are sore. I hope playing so much will help you.
I almost forgot ... the high school curriculum is mainly self-taught, and the teacher just knows that you are self-taught. You can't wait for the teacher to talk over and over again like junior high school, and the class is much faster. You should be prepared.