How to learn chemistry and physics quickly? , of the exam

Physics is actually very easy to learn, and the content of compulsory 1 and compulsory 2 is not very connected, so don't have a sense of fear first. This, it is definitely very important to listen to the class in class, even if the teacher does not speak well, but he is the teacher after all, he understands the content of this part, so he must listen to the class. Before class, it is best to preview, it is best to look at the content, and then try to understand the knowledge points, generally speaking, a piece of content is a knowledge point, the most important preview method is the next step, to try to do a sample problem in the book, whether the answer is correct or not, do it to know how the topic related to this place will come out (the general question is to change the soup but not the medicine).

Then, in class, you have to write down the formula and how the formula is deduced, because if you can memorize "how the formula is deduced", you don't have to work hard to memorize the formula, and if you remember more, you will find that you can push it out on scratch paper, I think, it is really important to know how to come up with the formula, even more important than the formula!! Homework must be done by yourself, no matter how easy or difficult, if you can't, don't ask your classmates and teachers all at once, think for yourself, this is more effective.

As for chemistry, I'm not that good. I didn't like our chemistry teacher when I was a freshman in high school, so I didn't do a good job in class, and now I can't afford it anymore in my sophomore year, so I can't help but learn chemistry in my freshman year.

In fact, I now look back at the chemistry book, and find that it is not difficult, I don't know which version you use, mine is the Sujiao version, the compulsory one has been learned in the previous junior high school, so there is nothing at all, and the back is also a piece by piece introduction of one material element after another, and each element has a representative, as long as you know the physical properties, surface phenomena and chemical properties of the representatives, and the chemical properties are nothing more than metal and non-metallic, redox, acidity and alkalinity, characteristics, etc., and then you have to memorize it, In this way, you will be able to introduce the properties of some other things yourself. There is nothing in front of the second compulsory course, organic matter is a difficult level, during that period of time, I wrote other homework every day, wrote quickly, left chemistry for night self-study, took out a difficult manual (published by East China Normal School, very easy to use, you can go and buy one), the book about organic matter was all rotted by me, and the result of the chemistry exam was the best in history, so writing questions and reading books are more important than other skills.

I also started working hard in my third year of high school, and I got 80 in physics (so-so) and 95 in chemistry (not bad) in the college entrance examination.

First, pay attention to the basic exams are all around the textbook, and the experimental questions are all changed from the book. I use.

I haven't canceled these two courses yet, and I haven't been exposed to these since college...