Math: 1. Adjust your mind before class. You mustn't think about it. Hey, math class again. I was in a bad mood when I was in class. Of course I can't learn well! 2, be sure to listen carefully in class, so that you can hear, see and reach! This is very important. You must learn to take notes. If the teacher speaks quickly in class, you must calm down and listen. Don't take notes, write them in the notebook after class! Keep high efficiency! As the saying goes, interest is the best teacher. When others say the most annoying class, you should tell yourself that I like math! It is very important to make sure that every problem you encounter will be understood and understood! Don't be embarrassed if you don't ask, learn to draw inferences! That is flexible use! Don't ask too many questions, but be precise! 5, there must be a set of wrong questions, write down the good questions you usually encounter, write down the wrong questions, read more, think more, and don't stumble in the same place! ! In short, don't be afraid of difficulties, tiredness and problems in math class! You can ask this question here, which shows that you really want to learn math well! I believe you will succeed, come on! ! ! Physics: Summary is the most important, including the summary of the classroom teacher, the summary of self-preparation and review after class, and the summary of wrong questions. It's best to find a book, record your own experience and read it at ordinary times. You need to know the formula and memory, use it appropriately according to the specific situation, and pay attention to the scope of application of the formula. Don't equate physics with mathematics, especially for calculation problems, and develop a good habit of writing format. Drawing is very important for most problems. The key of circuit diagram is simplification. Drawing can tell the connection at a glance. Mechanical stress analysis is the basis of doing the problem. The optical path diagram can help us analyze problems, and even the heat of boiling evaporation will be used. Of course, it's easier said than done, but don't be under pressure. I think the key to physics is getting started, and touching classes will bypass more practice and practice. Physics is very interesting chemistry: the basis of chemistry is nothing more than elements and chemical reactions. I think you should first master the principle of chemical reaction and know what the chemical reaction is. The learning steps are as follows: 1. Have a deep understanding of what a chemical reaction is and what its main components are. 2. To learn redox reaction, you must know what is oxidation reaction and what is reduction reaction. 3. Memorize commonly used chemical reaction equations and typical chemical reaction equations. Read the text carefully to improve your interest in chemistry. 5. Strengthen extracurricular exercises. It is suggested to choose some less difficult exercises to enhance self-confidence.