2. What should scientific learning methods pay attention to after class? First of all, listen to the teacher carefully. This is the main reason for getting good grades. Listen attentively, follow the teacher's thinking, don't be distracted, and don't listen at the same time. Secondly, we should pay attention to every word the teacher says, because mathematics is famous for its rigor, and there are serious differences between words, and there are infinite mysteries hidden between words. Pay attention to taking notes when listening to the lecture. Please raise your hand to speak actively in class. Raise your hand to speak has many advantages: ① It can consolidate the knowledge learned in class. (2) Exercise your eloquence. Those vague ideas and mistakes can be taught by teachers. It's killing three birds with one stone. In short, listening should be done with hands, mouth, eyes, ears and heart. Second, extracurricular exercises. Confucius said, "Learn from time to time". Homework after class is also an important part of learning and consolidating mathematics. I pay great attention to the accuracy and speed of solving problems. Accuracy means accuracy, concentrate on completing your homework independently, strive to be accurate once, and correct any mistakes in time. And speed is to exercise your concentration and sense of urgency. You can set an alarm clock at the beginning of your homework and put it out of sight, which will help improve the speed of your homework. I won't be nervous during the exam, and I won't lose sight of one thing. Third, review and preview. Math review can be arranged every night. After finishing my homework that day, I will briefly look at the new knowledge I will learn the next day, and then recall what the teacher said. When I sleep in bed, I will "watch" the teacher's class in my mind like watching a movie. If there is any problem, I can turn over the books until I understand them. Every Sunday, I will summarize, review and preview the week's homework. This is good for learning mathematics. If you master it firmly, you won't forget it. Fourth, improve. After reviewing your homework, do some climbing questions. Doing this kind of problem, thinking independently as much as possible and trying to find out the hidden conditions are the key to solving the problem. If you really can't think of it, you need to look at the reference books and consult your teachers and classmates.