2. Students are most afraid of doing wrong questions in exams. If they do something wrong, they should analyze and summarize it. I summed up four situations of losing points: one is to do it, but carelessness is wrong. The second is that you can't figure out how to do it at the moment, but you will do it afterwards. The third is that there is not enough time. If you give more time to think, you might do it. The fourth is that you can never do it. You can't do it if you sit there for ten thousand years. The solutions are as follows: First, be careful in the future. Second, we should do more and practice more in the future. As the saying goes, "Poetry can't be written, but it can also be recited." . Third, you must be able to use your time! Hurry up! But, quick, easy to make mistakes! How can it be fast? There is only one way: practice more! The fourth is the most terrible! There are two situations. One is that you can't do it, because you didn't learn well and you can't do it; There is another situation, you learn well, but you lack the comprehensive ability to draw inferences from others and can't do it. Most students' problems fall into the second category. It is reasonable for the teacher to ask such a question. The teacher won't come up with a problem that everyone will never do. The teacher is testing everyone's comprehensive ability. You have to turn around in your head a few more times and think about why, and you can do it.
There is a saying that interest is the best teacher. Everyone can cultivate their interest in mathematics before they can learn it well.