It may be difficult for some students who are not good at math, or it may be because college teachers are not careful enough in class. In short, some theories are not so easy to understand. After all, mathematics is a very rigorous subject. College students are more complicated and nervous than middle school students, and they are more conscious and independent. Therefore, the strength of learning motivation has a great influence on college students' academic performance.
Learning skills of college mathematics
It is said that preview before class is very important. Indeed, previewing before class can help you have a general understanding of what the teacher is going to say, and you can choose competitions that you can't do but can't hear in class. However, many students can't attend advanced mathematics books, which is difficult and boring, and they will feel disgusted with advanced mathematics if they force themselves.
Therefore, those who can understand advanced mathematics books must learn independently, and those who can't understand them should not force themselves. You can go to class if you don't understand. There is plenty of time in college, and teachers' classes will not all be crowded together, so it is also a good preview to take math classes when there is no class. You may not understand this after listening to the advanced mathematics class once, but you should understand it after listening to it twice.