First of all, it's not like high school now. If you don't study, teachers will come to you, and sometimes they will come to your parents. In college, teachers no longer care about you, talk about themselves, and care about whether students listen or not, so you will see many things that you can't see in high school, such as playing mobile phones, which may be played in high school but not often, while many people in college play mobile phones in class.

Generally, when you are in college, it is a big classroom. Because the class is not just one class, there are many classes, and sometimes two colleges have classes together, so the teacher ignores the class because there are too many people in charge.

There is much less homework in college than in high school, and there are not classes every day, so there is a lot of time to do homework.

College exams are not as difficult as high school. Generally, the problems encountered in the final exam are in the exercise books and books that are usually done, so it is generally not too difficult. As long as you listen carefully in class, you can get good grades.