It is inevitable to get out of the stressful life in high school and enter a small society with relatively free universities. In high school, teachers will pay attention to our study and life. However, in college, we are required to have some self-control. The teacher is the knower of our study, not the compulsion. Therefore, students are not very familiar with the teacher's teaching methods, which leads to misunderstanding of the teacher.

Most teachers are responsible for their students. They prepare lessons carefully, talk seriously and guide the future. Let the students do their own research.

However, some teachers are irresponsible. Perhaps because of the school's education system, the requirements for teachers are not strict enough, and we have relaxed our vigilance against ourselves. There are also teachers with high academic qualifications, but they don't know how to teach and can't let students understand the content of their lectures. So, they just fool around, and only when they go to school for inspection will he put on a show.

Some teachers focus on their own scientific research and fail to do their due duty for the guidance that students like.