The first reason is the bad relationship between classmates;

The second reason may be the teacher. Some teachers are too strict and strict with their classmates. When students fail to meet this standard, they will be punished because they are afraid to go to school.

The third reason is the child's own reasons. It may be because the pressure of study is too great, the schoolwork is too heavy, and the rebellious psychology of adolescence has produced the feeling of being tired of learning over time. To help children get out of trouble, you can also watch some inspirational books or movies to exercise their ability to resist stress, thus eliminating their weariness of learning.

I suggest that you can make a plan for further study in advance. There are many entrance plans that can help you get into an ideal school. If you plan for yourself earlier, you will have more choices when you enter a higher school.