Teachers cannot hit them to make them obey. If they scold them severely, the kids cry. There is no communication between teachers and pupils. The problem is caused by how they are raised at home by their parents. The parents do not discipline their children at home.
Children consider their teachers simply as third persons.
They have not been raised to associate with them. In US schools, teachers say three things to new attendees in primary schools. The first thing is that if everybody agrees to do a certain thing, they must do it even if one doesn't want to do it. The next thing is that when they find policemen are in trouble, they must help them. The third thing is that if what teachers are saying is different from what your parents are saying, do what your parents are saying.