an essay Nowadays the life of children in schools becomes increasing important for their families and teachers. And also there are many problems about their behaviors. Bad behavior is due to a lack of structure and discipline. Numerous children have bad behavior may be caused by the unstable family background. So family becomes a extremely important reason about this. Some parents are too lenient and spoil their children. It makes children are used to getting whatever they want. There are also responsibility on school. They can cannot charge all of the students in the class. Even there are too many students in some classes, it is hard to manage. Solving this situation is not depend on oneself. School should make a clear code of conduct and create a clear rules about behavior. Teachers should have power to punish the disruptive students. If necessary, school need to remove this difficult students. The most importantly thing is parents should support the school rules. And they must take responsibility for their children. With the development of the society. We find it much better to have the more quality education for the children. So how to make them become better, this is depend on all sectors like the families、schools and themselves.