学生行为问题：
1. 什么学生?小学生、中学生、还是大学生?
2. 何谓行为问题?违法， 违反道德，非常规但是无害?被学校误解的行为问题?
3. 都是学生造成的吗? 家庭、社会、还有老师是否都有责任?
4. 具体案例?
The so-called student behavior problems in schools can be classified into three groups: illegal behavior, immoral behavior, and unconventional behavior. All these problems must not be attributed to a single reason. In fact, households, community, and the schools all should be blamed.
Illegal behaviors in schools usually have striking social effects although the cases are not large in number. However, it is often hard to attribute the illegal activities to the students. Parents, teachers, and the adults in the community all have some responsibilities. For instance, in the Yunnan University, a student called Ma JJ. Killed four classmates. This behavior rooted in his poor family life, little attention from his teachers, and the society as a whole.
