Should cellphone bring to school?

The answer is not, cellphones should not bring into class so as school. Because it will cause alot of problem in future. For the reason, student nowadays have cellphone with them, almost every one of them have 1. Even it gives alot of convenience in communication. In the mean time, it also causes alot of problem, problem as example are, sending text message during the class or exam, playing mini games, lost of phones being stolen and many more negative reason. So school should ban the use of cellphones in class.