Communication tools are needed, but must recognize the use student itself has a duty to learn. Thus, the classroom must turn off cell phones so that they do not lose concentration in class.
Communication tools are needed. I used to know The students themselves are responsible to learn. The classroom must switch off their mobile phones. Not to be distracted in class.
Communication tools is necessary, but must know how to use, students have towards the school. So the classroom must turn off your mobile phone. To avoid losing concentration .