text: kids should turn off their cellular dives because while their in class the phone will not interrupt the teacher are the class and it will not throw them off their subject . the cell phone can start trouble because of the phone call's and text's and the teacher will keep telling them to turn it off and they never listen and by the ring tone keep playing the teacher will not be able to tech her class and then the other students will think they can call and text any time the feel free to use it in class. the phones should be turn off not on vibrate why off? because, while the child taking a test they can text another person and ask for answer and it will throw them off .