text: Another reason that the students should be able to use their cell phones is cause what if they need a calculator but if they needed to do that they should first come to you and ask or go to that teacher in that class and ask them if it is ok to use their phone but only for a reason or emergency like needing to call someone to bring stuff that they may have left at home. Here is some reasons that they may need to call someone : leavening homework at home, forgetting their lunch, needing a different pair of clothes, or if they need to picked up just incase they are not feeling good or they are hurt and need some rest.