text: If students were allowed to use cell phones during lunch or passing periods they would be much less likely to do so in class. This is because the majority of students who use phones during class are sending short messages reminding another person of something or are sending messages to their parents telling them to pick them up because they are sick. These messages are usually not very urgent so most students would be glad to wait a few minutes until class is over if it meant they had no risk of getting in trouble.