Every school has different rules for cell phone use, but most allow students to bring phones so long as they turn them off during class. Parents: check the school’s rules — and make sure your kids are mature enough to follow them. Generally speaking, kids should use their phones sparingly and only when permitted, before and after — but not during — the school day, such as when they need a ride, there’s an emergency, their plans change, or Mom or Dad calls. (And parents, although it can be tempting to text your kid during the day, resist the urge unless it’s truly urgent.)

Students have been known to misuse their cell phones at school. Make sure they know not to use the phone for unsanctioned purposes, such as cheating, harassing teachers and videotaping it, taking pictures of other kids without their permission, and so on. Some violations have serious consequences — and the evidence is all on the phone.

What are your school’s rules about cell phone use?