Mobile phones have changed the way we communicate, but people disagree on whether the devices are useful tools for education. Students can be easily distracted by their phones during class. Are they listening to the teacher or texting their friends? Are they taking a picture of a quiz to cheat? Maybe they are playing a game, or watching a video, instead of paying attention. School officials, teachers and parents all are trying to find out the best way to supervise students’ use of mobile or cellphones. In the Canadian province of Ontario, officials are restricting phone use during teaching time. However, there are exceptions for classroom activities, health and other emergencies. France passed a law in 2018 banning the use of cellphones in schools for students up to age 15, the age when they go to high school.