California schools are now required to have a plan to limit cellphone use in school. However, one school district already has a policy -- and it has been in effect for a year.

Worried politicians and school districts in several states have been swarming to limit cell phone use during class time. Florida and Indiana policies banning cell phones during class time took effect this July;

Editorials represent the opinions of the Star Tribune Editorial Board, which operates independently from the newsroom. ••• One of the changes that some Minnesota students returned to this fall is a restricted use of cellphones during school hours.