Restriction is a far better strategy. These efforts won’t be simple to execute, but the alternative is simply too damaging to students’ learning and well-being. Keep cellphones turned off and out of sight during the school day—and give students and educators a fighting chance to focus, reconnect, and build school cultures that nurture belonging and academic success.
https://www.educationnext.org/take-away-their-cellphones-rewire-schools-belonging-achievement/