A ban on students using smartphones took effect Tuesday in the Los Angeles Unified School District. The nation’s second largest school district voted 5-2 in June in favor of the ban on using cellphones,

When students in the Los Angeles Unified School District return to class after President’s Day, they might want to leave their cell phones at home. A district-wide cell phone ban takes effect on Tuesday.

Students in the Los Angeles Unified School District returned to classes Tuesday with a major new rule in place -- a ban on cellphones in classrooms.