Bentonville West High School last school year hung pouches in classrooms where students stored their phones during class periods. Principal Dr. Jonathan Guthrie, left, said that compared to the previous year, there was a 57% decrease in verbal or physical aggression offenses and a 51% reduction in drug-related offenses. Eighty-six percent of teachers like English teacher Amy Groves, right, said they saw a positive effect in student engagement.