they should just turn the classrooms into faraday cages. Problem solved and no storage required. Back in my day we didn't have phones in class (they were too b

they should just turn the classrooms into faraday cages. Problem solved and no storage required. Back in my day we didn't have phones in class (they were too big and expensive). We still played up, did little work and achieved nothing :) If the teachers gave a toss and were engaging, it would be a different story.