Reading Time: 2 minutes Do we really need a school bell? We’ve all seen the cliché-filled school scene that features in most American dramas or sitcoms. You know the one. It’s where children are sitting at individual desks scrolling through their phones and throwing scrunched up notes in front of a teacher who apparently has no control over their students. The bell rings, prompting the children to surge towards the exit. Despite their best effort, with screeches of “The bell…