Computers have entered the classroom. They have largely replaced pen and paper for note taking, at least in European and North American universities. In addition, many students read course texts on their computer, rather than in hardcopy, and in-class exercises rely on student access to online information or simulations. Yet, these productive uses of computers to facilitate and augment learning are not the only ways in which computers have entered the classroom. By making social media, games, email, and the like readily available they are also a source of distraction. The human-computer interaction (HCI) community can help understand the various consequences of computer use in the classroom and support students and educators in coping with them.