When you think of a college class, what image comes to mind? Probably a professor droning about economics, or biology, or something, in an auditorium with several hundred students. If you focus on the students in your mind’s eye, you’re probably imagining them looking bored and, if you’ve been in a college lecture hall recently, your image would include students shopping online and chatting with friends via social media while the oblivious professor lectures on. What could improve the learning and engagement of these students? According to a recent literature review, the results of which were reported by Science, Wired, PBS, and others, damn near anything.