In some schools, cell phones have to be turned off or perhaps kept in lockers to avoid misuse. But the authors hope to demonstrate in this article how they can be used under supervision to assist learning. There is no question that the uninitiated will at first look upon the use of phones in learning with suspicion, but this is often the case when new technologies emerge in schools. However, the sheer proliferation of mobile phones in today’s world makes it likely that they will soon find a spot in the classroom alongside personal computers, whiteboards, and the internet.