Preventing Classroom Cheating with Cell Phones
One possible method to prevent students from cheating during tests by using their cell phones:
Just don’t ask questions for which Google is the answer. It turns out that crafting Google-proof questions is tricky, but it can be done.The important part is to craft questions for which the “University of Google” gives an answer and it's wrong.
This is, by the way, why we still need classroom education in an era in which everything can be looked up online. We need a teacher to tell us when we misunderstood something.