cell phones in class

Here is a story about a teacher who encourages her students to use their cell phones in class for educational purposes. This is a case of allowing students to use something that is normally banned, however, giving students freedom within limits. I would imagine that, as with any freedoms, there are students who misuse their phones, but there are those students who benefit from the privilege and are actually able to learn something new using this new teaching technique. It is a Google world.