Are Cell Phones in Classrooms The Future?

On the heels of Terry asking whether or not a teen should be allowed to own a smartphone, we got to talking about it on The Morning Show.

Then, a teacher called -- and I have to admit, I was a little more than surprised when she said that not only should students be allowed to have smartphones, but we should consider letting them use them in class.

Despite the obvious hassle that it'll cause, is it reasonable to consider letting kids have smart devices in classrooms?  Is there a difference between looking up reference material on a phone vs the library?

I wonder?