One student said, "It can potentially be a good thing, like a mentor."
But if you ask parents and you might hear something different.
"I think it's just too informal," said one parent.
Other parents suggested that teachers and students are two different things, and you have to draw the line.
That's along the same lines as what this salt lake city principal is saying:
And another point from one student in Salt Lake City says Facebook helped him.
"I had a paper last week and told my teacher I'd get it to him online and so it was on time because of Facebook," said Gavin Salisbury.
Eyewitness News wants to know what you think. CLICK HERE to vote on our online poll.