M.L.
It's probably just her age. My daughter did the same thing at that age. She still has a hard time focusing on her school work instead of socializing, but she's just a little more hands on than most I guess. I was the same way as a kid. I would be leary about even mentioning ADD to a doctor or a teacher unless she is having behavioral problems at home as well. I work in healthcare and even I know that doctors are way to quick to write a prescription for stimulants that are very addicting and then if you stop giving it to them, they go through bad withdrawls. If you even think for a second that it might be ADD, then try giving her a cup of coffee or a coke at home, and see if it calms her down or hypes her up. If she does in fact have ADD then the caffeine will calm her down. I also want to mention, that in the case of ADD, there is a non-habit forming drug available that works very well, it's called Strattera.
I started taking privileges away from my daughter, every time I got a bad report from her teacher. When I got a good report, we would do something special, just the two of us, and she got to choose.