So... I can tell you the administration either already knows shes terrible, but hasn't been able to get rid of her, or they think she's fine and they are friends, in which case your complaining will do no good.
If there were specific incidents that took place that were inappropriate, then yes, document those and let the administration know. Otherwise, I wouldn't worry about it. The administration typically already knows which teachers pretty much suck and shouldn't be teaching... unfortunately they can't just fire these people!
We had a bad egg teacher. It took a principal who was retiring and complaints from three families in the same school year to get her moved (impossible to fire). You may be setting the stage for that perfect storm in future years if you convey your concerns.
