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!
