I just chatted with another mom who's dd7 is in first and reading like crazy and just a serious perfectionist and she know's her dd is gifted and wants her to be tested.
We are in the same county so I was able to give her some info, I also pointed her to this website.
The teacher has given her the impression that she can't apply without the teacher's recommendation, I told her that is definitely *not* the case. I am not sure she believed me - but the point is: finding out your district's policies will be to your serious advantage. When the teacher or admin folks try to shut you down on things such as testing early, grade skipping, etc. with various excuses and lines you will be much more able to keep the ball rolling steadily towards your goal of more challenge for your daughter.

Good luck!