Write something about how you want to support her love of learning, and you want her to enjoy school.
Then you ask for a meeting with the teacher, and in the meeting, ask for the teacher's advice. Ask what she would do in your shoes, and ask if there's anything you can do as parents to support your DD's alternative learning needs.
Most teachers have the "all parents think their kid is gifted" attitude so you have to tread carefully if you don't have proof to submit. I myself heard "we have several early readers in the class" from my DD's (then 4) KG teacher (translation: "uh-huh, ALL kids are smart").
Just ask for her advice. Not "what can YOU do for our DD" but "what do you think WE should do?"
(It doesn't matter if you agree with everything she says - usually the best plans are the result of a collaborative effort with pieces contributed from all parties. You can still believe what you want even if she believes something else. What I mean is don't be disheartened right away if she doesn't say what you're hoping she will).
Teachers seldom appreciate parents asking for exceptions right away (they already have enough on their plates), but they do value being asked for their advice and input. Later on in the game (as I'm seeing with my 2e son) when they see exceptions and modifications working then they are more open to them and inspired to make child-tailored changes.
Go in with an open, receptive mind and keep the lines of communication open as well. Good luck
