What they said!
And - Take a look at the book, 'Iowa Acceleration Scale Manual' Your school's gifted coordinator may have a copy, or be willing to help you plan.
One approach is to try to determine how your dd fits with the school's current curriculum. The school may even have this posted on their website, perhaps as 'scope and sequence.'
Try to bring in work samples in your child's own handwriting that older children in her school are given for homework.
Remember that doing everything wrong my ruin things, but even if you do everything right, you still may not have things go in a reasonable way.
I liked the book 'Getting to Yes."
This isn't really a negotiation, it's more like begging. For mental health reasons, you may want to flush out a back up plan or two. Getting to know your daughter's LOG (level of giftedness) will tell you a lot about what kinds of back up plans might work, and how much of a difference it would make. Many kids who are 'right in the middle of the gifted pack' do fine with Saturday Enrichment and the pull out programs. Have you seen any behavior from your dd that worries you? This is the 'social development' card that the schools usually react to.
Best Wishes,
Grinity
