Well Amy, I feel that I've been there. I think I understand what you are trying to communicate.
It sounds like you have a firm grip on what the problem is, now how do you go about solving it?
A chess game is rarely decided by the second move. Unless you whip out a pistol and shoot your opponent.
(To illustrate a point, not recommending shooting anyone!)
I would suggest you start researching and get as much policy info before the meeting if possible. If you aren't able to that's fine, because it brings me to my next point: I would suggest that you don't expect the majority of your daughter's difficulties at school to be solved in one meeting.
Based on the info you've posted, I'd want to know:
What are the state laws on partial homeschooling?
What are the district published policies on partial homeschooling?
Also, district policy on gradeskipping and subject acceleration. You'll notice I don't care what the policy on differentiation is(ooooooh, harsh, I know).
Since it's the district's policies you want, you should probably get that info from the district office.
You are, after all the PTA president. It wouldn't be unrealistic for you to be tracking down some info to satisfy the inquiries of some concerned parents.
I'm a concerned parent of a child at your school.
There, now you have a clean conscience.
Lastly, I would sit on information you get for awhile and ponder it. I really wouldn't whip it all out at the first meeting.
If you are going to ask about above grade level work at the meeting you should probably have some data to support the request. What data do you have?
When is the meeting?
