Good suggestions above. I would add a request related to the materials that they plan to use. Perhaps say something like, "well, since we are going to be going ahead in the classroom, I would find it reassuring if you could show me the materials that you have selected and how they align with the information from MAP". If they can't show you materials, that opens the door for you to continue pushing for acceleration. If they show you materials but can't show that they align, that also opens the door. If they can show you materials that do align, at least you'll have that bit of reassurance at the beginning and then if it goes as you predict you'll be able to say, "since bringing the materials to the classroom didn't work, can we now look at bringing him/her to an instructional environment that is already working on these standards".
Good luck--let us know how it goes!
