They haven't used the IAS. I'm pretty sure they haven't heard of it, and I've been reluctant to bring it up because of the sibling issue.
There are two to four teachers in each grade, and no composite classes. We could potentially have them in different classes in fourth grade. But they are both excited advice being together, both excited about this teacher, and both close to the same levels in math and reading. I think it would be beneficial for both of them both socially and academically to be together.
