As a former Social worker with people with disabilities I commend your decision to mainstream whenever possible. Other children will learn more about caring for all God's people better through having a disabled child in their class than they will through any lesson plan.

While the stimulating environment of Rotation is great in many ways, for some children with severe disabilities the changing of rooms and changing of faces can be unsettling. If that turns out to be the case consider bringing the workshop into the kids, not the kids into the workshop. Also make sure you can find shepherd willing to make long term commitments.

I know you would never do this, but for anyone else reading this, PLEASE don't put a 5th grader with a first grader because he's "at that level." It's humiliating.