Dual enrollment? I've only heard of that for high school kids.
Does this mean taking some classes at the middle school while still in elementary? If so, that is quite common in math. As long as the elementary, middle and high schools have staggered start times, they just make math first period and the student gets on the middle school bus in the morning (then they shuttle him back to elementary).
I haven't seen shuttling kids to middle school for language arts because it is easier to work with kids at different levels in language arts.
