In our district, loop classroom is when the kids move with the teacher to the next grade. DS was offered to loop w/ his K teacher to 1st grade. I declined. The teacher was a horrible fit for him. Everyone else looped b/c they were afraid of hurting the teacher's feelings by not looping then several of them complained all year about the teacher. If you have a great teacher, I think it's a plus. If the teacher ain't so great, then child will spend 2yrs in a not-so-great (unchallenging for DS) environment.
