That's why I bit my tongue and haven't asked her about her experience. As far as how I know DS is faster, it's all hearsay from DS. The kids are told to walk their papers to her desk as soon as they are done. DS feels a bit awkward and tries to drag it out by double-checking everything but the teacher is still working on the problems when he drops off his paper although she does usually announce pretty soon afterwards that she is done. It would be better for DS if the teacher completes the problems beforehand.