The same was done for my DS. He was reading 2nd grade books in K (highest teacher would go) but the teacher focused on his writing skills which were actually above grade level. So while his books were not challenging, he had to write main character, conflict, setting and resolution. But he was at least at the highest reading level allowed which was 2grades above. The poster indicated the teacher is in fact keeping her DS in the lowest reading group even though he's the highest reader of all K classes. Those are two very different things.