That's so nice that both your DCs are DYS. Mine will not. While DS7 is DYS, DS9 is close to MG. So going forward we will have challenges as DS7 maybe taking more advanced subjects in school than DS9.
Currently they are two grades apart. DS9 is taking challenged math so he's half grade accelerated. When I asked the school for individualized learning plan for DS7, they did mention that they could have put him to the same class that DS9 is taking but one of the reasons they did not is because DS9 is in that class (besides they want to make sure he doesn't have any gaps and gets familiar with the math vocabs before getting more accelerated). I agree with that decision. So DS7 will start the third grade challenge math in 2nd grade when DS9 will be in a different class and different campus.