Originally Posted by ConnectingDots
Also, does anyone know what happens or how to register if there is single-subject acceleration? DS is in fourth for half of the tested areas, sixth for the others.

Which state are you from?

Texas has K-12 testing centers that you can take the test and move up. But you will face nightmare with taking 4th grade LA and 6th grade Math in public school crossing between elementary and middle schools. It gets easier in MS if they offer HS classes. Even in the same State, some school districts are rigid and won't accomodate. So, please check with your district.