From the standpoint of school board reporting, they want to know how he is doing compared to a public school-educated student of the same age...because, yk, those homeschoolers, they don't teach their kids anything...
I would imagine the same applies to DYS (for different reasons, of course!)
Good to know he's at the 95%ile for the skipped grade, which means you're definitely not putting him in over his head with regard to his instructional level. A number of school systems in NA actually use this as part of the testing standard for double promotion (scores at least 95%ile on an achievement test normed for the receiving grade).
