Using the newer MAPS chart, those scores are above the 99th percentile for grade assuming that they are fall MAPS scores. The 3rd grade one is higher than the 4th which is what we saw for my oldest in Math MAPS as well from fall to spring in 4th primarily b/c they didn't teach her anything in math that year.
Is she being accelerated in math at all or are her CogAT scores something that the school considers strongly in acceleration/advanced classes?
My oldest's weakest area is math and, while I can't recall her MAPS scores exactly (she only took MAPS twice -- at the start and end of 4th and she a 9th grader now), I do know that they weren't as high as your dd's. She's still done very well with one year of acceleration in math. She skipped a grade which, effectively, subject accelerated her in math since she was going up at least a year in everything.
