I am a little puzzled regarding my kid in 1st grade. She is a usual cheerful 1st grader with a splattering of A's, B's and C's in her reports. But she just took her MAP test in 1st grade (After taking it once in Kindergarden). Her teacher says she is scoring at the 50% percentile for 4th Graders in both Math and Reading. Can someone explain this? I know she is no Gauss.