I can only speak from our end since my daughters four years older.She got tested and got into the district wide gifted program in third grade. Only 7 out of possibly 100 kids ( there are 22 k-6 schools) got in and probably 1500 overall in her grade in the district. The difference now is that the k-6 schools have more kids involved in in-school gifted services than they did when my daughter was younger. I don't know if MAP testing will help make a case for you. Frannie may be a better judge. I do know that now the kids with higher MAP scores don't necessarily get the better grades. In our district there aren't letter grades till 4th grade and I think that can makes things more difficult. in regards to common core I do think it has an effect in our district but in our daughters case she's beyond the point it matters. I believe there are some isolated cases of kids taking algebra in 5th grade but typically only 6th grade magnet (gifted) kids take it our district. other people on the forum may know about other test scores because we didn't have to do anything to get into the program
