The Iowa manual won't be helpful to you at all unless you have individual achievement and IQ testing. If the school is willing to do the testing, then the Iowa manual would be useful. But if you believe they won't do the testing, then it's not going to help.
Do you have her MAP testing data? If so, there are lots of links on here with national percentile norms. If she's scoring in the 90th and above for the NEXT grade up, or if she's scoring 90th above in her own grade in both areas, then you have a place to start advocating from.
