The short answer is that she is at or near the ceiling of the test in both measures, and probably needs to look at some out-of-grade level testing to have a better sense of growth, such as the next level of MAP (gr 6+). She didn't approach the ceiling in math until spring, which is why there was movement there.
You might find this linking study on MAP and college prep testing (ACT, PLAN, EXPLORE) interesting. Look at the chart on page 4:
http://www.nwea.org/sites/www.nwea.org/files/ACT_LinkingStudy_1%2017%202012.pdf
