So we are asking for DS6 to go from 1st to 3rd grade math now. DS was given 2nd grade assessment and 3rd grade assessment. He did well on the 3rd grade, not the 2nd grade. The school wants to send him to 2nd grade, not 3rd grade math now. Any suggestions on how to get them to understand how counterproductive this is?

DS has been tested, is PG. He has scored within the average range on the MAP test for a 4th grader. I have shared the results of all tests with the school and thought that they understood. Clearly they don't. Help!