My daughters a 6th grader and has taken NWEA test three times a year (winter) since kindergarden. Her scores from the period you gave went from 221 to 244.(end of first - Beginning of fourth). Maybe others can correct me but I thought the change happened in second grade not third. I would be asking why aren't they teaching stuff that isn't going to be on the NWEA. It sounds to me the teacher is just making an excuse since it doesn't appear your daughter is having problems with the other areas of NWEA.