Honestly, at this point in the year, is it really worth doing anything about?
The answer probably depends on the age of the child, his/her disposition, and how professional/flexible the teacher is in general otherwise. Is it actively harmful to leave things alone until the end of the year?
Given the hostility that you're encountering, I'd step back and ask if there is another way to frame your educational concerns, sidestepping the label that she is finding objectionable. I wonder why she has the opinion that she does? Perhaps she has direct experience with genuine push/helicopter parents?
