Holy smokes! That teacher would be triggering my throttling instinct. Your composure is commendable.
My composure lasted until December or so. I'm pretty much a
persona non grata with the administration at this point. The straw that broke the camel's back was last month when I told the principal that I'd visited other private schools and had been told to expect that my kids would have to be remediated in math. This news came from teachers at other schools and parents of former students at our school. He did not like that statement AT ALL.
