Your problems mostly stem from the fact that your son's teacher doesn't know his elbow from his ass, mathematically. Which, given the current climate, is unsurp

Your problems mostly stem from the fact that your son's teacher doesn't know his elbow from his ass, mathematically. Which, given the current climate, is unsurprising, as anyone with a basic understanding of mathematics will run[1], not walk away from a teaching job. Unfortunately, it's a valid criticism. More unfortunately, switching to another standard for teaching math isn't going to solve this. [1] Why be society's punching bag, on the front-lines of an insane litigation and culture war, have your heavily-backloaded pay be contingent on putting up with decades of this kind of bullshit, all while trying to do a mixture of teaching and social work?