My son came home with retard math as homework. It had blocks, it had 'friends' it was made for a group that usually counts and sells crack and cant do math because its racist.

So I showed him the proper way to do math in a couple of steps. The god damn teacher marked it wrong. My son had no trouble doing proper math, but the 'math for them' he just could not do. At the next parent teacher meeting the asshole math teacher tried to say my son was slow and needed special ed because he ccould not do the math. I lost my shit, threatened to sue and generally freaked out. My wife said the teacher looked scared, I was too mad to notice. His correct math methods I was showing him were accepted after that lol