I have a funny story about "new math". ~18 years ago my son was struggling with long division. I was always pretty good with math, so I was helping him. Soon I realized he was using some convoluted way of doing it, and he said that was how his teacher taught them. After awhile I decided it was BS, so I showed him the more direct and easy way I learned ~55 years ago, and I told him to do it my way, and
if his teacher objected then I told my son to tell his teacher I wanted to talk with him. Well, my son went straight to his math teacher and said "
my dad wants to talk with you". The funny thing was, I never did hear from the teacher!
