Wasn't my teacher but my brother had an AP world history class where the teacher couldn't be fucked to pronounce Chinese names correctly - went off about "Zee Jinping pong [RACIST RHYME WITH PING PONG] who cares..."

I had a libertarian history teacher in HS who had the class watch V for Vendetta and had the class do projects about it; she was convinced the regime in V was a leftist state.

Maybe some people shouldn't be allowed to teach impressionable kids.