What's the dumbest or most inaccurate thing you've ever heard a teacher say?

1. IDK if this counts, but I had a really dumb teacher who would always teach from a book. So one day he was telling us about how the toilets in Australia flush the other way. So he then talked for ten minutes about how it was because of Australia being in the Southern Hemisphere (Because that's what the book said). THEN the book did a huge 180 and said how it was all just a myth and it was not true. So the teacher just stood there defeated and then moved on. So he pretty much was dumb enough to go on and on about one part of the book said, and then instantly get corrected by the book itself.
   — Amlik


2. When I was six years old, we got a fun little "make and answer your own maths question" exercise. I wanted to show the teacher that my dad had shown me how to do additions and subtractions below zero. "1-3=-2" was marked as incorrect, because apparently "you can't do maths below zero". "But Mrs. H what about temperatures on the weather forecast?" "That's different, that's not maths"
   — KleineSandra


3. My siblings had a history teacher who literally skipped the unit on Asia with the explanation “nothing important ever happened in Asia”....
   — literaturenerd






4. I took a typing class over the summer in middle school, and the teacher penalized me for using my left thumb for the space bar. When I objected that I’m left handed, she replied, “But the book says it has to be your right thumb.” I actually learned a lot from that interaction, though nothing about typing.
   — ypsm


5. Way back, in the mid 1960's, my 5th grade teacher said that pineapples grew on trees and coconuts grew on vines, like grapes. Having just moved from Hawaii to Massachusetts, I got in trouble for pointing out how wrong she was on both counts.
   — broiled


6. 4th grade. Social Studies test. Bonus question: "Name one Supreme Court Justice". Mind you, this was ~early 2009. I had no fucking clue. So I put down Sonia Sotomayor, since we'd all read about her in class. Obviously wrong, since then, she was a nominee, not an actual judge, so my answer got marked wrong. Some kids put down Judge Judy. They got credit. When I asked why mine was wrong, she said it was because she wasn't a judge yet. But apparently Judge Judy was.
   — awesomehippie12






7. Had a college professor tell the class that there was no such thing as albino animals. He was blind.
   — 0w1


8. Had a professor who didn’t know “ire” (noun: intense anger; wrath) is a word. I used it in a paper, he violently circled it in red pen, put a question mark next to it and wrote “not a word” in the margin. How was this man a college professor?!
   — SirRaphaeloftheBay


9. Second grade. We were writing words that started with B. I wrote Bazooka. Teacher comes over, gives me a red mark over it and tells me there is nothing called that. F you bitch, I was right.
   — Drublix






10. My high school American History teacher went on a 40 minute, hate fueled rant about how useless and stupid buffalo are.
    — buymegladioli


11. Art history teacher informed me that the entire Earth was only 215 years old
    — MacDthree


12. My grade 10 science teacher told us that the uterus is part of the excretory system during the biology unit. Someone asked the teacher if he didn’t get something mixed up, but he just doubled down on it.
    — excaliburcat






13. I can still remember my 8th grade teacher saying, to a room of lower and middle lower class students and some downright poor as hell, that you couldn't survive off of less than 40k a year. (15 years ago). Knowing full well that my parents didn't make that much and I still had 3 meals a day, nike's once a year, and a roof over my head. It still bothers me for some reason.
    — guaca_molly


14. A little late to the party, but holy shit do I have this one. Teacher is projecting a microscope onto a huge screen. Every time she'd put the light on this organism, it'd shy away. She asked the class what that meant and, me being the educated man I am, raised my hand and told her it was photophobic. She then informed that was false, and that it was actually afraid of light. This is the same woman who did not like multiple choice because you could guess right 25% of the time. So she made all her exams true/ false. That way you either know it or you don't. Here's the best part, that was when I was a junior in college. This woman had a doctorate.
    — DefNotARob0t


15. There was a teacher at my high school who was positive that George W. Bush’s middle name is Washington (it’s actually Walker). She got in an argument with a student and pulled up his Wikipedia page, then asserted that somebody edited the page with the wrong info and that she was still right. Tenure is the only reason she’s still employed.
    — marcopolo22






16. An old English teacher of mine said with confidence that the International Space Station could fit in a classroom.
    — JohnHBicep