Teachers have a great deal of control over the future adults of the world. Unfortunately, sometimes they can give out the wrong information, whether it's by accident or not.
From Pluto's status to the availability of calculators in the wild, here are 12 things people learned in school that turned out to be false.
That there would a "permanent record" of anything that we did wrong (in primary school, at least; I know universities will absolutely fuck you up if you're stupid enough to plagiarize). - Medical-Seaweed
The "tongue map" (link), where certain tastes were believed to only be detectable on certain parts of the tongue. Absolutely untrue. Plus the realization of a 5th taste (umami). - PSquared1234
I was taught that glass is actually a very dense liquid, and this is proven by old glass panes being thicker at one end. It's just flowing extremely slowly, you see.
But it's really just that glass was made differently back then. Glass is solid. - seventeenblackbirds