• Droggelbecher@lemmy.world
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    4 hours ago

    I’m shocked that the US only adopted this in 2009. I’m pretty sure my mum, who went to primary school in the 70s, recognized number lines when I was taught to use them on 2005ish. I’m having a hard time imagining how else you’d explain it.

    • dandelion (she/her)@lemmy.blahaj.zone
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      4 hours ago

      look, we work very hard on being reactionary here in the U.S., we’re a world leader in reactionary politics, and not teaching math well is crucial to keeping a vibrant slave worker population, otherwise they might start, you know, thinking for themselves