• Max-P@lemmy.max-p.me
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    5 months ago

    That’s the smart way to do math. I mean not with such small numbers but you’d do the same thing adding up large numbers, you break down the numbers and rearrange them in a way that’s easier to compute.

    Algebra probably feels intuitive to you.

    They’re also trying to teach that in math classes (it gets called “new” math) but the boomers are freaking out because “why can’t they just do normal additions like we used to, this is so complicated”. And the answer to that is, 99% of the time you’ll be doing algebra because we literally all carry a calculator in our pockets and sometimes on our wrists at all times and we never need to just do a long division. And that kind of thinking really makes it easy to break down formulas because your brain thinks in terms of moving stuff around in an equation.

    • Gigasser@lemmy.world
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      5 months ago

      I think the reason “new math” gets flack, is because it’s a new way of teaching math, and alot of teachers aren’t as good at teaching in that way yet. Still, kids should be taught that it can be a way one does calculations. Another thing I think should be incorporated into early childhood education is the use of an abacus, the Japanese do this and it supposedly helps greatly with mental math.

    • MelodiousFunk@slrpnk.net
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      5 months ago

      They’re also trying to teach that in math classes (it gets called “new” math) but the boomers are freaking out because “why can’t they just do normal additions like we used to, this is so complicated”.

      So, as a childless Xennial, I have to ask… is today’s “new math” the same “new math” that people complained about in the 60s?

      https://youtu.be/W6OaYPVueW4

      If so, that’s an awfully long time for something to be shunned as “new.”

      we never need to just do a long division.

      Truth. I recently got a neuropsych evaluation and part of it was an unexpected (to me) IQ test. And staring me in the face, for the first time in ~30 years, was a few pages of arithmetic problems. Took me a minute to recall how to do decimal multiplication but it did come back to me. Long division? Nope. Had no freaking clue. Given that it was timed I just left blank anything I couldn’t work out in my head. Maybe if I had time for trial and error I could have eventually figured it out. But one thing is for sure… the odds of me ever needing that skill again are fairly low.