Comment on I dunno

• Cethin@lemmy.zip ⁨1⁩ ⁨day⁩ ago

  I don’t think you’re right. The wiki page literally uses a similar equation as an example of “elementary arithmetic.” It also uses a similar one, but with variables, as an example in “elementary algebra.” That implies that yes, this is arithmetic, and the introduction of variables is what makes it algebra.

  It doesn’t matter what course finally teaches it to you. That could be just out of convenience, not by definition part of that domain. It’s been ages since I took it, though I could swear I learned this in pre-algebra (meaning before algebra), or earlier. I could be wrong on this though. Again, it’s been a very long time.

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  • SmartmanApps@programming.dev ⁨1⁩ ⁨day⁩ ago

    I don’t think you’re right

    You don’t think Maths textbooks are right??

    The wiki page

    is full of disinformation. Note that they literally never cite any Maths textbooks

    as an example of “elementary arithmetic.”

    And whichever Joe Blow My Next Door Neighbour wrote that is wrong

    as an example in “elementary algebra.”

    Algebra isn’t taught until high school

    That implies that yes, this is arithmetic,

    No, anything with a(b+c) is Algebra, taught in Year 7

    the introduction of variables is what makes it algebra

    and the rules of Algebra, which includes a(b+c)=(ab+ac). There is no such rule in Arithmetic.

    It doesn’t matter what course finally teaches it to you

    It does if you’re going to argue over whether it’s Arithmetic or Algebra.

    not by definition part of that domain

    The Distributive Law is 100% part of Algebra. It’s one of the very first things taught.

    It’s been ages since I took it

    I teach it. We teach it to Year 7, at the start of Algebra

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    • Cethin@lemmy.zip ⁨1⁩ ⁨day⁩ ago

      You’re very rude. Also, Ill informed, and you think you’re smarter than you are. For example, this:

      as an example in “elementary algebra.”

      Algebra isn’t taught until high school

      Elementary doesn’t mean elementary school. Do you think elementary particles are the ones they teach you in elementary school? Lol. Elementary means fundamental or basic.

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      • mindbleach@sh.itjust.works ⁨1⁩ ⁨day⁩ ago

        The clouds could part, revealing an unmistakable divine presence, where a herald of angels trumpet, and the creator of the universe tells this guy he’s being a hypocritical crank, and he’d bicker until god himself said “Stuff this” and moved on.

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      • SmartmanApps@programming.dev ⁨1⁩ ⁨day⁩ ago

        You’re very rude

        What do you expect to happen when you call a Maths teacher wrong about Maths?

        Ill informed

        Maths teachers are ill informed about Maths?? 😂

        Elementary means fundamental or basic

        Which therefore contradicts your argument about it being part of Arithmetic, which is taught in elementary school, Algebra isn’t

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