• ArbitraryValue@sh.itjust.works
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    4 months ago

    I’m a biochemist and I think the periodic table is easy to memorize. “Hydrogen, blah blah blah, carbon, nitrogen, oxygen” and that’s it. Wait, hold on, sodium and chlorine are also on there somewhere…

    • The_v@lemmy.world
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      4 months ago

      My undergrad biochemistry course was taught team taught by a microbiologist and a molecular biologist because the biochemist got fired for sexually harassing a few students.

      The molecular biologist was a cool guy and taught concepts. I got an easy A in that section.

      The next few weeks were taught by the microbiologist. That asshole wanted us to memorize a ton of different pathways on our second midterm (cyclic acid, fermentations, photosynthetic, MAPK etc…). Something like 20 total. I took an F on that one.

      Luckily the final was a standardize test that all universities in the state used that year. So I ended up with a B.

      • ArbitraryValue@sh.itjust.works
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        4 months ago

        I don’t understand the “memorize the pathways” style of teaching.

        I’m not one of those people who says “Why memorize anything when you can look it up?” That doesn’t generally work because (1) you need to know that a fact exists at all before you can look it up, (2) a lot of problem-solving is done by your subconscious, which of course can’t look up anything, and (3) often you can’t see the big picture until you have learned enough of the pieces, even though learning the pieces seems like arbitrary memorization while you still don’t know enough of them.

        However, I still don’t see any point in memorizing lists of arbitrary alphanumerical protein names. Knowing the pathway’s purpose, inputs and outputs, and any key intermediates is sufficient. I can’t think of any scenario where a pathway isn’t the focus of your research but being able to recall the names of all the enzymes and the order in which they act (as opposed to looking them up) is useful in practice.

        (But maybe I’m the one who is ignorant of the practical applications of that knowledge… All I can say is that there has been no need for it during the course of my career so far.)

  • norimee@lemmy.world
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    4 months ago

    We had the periodic table in huge letters on the wall of our chemistry classroom. Wouldbe difficult to not allow students to use it during tests.

    One of my nursing school teachers used to say “You don’t have to know everything, you just have to know where to look it up.” I always thought that’s very good and practical advice.

    • dev_null@lemmy.ml
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      4 months ago

      Same.

      So during the test the teacher listed element names out loud with no pauses, and you were supposed to write down the symbol while she was speaking, and then another list in reverse. After the last element we had to immediately put the pens down. Whole test took ~45 seconds for 30 elements.

      This was so that it was impossible to read from the big table on the wall, you had no time to look away from the paper. You’d miss the next 3 elements by the time you looked away to find the one.

      • norimee@lemmy.world
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        4 months ago

        Honestly, that sounds insane. And incompetent.
        Whoever made this a requirement did not have in mind to give you a good and useful education.

        • dev_null@lemmy.ml
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          4 months ago

          Honestly, that sounds insane.

          There is a reason I remember that one test many years later.

        • bluewing@lemm.ee
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          4 months ago

          Not really. As a former math teacher, I used to have kids do speed drill quizzes very similar to that elements chart drill a couple times a week. As in how many basic facts, (addition, subtraction. multiplication and division), with the correct answer can you do in one minute. There are just some basic skills you really need to learn and master before you can move on and learn how to blow things up.

          The point of the quiz was not to expect you to get them all correct all the time or even get to the end of the quiz, (I was aiming for 30 correct answers in that one minute out of maybe 60 or 70 problems). But the idea was to build a very basic skill set for you. And so that you wouldn’t be afraid of the numbers, (this is a real stress point for students), and to lessen the fear of learning and adding to your skills by eliminating the stress of where to start. If you confidently know what 7x3 is, that’s one less detail you need to work out and worry over when doing a math problem, (another stress point for students).

          Education methods sometimes seem dry and useless and even mean to a young student. But they do actually have thought and reason behind the why a teacher might do something. I could never be bothered to try and teach you something that was pointless. I simply didn’t have the time for that kind of effort. Nor do the vast majority of teachers in a classroom.

    • bluewing@lemm.ee
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      4 months ago

      But before you can look it up, and I’m all for it, you need to know something is possible. That’s what education does for you.

  • SpiceyDejarik@lemm.ee
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    4 months ago

    I was a chemistry major in college. The tests all came with a periodic table for reference. Didn’t have to memorize a thing. We were even allowed to use calculators! High school was full of lies.

    • bluewing@lemm.ee
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      4 months ago

      I have nothing against calculators. But I have taught some elementary and jr high school math classes in my old a feeble age. The “why can’t we use calculators” and " what do I need to know this for" was a constant whinge I had to listen to and deal with.

      Why I want you to know how to solve a quadratic equation isn’t because that’s what you are going to do for the rest of your life. But rather, I want you to see something like that in the far future and go “Oh, I know what this and that it isn’t gibberish. And I can whip out that smart phone I got and google it to find the howto steps to solve it.” And I want you to acquire the discipline to learn things. Besides, just knowing what 7x3 is, makes everything else so much easier to learn in math. That removes fear and stress point and builds the confidence to tackle more complex ideas.

      I probably own more calculators than most here. So, I’m all for them. And I did always allow any student to use a calculator in class. I would just hand you a slide rule…(and yes, I’m that old to have used them in class as a kid and I still own a couple). But, when I was teaching, I really wanted my students get their fingers dirty with the numbers themselves and to learn how those numbers work. While getting the correct answer is very important, as a teacher, I was perhaps less concerned with the correct answer and more concerned with HOW you got that answer. Because if you know what you did to get that answer, you are far more likely to get the right answer than the wrong answer.

      In the end, I think education needs to be approached from the idea of making learning more fun. No matter the subject. Sadly, that’s a very difficult trick for any teacher in the typical class room to accomplish.

    • Comment105@lemm.ee
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      4 months ago

      School is supposed to prepare you for solving chemical problems in a tent in the woods with nothing but paper and pencil and meager rations.

      Involving civilization, literature and tools is entirely unsuited for the end goal.

    • bluewing@lemm.ee
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      4 months ago

      I have nothing against calculators. But I have taught some elementary and jr high school math classes in my old a feeble age. The “why can’t we use calculators” and " what do I need to know this for" was a constant whinge I had to listen to and deal with.

      Why I want you to know how to solve a quadratic equation isn’t because that’s what you are going to do for the rest of your life. But rather, I want you to see something like that in the far future and go “Oh, I know what this and that it isn’t gibberish. And I can whip out that smart phone I got and google it to find the howto steps to solve it.” And I want you to acquire the discipline to learn things. Besides, just knowing what 7x3 is, makes everything else so much easier to learn in math. That removes fear and stress point and builds the confidence to tackle more complex ideas.

      I probably own more calculators than most here. So, I’m all for them. And I did always allow any student to use a calculator in class. I would just hand you a slide rule…(and yes, I’m that old to have used them in class as a kid and I still own a couple). But, when I was teaching, I really wanted my students get their fingers dirty with the numbers themselves and to learn how those numbers work. While getting the correct answer is very important, as a teacher, I was perhaps less concerned with the correct answer and more concerned with HOW you got that answer. Because if you know what you did to get that answer, you are far more likely to get the right answer than the wrong answer.

      In the end, I think education needs to be approached from the idea of making learning more fun. No matter the subject. Sadly, that’s a very difficult trick for any teacher in the typical class room to accomplish.

    • Console_Modder@sh.itjust.works
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      4 months ago

      Luckily I had a teacher that thought it was bullshit we had to memorize the whole table and “forgot” to cover the wall-sized poster of the periodic table during the exam

      • eronth@lemmy.world
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        4 months ago

        Yeah I’m vaguely remembering something similar. I have these faint whispers of a memory of my teacher forgetting (or probably, “forgetting”) to cover something on the wall during a memorization test.

    • ornery_chemist@mander.xyz
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      4 months ago

      Most chem PhDs don’t even know the whole thing lol. We had to memorize just the symbols in high school, but positions weren’t required. In my grad-level inorg course, the first test was a blank table that we had to fill in, but even then the f-block and transactinides were not required.

      • MrJameGumb@lemmy.world
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        4 months ago

        It worked so well I managed to retain that knowledge for almost a full week after we were tested on it lol it’s all gone now

  • kireotick@lemmy.world
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    4 months ago

    I’m so glad Swedish schools have mostly ditched memorization (maybe too much sometimes though)

  • Etterra@lemmy.world
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    4 months ago

    Teachers in the 90s: you won’t always have a calculator.

    Me now: you were saying Ms. Knowitall?

    • tinycalcifer@lemmy.world
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      4 months ago

      That was a short answer that turned out to be mostly wrong. The longer answer is “if you don’t understand how this works, you won’t have the intuition to notice when you get absurd results from the calculator”. If you don’t have that intuition, then when you inevitably make a small usage mistake on a calculator (or in matlab or wolfram alpha or whatever), you’ll end up not realizing that you got a clearly wrong answer.