this post was submitted on 10 Apr 2026
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Science Memes

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[–] marcos@lemmy.world 50 points 1 week ago (2 children)

If you are talking about school curriculum, nearly the entire population will keep not learning it as long as it doesn't have some practical application so people can understand WTF the teacher is talking about.

[–] PabloSexcrowbar@piefed.social 41 points 1 week ago (3 children)

Not sure why you're getting downvoted. Having practical applications for higher math makes that shit stick like glue when otherwise it would get forgotten immediately after the test.

[–] marcos@lemmy.world 18 points 1 week ago (1 children)

Apparently knowing people learn differently and that mathematicians are a tiny minority is neoliberal...

[–] PabloSexcrowbar@piefed.social 3 points 1 week ago (1 children)

Welcome to the Fediverse, I guess.

[–] nomy@lemmy.zip 7 points 1 week ago

I use Arch btw.

[–] justastranger@sh.itjust.works 3 points 1 week ago

As the experts say: "Use it or lose it."

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[–] definitemaybe@lemmy.ca 32 points 1 week ago* (last edited 1 week ago) (6 children)

Citation needed.

Seriously, though, that's not what the research is showing. Peter Liljedahl's research, for example, supports that a very effective way to teach mathematics is by having students actually think about math, instead of just passively receiving info dumps (as is common in most traditional math classes). See Building Thinking Classrooms for details but, in short, it's a method of getting students playing with math concepts for almost the entire class time every day.

No "practical applications" needed. Counterintuitive, but it's a highly effective practice.

What's core to practical applications working is student motivation, and practical applications are one way to induce motivation. But it's often not the best option, especially for inherently abstract skills.

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[–] saturn57@lemmy.world 39 points 1 week ago (8 children)

It is sad that the general population is unable to see learning math as good in of itself. Not everything must be solely "practical."

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[–] HexesofVexes@lemmy.world 30 points 1 week ago (1 children)

I'm the guy in the background saying "go back to teaching Euclid and proof in schools", as the real point was to teach logical deduction from established facts.

[–] Whats_your_reasoning@lemmy.world 8 points 1 week ago (1 children)

Logic puzzles should be applied in more classrooms. Start with simple problems in elementary school, and progress to more challenging ones as students grow. Critical thinking needs to start early.

[–] HexesofVexes@lemmy.world 5 points 1 week ago* (last edited 1 week ago)

A lot of the issue with logic problems is the "common sense" element required. With purely geometric problems, there are less of these to worry about.

Chess problems also work well to teach logical step application.

[–] mlc894@lemmy.world 26 points 1 week ago (2 children)

People who want school to be practical scare me.

[–] A_Chilean_Cyborg@feddit.cl 30 points 1 week ago

yes, practical skills change year to year.

what's important is to learn to learn.

[–] Sunrosa@lemmy.world 11 points 1 week ago (2 children)

I'm genuinely curious why, if this is serious. I feel like adulting badly needs to be taught better. I'm nearing mid twenties and still get so confused at a lot of adult things, especially government shit, because it's just so much to figure out for the first time.

It's definitely important to teach math and science and language, and to teach people how to do their own research, and think, and learn, etc. But are you saying practical skills shouldn't also be taught?

I interpreted it as a criticism of those who think there's no point to learning something if there isn't an immediately-obvious application for that knowledge. Like those who say, "What's the point of learning history? I'm not going to become a historian," as if learning needs to have a clear end-goal or else it's useless. Or those who think it's pointless to learn to play an instrument because you're not going to become a famous musician. It's a mentality that ties in with capitalism, where if you're not being productive, you have no use.

A well-rounded education should equip students with skills they can apply independently no matter what they do. Learning history provides context for the world we live in, why it is the way it is, and can inform us on how to move forward. Learning to play an instrument builds new connections in the brain, strengthens fine motor skills, and (in the case of reading music) how to move information between abstract concepts and a tangible form.

These skills provide benefits to people that can be built upon in the future. They may not have immediate usage to a student, but they create a foundation upon which a student can reach higher as they progress in life. Not every lesson is practical in the moment, but that doesn't mean it can't have value to a growing mind.

[–] frisbeedog@lemmy.world 12 points 1 week ago (1 children)

If anyone taught you how to do your taxes at school age I bet you'd forgotten all about it by the time you needed it

As OP said, what's important is to learn to learn

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[–] for_some_delta@beehaw.org 24 points 1 week ago (2 children)

One of my math professors sugggested adding a formal logic class to early childhood education.

[–] Kratzkopf@discuss.tchncs.de 19 points 1 week ago

One of my math professors told us that when he started elementary school they tried starting maths classes with logic and combinatorics, because they were most essential maths and in principle could be experienced by children by seeing, feeling etc. He said it was a stupid approach. I say he turned out a math professor, so maybe it worked.

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[–] 33550336@lemmy.world 19 points 1 week ago (1 children)

Math should be fun no matter it has practical applications or not. Math is an art, not a trade to make money. For those narrow minded 'practical' people, even pure math has sooner or later some applications.

[–] Draconic_NEO@mander.xyz 8 points 1 week ago

This is the most important part, especially when teaching math to children. The practical aspects of math (beyond arithmetic counting with basic addition and subtraction) are not going to be fully realized until one is an adult, so they aren't going to be a motivator for learning math.

It needs to be fun and engaging for them to want to keep learning and engaging with it.

[–] QuinnyCoded@sh.itjust.works 17 points 1 week ago* (last edited 1 week ago) (1 children)

I'm with the pink guy, fight me

[–] jacksilver@lemmy.world 36 points 1 week ago (3 children)

I'm always wary of the idea learning should be "practical". You never know when something will matter and there is an intrinsic value in learning for learnings sake.

Learning needs to be tangible, but I'm not sure it necessitates practicality.

[–] Contramuffin@lemmy.world 12 points 1 week ago (1 children)

Sure, but learning tends to be easier when there's a practical application to the things you're learning

[–] definitemaybe@lemmy.ca 24 points 1 week ago (1 children)

That kinda breaks down in practice, though. Math is hard for a lot of students. Adding an extra layer of domain-specific application on top of an already confusing topic just makes it worse.

Like, we need polynomials for huge swathes of higher-level math. My favourite application of polynomials is that most continuous functions can be approximated by a Taylor series, which makes some functions that are otherwise impossible to calculate a derivative or integral trivially easy. It's elegant, beautiful, and deeply practical.

And completely useless for a grade 8 student learning about polynomials for the first time.

Sure, there's lower-hanging fruit for practical uses for polynomials, but they're either similarly abstract (albeit simpler) or contrived. Ain't nobody making a sandbox with length (3x + 5) and width (2x – 7), eh?

I could go on. At length.

Point being, yes, practical applications are better. BUT (and this is a big but) only when there are simple practical applications.

Instead, recent math education research supports teaching fluency through playing with math concepts and exploring things in many ways: symbolically, graphically, forwards and backwards, extending iteratively with increasing complexity, etc. This helps students develop intuition for math concepts and deeper understanding. Then, and only then, teach the standard algorithms and methods, as students will appreciate the efficiency of the tool and understand what they're doing and why they're doing it.

Thank you for listening to my TED Talk.

[–] gandalf_der_12te@discuss.tchncs.de 3 points 1 week ago* (last edited 1 week ago) (1 children)

Polynomials:

They exist because they are efficient to compute. Computers do well with basic arithmetic operations like addition (+) and multiplication (*). The polynomial functions are simply those that you can construct from those two operations, and constant numbers.

Like consider a polynomial like f(x) = 5x^3 + 3x^2 + 2x + 7

What it really says is f(x) = 5*x*x*x + 3*x*x + 2*x + 7 and here you can see how it's all built from + and *.

This is why polynomials are useful. Because computers have an easy time calculating them. And all modern mathematics is done on computers. All the engineering uses computer simulations, and we want these simulations to run fast on computer hardware, so we make it easy for computer hardware to do. That is why we're using polynomials wherever we can.


That is how you explain polynomials to 8th graders. No taylor series / calculus needed.

If you want to be really fancy you can show the taylor series of the sine and cosine function as a polynomial and how to compute it on a computer. Gives some pretty graphs, is simple and fun.

Just tell them that polynomials can be used to computer sin and cos functions without going into the details of why that works first.


Edit: Just to clarify this: Yes i think that explaining why students should learn stuff is extremely important. In fact i tend to say that the only thing that you really have to do is to motivate the students to learn; then the learning happens by itself.

However note that giving esoteric abstract playful descriptions of things in my opinion does not motivate people to learn stuff. That just makes them go "huh, neat but useless". Giving real world practical examples fulfills exactly the purpose of giving students a reason to learn stuff. Because seeing how one can solve real problems with the tools, one learns to value the tools.

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[–] fluffykittycat@slrpnk.net 5 points 1 week ago

The hidden Factor here is coercion, if you don't go to school the cops will literally show up at your door eventually. In light of that it's completely reasonable for the people who have no choice but to be there to ask what purpose it serves

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[–] theywilleatthestars@lemmy.world 13 points 1 week ago (2 children)

I'm always for the feckless hippie over the neoliberal sellout tbh.

[–] SpaceNoodle@lemmy.world 9 points 1 week ago (2 children)

What about feckless hippies that sold out to the neoliberals?

[–] theywilleatthestars@lemmy.world 6 points 1 week ago (1 children)

I mean, that's the sellout part

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[–] jimmy90@lemmy.world 3 points 1 week ago

or the commie that runs out of martyric protest

new words: martyric

heard it here first folks

[–] chatokun@lemmy.dbzer0.com 9 points 1 week ago

Except a lot of those switched to antiscience antivaxers, and some bridged from there to facists. While I do also prefer hippies, antiknowledge and antiscience types scare me.

[–] thesmokingman@programming.dev 12 points 1 week ago

Forgive me, I’m not super versed on Dewey’s mathematics ideas. Quick skimming of some articles and papers seems to suggest he was very practical and wanted kids to tie into the real world. How does that differ from the pink side? Both, to me, seem the opposite of classical logic training.

[–] HasturInYellow@lemmy.world 10 points 1 week ago (6 children)

From reading some of the comments here, it seems that some people think learning is a net negative or neutral for whoever is doing the learning and that one should learn as little as possible.

They seem to think that because they don't literally write down the equation of "x²+6" that they never use it in their lives and so it is pointless to learn.

There are also people who seem to think that basing your education off of what could help you not being taken advantage of, or misunderstanding the world around you, is silly and you should only follow what is in your heart. Learning what interests you and nothing else.

I don't understand either of you, idiots.

Debate me, I guess.

[–] captain_aggravated@sh.itjust.works 8 points 1 week ago (2 children)

Debate me, I guess.

As per your instruction, I shall.

I am a certified flight instructor, I have studied the fundamentals of instruction and can speak with authority on the subject.

it seems that some people think learning is a net negative or neutral for whoever is doing the learning and that one should learn as little as possible.

Learning is an active process. There's a reason for turn of phrases like "spend time" and "pay attention," these actions aren't free. Any act of learning comes with a real cost in time, energy and likely money. It also comes with an opportunity cost. The time and effort a student spends learning could always be spent doing something else; resting, playing, working, caring for family, or learning something else. It is possible for those costs to be so great as to be a genuine net negative for the student. Especially when the reality of formalized school comes into play.

One of Edward Thorndike's six fundamental principles of learning is the Principle of Readiness. This ties into Maslowe's hierarchy of needs. As a teacher, you have to always ask yourself "Where on their pyramid does my lesson fit? Is everything below that on their pyramid of needs well taken care of?" Your students will not be willing to pay attention in algebra class if they're hungry, thirsty, sleepy, freezing or scared, because their needs for homeostasis and security aren't being met well enough for an intellectual lesson such as higher math.

Okay, we got the kids fed, rested and secured. Now they should pay attention right? Nope. That isn't good enough. Where on their pyramid does this lesson fit? What need of theirs will learning this satisfy? Genuine curiosity about the universe and its workings are always always always at the stabby point of the very tippy top of the pyramid, you want to satisfy that need you've got to categorically solve every other need these kids can have from romance to personal prestige. Schools and universities love the image of the career scholar, the men with SI units named after them who conducted experiments for the good of humanity...the reality is the very few extremely privileged people who got to play that game were old money wealthy, they owned land and had servants if not slaves to take care of all their material needs.

When a child asks why they have to go to school, they're told that school is where they learn the skills they need to survive as adults. though Elementary school, you can take this argument seriously. Learning how to add and subtract is necessary for the basic act of paying for things, reading is the most OP skill you can have, reading clocks and calendars is demonstrably important, etc. That argument starts falling apart when you're preventing people from going out and earning money to live so they can generate standardized test scores in pre-calculus algebra, or being told not asked what the symbology of the blue curtains in some novel is.

Because here's another thing about the principle of readiness: It is the teacher's responsibility to inform the students of the value of the lesson to them in their lives. "Someday algebra will save your life" is meaningless; we live in a world with quiz game shows, literally any trivia knowledge can be life changing. You have to be specific and realistic. Otherwise your students aren't going to spend the effort, they'll merely go through the motions, like pretending to be sad at a great aunt's husband's funeral.

Especially on Lemmy I've seen the argument that education shouldn't be mere job training, it should be about ultimate enlightenment. Except we need to achieve a world where everyone can afford rent before we can play that game, Tiffany. And we haven't. Survival skills come before abstract beautiful truths and if we're honest we're doing a piss poor job of both.

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[–] wolframhydroxide@sh.itjust.works 5 points 1 week ago* (last edited 1 week ago) (1 children)

You know shit's fucked when The King In Yellow, the very manifestation of the idea that knowledge can kill, is having to defend the value of education.

Every day we stray ~~further from god~~ toward lost Carcosa

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[–] woodenghost@hexbear.net 5 points 1 week ago* (last edited 1 week ago)

Neither. Math builds a lot on other math. And the curriculum is very standardized. That's why, when people just happen to miss something at any point, because maybe they have more important stuff going on in their live right now, they never catch up. We should drop the requirement that everyone has to learn the same math at the same time, hire more teachers and allow students to flow freely between courses to focus on the stuff they can learn with the math they already know. This will allow students to catch up and, paradoxically, produce a higher over all level of math knowledge, if less standardized and predictable for employers.

Now, to ensure students also want to learn math, both abstract math courses and mixed seminars should be offered. Students could choose to attend either or both. In the seminars, math, physics and engineering would be mixed in challenges where students with different skills and preferences have to work together to produce a cool result (like a robot, a game, an experiment, etc.). The abstract courses shouldn't be forgotten, because many students actually enjoy learning math. Instead of just teaching rules and how to follow them, they should involve a creative aspect, where students are encouraged to break rules by making their own definitions, formulate their own theorems and try to prove them (like actual mathematicians do).

[–] aspensmonster@lemmygrad.ml 4 points 1 week ago

The method is irrelevant when there are too few teachers in either case.

[–] gandalf_der_12te@discuss.tchncs.de 3 points 1 week ago* (last edited 1 week ago) (1 children)

Maths education is pointlessly overcomplicated. We need to simplify and streamline it. And also add in more practical real-world examples.

[–] Someonelol@lemmy.dbzer0.com 6 points 1 week ago

Especially when you're forced to use a complicated method to do basic calculations with. People should be allowed to learn different ways to get to the same answer.

[–] fodor@lemmy.zip 3 points 1 week ago (1 children)

National level fixes almost never work. Give schools and teachers and districts money and power for the win.

[–] ivanafterall@lemmy.world 6 points 1 week ago

Isn't this just resigning ourselves to shitty religious "charter schools" in like half the states? Feels like it'd be a massive assault on public education, in practice.

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