Anon describes experience
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Flashbacks to shitty math teachers. It was either this or "WHY DON'T YOU KNOW THIS YET!?" I quit participating and made a C for the rest of my academic career including college. I also got "I don't how you got this answer, but it's the right answer." . Hell I don't even know how I got that right answer but I refused to ask questions.
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All my teachers were fine with it honestly :3 at least after primary school.. if you corrected them they might've given you extra credit
But the general notion of saying something correct and people saying that that's wrong, and not knowing why still stands
You had an extraordinary school experience.
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Ah I recall my "science" teacher when I was 13 explaining to us that all materials expand when heated and shrink when cooled.
So I ask how ice floats, or how ice cubes swell above the tray.
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(I don't think that was your teachers point at all, but) couldn't the different formulas have produced different rounding errors due to floating point percision?
Doubtful, but if anything mine would be more accurate. Fewer calculation steps to lose precision on. I think most spreadsheet software fudges floating point precision anyway. A computer programmer may accept that 0.1+0.2 is not 0.3 but an accountant or mathematician would not be having it.
I think she was just shit at maths tbh. As a kid you sort of assume all the teachers know more than you about every subject, and that's not the case at all.
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(I don't think that was your teachers point at all, but) couldn't the different formulas have produced different rounding errors due to floating point percision?
Excel has a 15 point float, a quadrillionth, which should be enough for anything you were using excel for.
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You had an extraordinary school experience.
Maybe :3 I think my school wasn't that highly ranked nationally, but I don't know how others were in terms of the teachers so can't compare.. It definitely had a lot of other issues tho haha
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School really does prepare you for real life sometimes, it seems ...
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I actually kind of believe it, because kindergarten/elementary teachers are often from arts & humanities backgrounds, and it's not at all rare to find one who never passed a high school STEM class and therefore prone to get flustered easily when called upon to explain the reasonings behind even simple things.
Can you fail all your STEM classes and graduate high school?
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Doubtful, but if anything mine would be more accurate. Fewer calculation steps to lose precision on. I think most spreadsheet software fudges floating point precision anyway. A computer programmer may accept that 0.1+0.2 is not 0.3 but an accountant or mathematician would not be having it.
I think she was just shit at maths tbh. As a kid you sort of assume all the teachers know more than you about every subject, and that's not the case at all.
As a kid you sort of assume all the teachers know more than you about every subject, and that’s not the case at all.
same for chatgpt
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Excel has a 15 point float, a quadrillionth, which should be enough for anything you were using excel for.
yeah because excel does rounding stuff automatically for you
try entering
0.1 + 0.2 - 0.1 - 0.2 == 0.0in any programming language of your choice and see what happens. -
Fucking hell I feel validated rn, I had a similar experience at that age but it was in language/reading class. It's so frustrating to know that you are correct but you lack the terminology/ability to properly convey why you are right.
if you had had the terminology to say it, they would probably just have gotten angry anyways over being exposed in class.
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I had an elementary school teacher who insisted that gravity came from the earth's rotation, and that if the earth stopped spinning there would be nothing holding us down.
wrote last edited by [email protected]funnily enough i've heard people say the same thing irl
it kinda baffled me how people would even think that way
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Yep, am autistic, can confirm.
As with Union of Kobolds, I eventually got into the 'gifted' program... they even had me as a 2nd and 3rd grader basically being an unpaid tutor for 4th and 5th graders, sitting in the hallway, helping kids with reading difficulties (in all liklihood, undiagnosed dyslexia) read through kids books.
But, there's always classes and teachers not part of the gifted program, and they're often difficult and wrong and rude for no reason.
I still remember a chemistry teacher getting very angry with me for even bringing up quantum scale electron clouds as a model of atoms.
Not allowed to go beyond the Rutherford-Bohr model, even in discussion, always dismissive and rude, incapable of saying just 'yes that is a more accurate model, but it is far too complex to go over without understanding Rutherford-Bohr first'.
wrote last edited by [email protected]Union of Kobolds
wait is that a thing?
oh wait nvm that's another user's username
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Yeah, turned me off to science at that age too which sucks because I was pretty into it.
in case you still care: the periodic table is arranged primarily by the chemical properties of its elements (mainly electronegativity, i.e. how much energy it takes to add/remove an electron to/from the atom) and also by their mass.
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Depends on how your mathematical system is defined. In the mathematics system this teacher is using, negative numbers simply do not exist. The answer to 5-6 is the same as 5/0: NaN. Is this mathematical system incomplete? Yes. But, as has been thoroughly proven, there is no such thing as a complete mathematical system.
I was under the impression that there is in fact such a thing as a complete mathematical system (if you take "mathematical system" in the broader sense of "internally consistent system"), but such a system would be pretty limited and therefore rather useless.
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My experiences were to answer correctly, and then they go 'well, yes', and then don't ask me questions in the future.
same. i guess they want to make sure to ask people who don't already know everything, sothat everybody has a chance of learning.
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Oof, i can feel anon. Actually true probably, similar stuff happened to me. Also getting this writte in as bad behaviour as well. I started so many arguments with teachers because they were bullshitting. Maths is one thing, i was really into it as a child(still am) but i understand why a teacher has to teach things in order. Of course this could be solved with more resources, and more importantly, distrobuting resources better by having a bit more personalized education. But what i was on about is that its very common(in eastern europe at least) for teachers to spread actual complete fucking bullshit. The amount of times they took disciplinary action against me because i corrected their batshit insane claims is just sad. This mainly happened until 5th and 6th grade where i got to the conclusion that just discussing what we covered during the class, after the class, was a good way of clearing up the mess. Of course i knew way too much for a 10 year old(had an autistic sister who loved to infodump me, we still engage in it time to time ^_^) but the point is that if a 10 year old is constantly correcting his teachers theres a problem in the system. I hoped that more western systems would be better but actually i dont see (sweden in my case) being much better for children even with everyone hyping it up. Well sorry for the rant, idk what could actually solve these problems exactly as im not an expert but i really hope we adress it one day...
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I can believe this. Not fake, not gay. The math teaching of the past was so dumb. Even now, I have 2 kids who never got a bad math teacher and still love math; two who did (one teacher who actually thought women ought not get higher education) and those two do not
And a good math teacher is a treasure beyond words. Mr. Galing, if I could have had you teach my kids through high school I would have taken them anywhere.
how many kids do you have?
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Speaking of not teaching things kids have to unlearn later, I've often wondered why we don't just start teaching math with the expectation that you solve for "x".
i.e. Instead of
2 + 3 =Write
2 + 3 = xThis would prime the child to expect that math is about finding an unknown and you've already introduced the unknown that will be most prominent in their academic career. This will also reduce the steps necessary when teaching how to balance an equation as you no longer have the "well actually you were always solving for 'x' we just didn't write it, so you didn't know, also we're never going to use 'x' for multiplication again." stage.
But I'm not a teacher, parent, or child psychologist and this is just my blathering hypothesis based on watching my peers struggle with math for years.
I've taken accustomed to writing
2 + 3 = ___or2 + ___ = 5and then later seamlessly transitioning to "2 + 3 = z, write downz:" or "2 + t = y, wherey= 5. write downt:"because it just seems so natural to identify these letters with natural things, such as numbers of beer bottles or cookies. kids typically giggle over these things because they think i'm making it up to be funny for their entertainment.
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They get shot up because of easy access to guns, next question please!
they get shot up because of really poor mental health in large swaths of the population and non-existent gun control.
