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One of those days (lemmy.dbzer0.com)
submitted 1 year ago by to c/memes@sopuli.xyz
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[–] 44 points 1 year ago* (last edited 1 year ago) (11 children)

This is from a Pearson online graded thing, if you don't happen to recognize it. It probably would have taken 161/4 (edited) as a correct answer as well (IMO 40 1/4 is ambiguous, improper).

The software is more than capable of determining that 40.25=40+1/4 so its not really excusable (unless its specifically trying to teach fractions for middle schoolers or something)

That said, A lot of my calc 3 homework (multi variable calculus) in college was run by Pearson, and while it wasn't perfect, the fact that it was autograded with multiple attempts allowed made learning the material easy. Immediate feedback is incredible.

Fuck Pearson though, honestly. This shit is expensive and it's still got noticeable flaws. Last Pearson course I took kept trying to get me to use their shitty AI and pay extra for shit. I'm a student, not a potential customer to shake down.

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  • [–] 13 points 1 year ago (3 children)

    41/4 is 10.25

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  • [–] 5 points 1 year ago (2 children)

    Correct, but not what is shown in the OP.

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  • [–] 1 point 1 year ago (1 child)

    The OP has 40*1/4 which is 10.

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  • [–] 5 points 1 year ago

    OP had an ambiguous notation. One that tends to be taught in schools as the way to present a 'proper fraction' (or perhaps compound fraction, i forget, it's not important) by factoring out the integer component.

    Later on in schooling, one is discouraged from using the notation because of the entirely reasonable way of interpreting it that you've used when thinking algebraicly.

    It's like that Facebook shit that uses the division operator. It's ambiguous, so there is no way to be authoritative in the interpretation.

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  • [–] 9 points 1 year ago (2 children)

    Speaking from a decade ago but Khan Academy's system(at the time called mastery, not sure what it is now) was leaps and bounds better for learning calculus.

    Also I'm pretty sure this meme is from back then too.

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  • [–] 4 points 1 year ago (1 child)

    I love Khan academy so much. I don't know how good it is nowadays, but it's one of the things that shaped my perspective on the internet as I was growing up alongside the changing web; Yes, there is all sorts of awfulness online, and so many complex harms, but there are also so many awesome learning resources and enthusiastic people who want to share their knowledge. Khan academy did a lot for democratising knowledge, and is a concrete answer in the discussion of "what might 'learning outside of the academy' look like?"

    The key difference between Pearson's shitty maths thing and Khan academy's equivalent is that Khan academy was started by a dude who was genuinely interested in bringing learning materials to people, and exploring online teaching as a new medium. Pearson is a soulless entity that exists to wring money out of everything it can.

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  • [–] 2 points 1 year ago

    Well the system is just an improvement over examination based evaluation too. Doing 5 problems from a discrete concept correctly in a row is a far better proof of knowledge than one problem worth 20% of your grade.

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