this post was submitted on 03 Jun 2025
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[–] leadore@lemmy.world 35 points 6 days ago* (last edited 6 days ago) (1 children)

This is bizarre. The info provided in the question was that Marty ate more than Luis, the question was how would that be possible given that Marty ate 4/6 of his while Luis ate 5/6 of his. The answer the kid wrote (Marty's pizza was bigger than Luis') is the only possible correct answer.

The grader is asserting that the information given in the question was wrong and that "actually it was Luis who ate more pizza"--even though it stated as a premise that "Marty ate more". How are you supposed to give a correct answer on a test if you are expected to accept one premise (proportion of pizzas eaten) while disregarding another premise (Marty ate more than Luis)? How do you decide which part to disregard? Would they have accepted the answer, "Luis actually only ate 3/6 of his pizza, not 5/6)"? Wouldn't that be just as valid an answer as "Marty actually didn't eat more than Luis"?

[–] Benchamoneh@lemmy.dbzer0.com 11 points 6 days ago (2 children)

Agree, this question is such hot shit that I can't imagine it popping up in any real world maths test

[–] TheKingBee@lemmy.world 6 points 6 days ago* (last edited 6 days ago)

The question is good, how given one smaller and one larger fraction could the person eating a smaller percent still have eaten more total pizza? That's a fun brain puzzle.

The problem is the teacher.

[–] leadore@lemmy.world 5 points 6 days ago

And by gaslighting the kids, they're teaching them not to trust their own ability to reason, crushing their critical thinking skills. It sets them up to submit to authoritarianism and go along with obvious lies instead of trusting their own senses and questioning authority.

[–] Mniot@programming.dev 31 points 6 days ago (1 children)

The title of this post is disappointing. The given answer is sound and it seems safe to assume it was arrived at by thinking mathematically.

[–] beejboytyson@lemmy.world 10 points 6 days ago

Right? He's rationally explaining how that was possible given the question of "how" it is possible. In my opinion that question was written poorly.

[–] sandflavoured@lemm.ee 28 points 6 days ago (4 children)

I suspect many commenters are missing the point, the student's response can only be the correct and expected answer to this question. Teacher has it wrong.

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[–] A_Chilean_Cyborg@feddit.cl 39 points 6 days ago (2 children)

i can't fathom this being real, most probably this was made for karma farming or something.

[–] edgesmash@lemmy.world 25 points 6 days ago (1 children)

Teachers like this exist. One of my kids had an elementary school teacher like this. Two examples:

  1. The math assignment was about currency denominations; what coins and bills you need to make up $7.42, for example. My kid answered using $2 bills (uncommon in the US but still printed), as we have them at home. Teacher marked the answer wrong because teacher didn't mention $2 bills in class.
  2. The writing assignment was to rewrite the Snow White story from the perspective of another character. My kid, having read a bunch of those "twisted tales" and recently fallen in love with "Wicked", wrote from the evil queen's perspective and made her a sympathetic character. Teacher marked her down for "changing the story" without acknowledging my kid's creativity. Teacher did not back down when we confronted her on this during our parent teacher conference.

(FWIW, in both cases we reassured our kid that they did great in both cases, and that we were proud of them.)

[–] Plesiohedron@lemmy.cafe 12 points 6 days ago (9 children)

Teacher : draw a triangle with sides of length 1 inch, 2 inches and 3 inches

Kid : but you can't do that. You get a 3 inch line. Other students proceed to draw skinny triangles.

Teacher : you're wrong Kid. Everybody else can do it, what's your problem?

True story.

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[–] camelbeard@lemmy.world 5 points 6 days ago

Also what teacher uses a green felt tip pen?

[–] fiddledeedee@sopuli.xyz 17 points 6 days ago (1 children)

that kid passes my class with honors

the teacher is a moron

[–] MystikIncarnate@lemmy.ca 10 points 6 days ago

Same. Question sucks. Teacher is a tool. Kid needs bonus points for a creative solution.

This always pissed me off about all formal school. They don't want a good answer, they don't even want the correct answer. They want you to give them the answer they previously told you to give them, regardless of all other factors.

Real life doesn't work like that. In reality, the "correct" answer is anything that completes the objective. In this scenario, the answer provided was reasonable, logical and most importantly, it was not incorrect.

[–] ICastFist@programming.dev 22 points 6 days ago (3 children)

Ah, a teacher that does not comprehend the barometer

Two other right answers:

  • Luis' pizza is at least smaller than Marty's (which is basically the same answer as the kid's)
  • Marty ate someone else's pizza besides his own

And, for funsies:

  • Luis' pizza is 50% crust, so it doesn't fully count as pizza
  • Luis doesn't like pizza and actually fed the dog while nobody was looking
  • Marty is many years older than Luis, therefore he has eaten many years' worth of pizza ahead of Luis
[–] Dicska@lemmy.world 4 points 6 days ago

correct fraction = 4/5, as in, Luis' pizza is smaller than the 4/5 (80%) of Marty's pizza.

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[–] kamen@lemmy.world 21 points 6 days ago (2 children)

Commendable for the kid to be thinking outside of the box, and a bit shitty of the teacher for not giving them maybe half a point (because it's a correct answer, but not the correct/expected answer). The test maker is also to blame - they should've taken care to eliminate all ambiguity - it's a math test after all.

[–] Knock_Knock_Lemmy_In@lemmy.world 33 points 6 days ago (1 children)

The teachers response is incorrect. It is stated as fact that marty ate more pizza.

[–] kamen@lemmy.world 5 points 6 days ago* (last edited 6 days ago)

Oh, yes, you're right! I read the question again.

P.S. And if really is a fake/made up test like some other folks claim in the comments, just look at how much of a discussion it throws us into.

[–] djehuti@programming.dev 25 points 6 days ago (6 children)

The kid's answer is the only correct answer. It's not half right, or 5/6 or 4/6 right. It's the only correct answer that fits the question. The teacher is a moron who has no business in a math classroom except as a remedial student.

[–] ICastFist@programming.dev 6 points 6 days ago (1 children)

Marty could've eaten someone else's pizza besides his own, which would also make it a correct answer. The question didn't say he ate 4/6 of his pizza and nothing else

[–] djehuti@programming.dev 1 points 5 days ago
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[–] Iambus@lemmy.world 13 points 6 days ago

This is genuinely baffling. What was that teacher on.

[–] plasticbuddha@lemmy.world 15 points 6 days ago

The statement and question make perfect sense. The kid has the only "reasonable" answer.

[–] assassinatedbyCIA@lemmy.world 14 points 6 days ago* (last edited 6 days ago) (1 children)
[–] F_OFF_Reddit@lemmy.world 13 points 6 days ago (1 children)

Actually a kilogramme of feathers is heavier, because you have the weight on your conscience of what you had to do to those poor birds to get all those feathers.

[–] FeelzGoodMan420@eviltoast.org 6 points 6 days ago (1 children)

So this was a trick question? Because the student's answer is correct. That's the only way it's possible. Was the answer supposed to be that it's not possible? I'm a grown adult and I find this question unclear so I'm surprised this was asked to a young child in this way.

[–] Marleyinoc@lemmy.world 5 points 6 days ago

Well the teacher's answer is flat out wrong which doesn't surprise me at all.

[–] lechekaflan@lemmy.world 4 points 6 days ago

Curriculum and unappetizing methods of teaching are the problems.

This kid has the right to question, to speak out what's really logical, and is likely to be more street-wise.

[–] varnia@feddit.org 5 points 6 days ago (1 children)

The statement and the question do not make any kind of sense. Would make more sense to ask who ate more pizza when one ate 2/3 and another one ate 3/4 of an equally sized pizza.

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