Skip to content
  • Categories
  • Recent
  • Tags
  • Popular
  • World
  • Users
  • Groups
Skins
  • Light
  • Cerulean
  • Cosmo
  • Flatly
  • Journal
  • Litera
  • Lumen
  • Lux
  • Materia
  • Minty
  • Morph
  • Pulse
  • Sandstone
  • Simplex
  • Sketchy
  • Spacelab
  • United
  • Yeti
  • Zephyr
  • Dark
  • Cyborg
  • Darkly
  • Quartz
  • Slate
  • Solar
  • Superhero
  • Vapor

  • Default (No Skin)
  • No Skin
Collapse
Brand Logo

agnos.is Forums

  1. Home
  2. Lemmy Shitpost
  3. Kid gave a reasonable answer without all the math bullshit

Kid gave a reasonable answer without all the math bullshit

Scheduled Pinned Locked Moved Lemmy Shitpost
lemmyshitpost
165 Posts 112 Posters 0 Views
  • Oldest to Newest
  • Newest to Oldest
  • Most Votes
Reply
  • Reply as topic
Log in to reply
This topic has been deleted. Only users with topic management privileges can see it.
  • M [email protected]
    This post did not contain any content.
    L This user is from outside of this forum
    L This user is from outside of this forum
    [email protected]
    wrote on last edited by
    #9

    Why would you ask "How is this possible" when you expect the answer to be "it's not"?

    I K G 3 Replies Last reply
    76
    • M [email protected]
      This post did not contain any content.
      E This user is from outside of this forum
      E This user is from outside of this forum
      [email protected]
      wrote on last edited by [email protected]
      #10

      So...

      (4/6)m > (5/6)l
      m > (5/4)l
      

      Which means Marty's pizza is more than one and a quarter the size of Luis' pizza. We can comfortably just compare the area, since we can assume a flat disk with equal height for a pizza.

      Assuming Luis' pizza is a Domino's Classic size of 25cm that's an area of:

      (25cm / 2)² * π = (625cm² / 4) * π = 490.874cm²
      

      So Marty's pizza should be more than 490.874cm² * 1.25 = 613.5925cm² for 4/6 of his to be greater than of 5/6 of Luis', so:

      sqrt(613.5925cm² / π) * 2 = 13.975426964cm * 2 = 27.950853929cm
      

      Since Marty's pizza is greater, let's go with 28cm diameter... which happens to match exactly a Domino's Medium size.

      That's a very realistic scenario and the teacher is an absolute idiot for not understanding.

      1 Reply Last reply
      9
      • M [email protected]
        This post did not contain any content.
        K This user is from outside of this forum
        K This user is from outside of this forum
        [email protected]
        wrote on last edited by [email protected]
        #11

        When I was in elementary, my teacher said that "Lutetia" was how the Romans called the city of Liege. As an avid reader of Asterix comics, I knew this isn't true and corrected her and said it was the Roman name of Paris. She insisted that it is Liege. Anyway, the next day, she came back to class and said that she looked it up and that I was indeed correct and Lutetia referred to Paris and gave me a chocolate bar and told me to keep reading comics. Good teacher.

        D R J S T 5 Replies Last reply
        166
        • L [email protected]

          Why would you ask "How is this possible" when you expect the answer to be "it's not"?

          I This user is from outside of this forum
          I This user is from outside of this forum
          [email protected]
          wrote on last edited by
          #12

          Because these "teacher is dumber than a child" pictures are always fake. I've never seen a teacher write corrections on a student's paper. Are they doing that for every wrong question on every paper? That would take forever!

          S 5ibelius9insterberg@feddit.org5 Z signtist@lemm.eeS I 6 Replies Last reply
          18
          • I [email protected]

            Because these "teacher is dumber than a child" pictures are always fake. I've never seen a teacher write corrections on a student's paper. Are they doing that for every wrong question on every paper? That would take forever!

            S This user is from outside of this forum
            S This user is from outside of this forum
            [email protected]
            wrote on last edited by
            #13

            Some people become teachers because they love to educate children.

            Some people become teachers because they have no control in their life and want to be the boss if something.

            T 1 Reply Last reply
            2
            • I [email protected]

              Because these "teacher is dumber than a child" pictures are always fake. I've never seen a teacher write corrections on a student's paper. Are they doing that for every wrong question on every paper? That would take forever!

              5ibelius9insterberg@feddit.org5 This user is from outside of this forum
              5ibelius9insterberg@feddit.org5 This user is from outside of this forum
              [email protected]
              wrote on last edited by
              #14

              This happens all the time, at least in Germany. My teachers did it, and I do it too.

              The picture is probably still ragebait.

              1 Reply Last reply
              21
              • F [email protected]

                It is entirely possible and his answer was correct. Question was phrased incorrectly, if the teacher wanted an answer "it is not possible" he should have said both pizzas were the same size.

                V This user is from outside of this forum
                V This user is from outside of this forum
                [email protected]
                wrote on last edited by
                #15

                A third option is that there is a third pizza eater who also ate 4/6th of their pizza and gave 2/6th up Marty in exchange for the 2/6th Marty didn't eat.

                Or yeah maybe it was a larger pizza.

                1 Reply Last reply
                2
                • I [email protected]

                  Because these "teacher is dumber than a child" pictures are always fake. I've never seen a teacher write corrections on a student's paper. Are they doing that for every wrong question on every paper? That would take forever!

                  Z This user is from outside of this forum
                  Z This user is from outside of this forum
                  [email protected]
                  wrote on last edited by [email protected]
                  #16

                  How are you supposed to learn if they don't tell you how to do it better? Not writing corrections seems like bad teaching to me.

                  One of my teachers demanded we fold our paper in half and leave one half empty for his corrections, another one demanded a third of the page, and the rest squeezed their comments on the edge of the page

                  1000090825

                  1 Reply Last reply
                  4
                  • I [email protected]

                    Because these "teacher is dumber than a child" pictures are always fake. I've never seen a teacher write corrections on a student's paper. Are they doing that for every wrong question on every paper? That would take forever!

                    signtist@lemm.eeS This user is from outside of this forum
                    signtist@lemm.eeS This user is from outside of this forum
                    [email protected]
                    wrote on last edited by
                    #17

                    You can't teach if you don't identify where the students are getting things wrong and correct them. It's one of the major reasons why teachers deserve so much more pay. My wife used to be a teacher, and she worked 2-3 hours past the end of school correcting students' work pretty much every weekday, and spent several hours every weekend planning out her lessons for the following week. She got paid significantly less than me working in a basic entry-level 9-5 office position.

                    J 1 Reply Last reply
                    6
                    • signtist@lemm.eeS [email protected]

                      You can't teach if you don't identify where the students are getting things wrong and correct them. It's one of the major reasons why teachers deserve so much more pay. My wife used to be a teacher, and she worked 2-3 hours past the end of school correcting students' work pretty much every weekday, and spent several hours every weekend planning out her lessons for the following week. She got paid significantly less than me working in a basic entry-level 9-5 office position.

                      J This user is from outside of this forum
                      J This user is from outside of this forum
                      [email protected]
                      wrote on last edited by [email protected]
                      #18

                      Teachers absolutely don't get paid as much as they should.

                      Also, I was kinda curious about what states have the strongest teacher unions and surprise surprise, it maps very closely to education quality, with Montana and Massachusetts probably being the biggest outliers.

                      riddersport@feddit.orgR 1 Reply Last reply
                      2
                      • K [email protected]

                        When I was in elementary, my teacher said that "Lutetia" was how the Romans called the city of Liege. As an avid reader of Asterix comics, I knew this isn't true and corrected her and said it was the Roman name of Paris. She insisted that it is Liege. Anyway, the next day, she came back to class and said that she looked it up and that I was indeed correct and Lutetia referred to Paris and gave me a chocolate bar and told me to keep reading comics. Good teacher.

                        D This user is from outside of this forum
                        D This user is from outside of this forum
                        [email protected]
                        wrote on last edited by [email protected]
                        #19

                        I had a HS teacher say the the 2nd to 5th richest people were the Walton(of Walmart) family heirs. I knew this wasn't right because at the time, Steve Balmer(of Microsoft) was the 5th or something. I printed out the Forbes list and brought it in. The teacher coped by saying that if you combined the Walton wealth, it would rank that high. He was a POS teacher for more significant reasons than that though.

                        1 Reply Last reply
                        8
                        • K [email protected]

                          When I was in elementary, my teacher said that "Lutetia" was how the Romans called the city of Liege. As an avid reader of Asterix comics, I knew this isn't true and corrected her and said it was the Roman name of Paris. She insisted that it is Liege. Anyway, the next day, she came back to class and said that she looked it up and that I was indeed correct and Lutetia referred to Paris and gave me a chocolate bar and told me to keep reading comics. Good teacher.

                          R This user is from outside of this forum
                          R This user is from outside of this forum
                          [email protected]
                          wrote on last edited by
                          #20

                          In elementary school our teacher asked us to spell the current year with roman numerals, so I worked out "MCMXCVIII", which I was quite proud of. But the teacher came back at me quite snarkyly and said it's much easier to just substract 2 from 2000, "IIMM" duh!

                          It was only many years later that I accidently learned that he was indeed full of shit and I was right all along.

                          K K 2 Replies Last reply
                          9
                          • L [email protected]

                            Why would you ask "How is this possible" when you expect the answer to be "it's not"?

                            K This user is from outside of this forum
                            K This user is from outside of this forum
                            [email protected]
                            wrote on last edited by
                            #21

                            Teacher got the worksheet from someone else and didn't know the answer.

                            sarge@startrek.websiteS 1 Reply Last reply
                            1
                            • I [email protected]

                              Because these "teacher is dumber than a child" pictures are always fake. I've never seen a teacher write corrections on a student's paper. Are they doing that for every wrong question on every paper? That would take forever!

                              I This user is from outside of this forum
                              I This user is from outside of this forum
                              [email protected]
                              wrote on last edited by
                              #22

                              I was told in 6th or 7th grade science class that you can't hear underwater

                              1 Reply Last reply
                              1
                              • M [email protected]
                                This post did not contain any content.
                                H This user is from outside of this forum
                                H This user is from outside of this forum
                                [email protected]
                                wrote on last edited by
                                #23

                                I know this is bait but who said they had the same-sized pizzas?

                                One could be XL the other one a personal pizza.

                                T 1 Reply Last reply
                                0
                                • M [email protected]
                                  This post did not contain any content.
                                  J This user is from outside of this forum
                                  J This user is from outside of this forum
                                  [email protected]
                                  wrote on last edited by
                                  #24

                                  If you state that Marty ate more as part of the question, you cannot answer in any other way, because it denies mathematical logic here. You introduced a lie as part of the problem, and if I need to decide myself which part of the statement is a lie, I can pick whatever I want, let's say, Marty didn't ate 4/6, but 6/6. This teacher should be taken to the gulag.

                                  B K T 3 Replies Last reply
                                  18
                                  • J [email protected]

                                    Teachers absolutely don't get paid as much as they should.

                                    Also, I was kinda curious about what states have the strongest teacher unions and surprise surprise, it maps very closely to education quality, with Montana and Massachusetts probably being the biggest outliers.

                                    riddersport@feddit.orgR This user is from outside of this forum
                                    riddersport@feddit.orgR This user is from outside of this forum
                                    [email protected]
                                    wrote on last edited by
                                    #25

                                    In the USA maybe, teachers in Germany are paid quite well

                                    1 Reply Last reply
                                    0
                                    • L [email protected]

                                      Why would you ask "How is this possible" when you expect the answer to be "it's not"?

                                      G This user is from outside of this forum
                                      G This user is from outside of this forum
                                      [email protected]
                                      wrote on last edited by
                                      #26

                                      Because they spent an entire math class period earlier that week explaining to the students what "reasonableness" was going to mean on their next math test, and in the context of (I'm guessing 3rd or 4th grade) arithmetic the important thing they're trying to teach is that 5/6 is a larger fraction than 4/6. I agree that the question could be worded better (change the last two sentences to "Marty says he ate more pizza. Is this possible?") but I strongly suspect that the missing context from their class - or maybe even at the beginning of the test - explains enough to get the answer the teacher was looking for here.

                                      Yes, one kid starting with a larger pizza changes the situation, but fundamentally that's an algebra question, not a "learning fractions" question.

                                      S 1 Reply Last reply
                                      1
                                      • G [email protected]

                                        Because they spent an entire math class period earlier that week explaining to the students what "reasonableness" was going to mean on their next math test, and in the context of (I'm guessing 3rd or 4th grade) arithmetic the important thing they're trying to teach is that 5/6 is a larger fraction than 4/6. I agree that the question could be worded better (change the last two sentences to "Marty says he ate more pizza. Is this possible?") but I strongly suspect that the missing context from their class - or maybe even at the beginning of the test - explains enough to get the answer the teacher was looking for here.

                                        Yes, one kid starting with a larger pizza changes the situation, but fundamentally that's an algebra question, not a "learning fractions" question.

                                        S This user is from outside of this forum
                                        S This user is from outside of this forum
                                        [email protected]
                                        wrote on last edited by
                                        #27

                                        Well yes it is a learning fractions question. Pizza is not a number. Pizza is not a specification of size. It is absolutely crucial for understanding fractions, that a fraction of anything but two numbers will be factored by the size or whatever metric of that thing.

                                        In the same wake you learn that "5" is not an answer to a typical physics calculation, as the unit is missing.

                                        1 Reply Last reply
                                        1
                                        • sassyramen@lemmy.worldS [email protected]

                                          Take that to the principal, stupid teachers shouldn't teach

                                          S This user is from outside of this forum
                                          S This user is from outside of this forum
                                          [email protected]
                                          wrote on last edited by
                                          #28

                                          ... or have a bit of empathy and talk to the teacher like a human.

                                          1 Reply Last reply
                                          1
                                          Reply
                                          • Reply as topic
                                          Log in to reply
                                          • Oldest to Newest
                                          • Newest to Oldest
                                          • Most Votes


                                          • Login

                                          • Login or register to search.
                                          • First post
                                            Last post
                                          0
                                          • Categories
                                          • Recent
                                          • Tags
                                          • Popular
                                          • World
                                          • Users
                                          • Groups