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'Unsolvable' exam question leaves Chinese students flummoxed

bbc.com

11–20 of 64 posts

Re: 'Unsolvable' exam question leaves Chinese students flummoxed

#11
post #6

It's a Kobayashi Maru. They're supposed to demonstrate their hacking skills and change the exam score.

It’s worth pointing out that the intent of the Kobayashi Maru is to present the candidate with the terror, trauma, and experience of inevitable doom. Kirk cheated brilliantly, but that was not the point.

Re: 'Unsolvable' exam question leaves Chinese students flummoxed

#12

Growing up in the US, we used to have questions like this on math exams. The correct answer is something to the effect of "Not enough information to solve this problem". Of course we had practice questions where that was the case before the exam, so it wasn't a surprise or anything... but it was standard practice.

Questions like "A ball is fired from a cannon at a 45 degree angle, how far from it's initial position does it land?" are also fairly common in Canada. I don't recall every being asked something this silly though. There's no formula to calculate the age of a ship captain based on his cargo. There's no 'missing piece' here.

Re: 'Unsolvable' exam question leaves Chinese students flummoxed

#14
post #8

It sounds like the old programming interview questions: "Why are sewer covers round?", etc. They sound like they promote critical thinking, but really they just confuse the applicants. If you want to know how someone thinks, ask them to solve a problem step by step.

Such questions are usually shibboleths for cultural and social affinity, rather than objective attempts to test critical thinking and logic.

An upvote for using the word "shibboleth."

Re: 'Unsolvable' exam question leaves Chinese students flummoxed

#15

Growing up in the US, we used to have questions like this on math exams. The correct answer is something to the effect of "Not enough information to solve this problem". Of course we had practice questions where that was the case before the exam, so it wasn't a surprise or anything... but it was standard practice.

Questions like "A ball is fired from a cannon at a 45 degree angle, how far from it's initial position does it land?" are also fairly common in Canada. I don't recall every being asked something this silly though. There's no formula to calculate the age of a ship captain based on his cargo. There's no 'missing piece' here.

Without the "it's", I trust.

Re: 'Unsolvable' exam question leaves Chinese students flummoxed

#16

Growing up in the US, we used to have questions like this on math exams. The correct answer is something to the effect of "Not enough information to solve this problem". Of course we had practice questions where that was the case before the exam, so it wasn't a surprise or anything... but it was standard practice.

Questions like "A ball is fired from a cannon at a 45 degree angle, how far from it's initial position does it land?" are also fairly common in Canada. I don't recall every being asked something this silly though. There's no formula to calculate the age of a ship captain based on his cargo. There's no 'missing piece' here.

Read the article - there are several clues, and bounds can be calculated.

Re: 'Unsolvable' exam question leaves Chinese students flummoxed

#17
>"The total weight of 26 sheep and 10 goat is 7,700kg, based on the average weight of each animal," said one Weibo commenter.

Those are some MASSIVE sheep. I like that the internet know it all was just as wrong as everyone else. Also that the writer of the article didn't even bother to fact check it.

Re: 'Unsolvable' exam question leaves Chinese students flummoxed

#18

Growing up in the US, we used to have questions like this on math exams. The correct answer is something to the effect of "Not enough information to solve this problem". Of course we had practice questions where that was the case before the exam, so it wasn't a surprise or anything... but it was standard practice.

Questions like "A ball is fired from a cannon at a 45 degree angle, how far from it's initial position does it land?" are also fairly common in Canada. I don't recall every being asked something this silly though. There's no formula to calculate the age of a ship captain based on his cargo. There's no 'missing piece' here.

"There's no formula to calculate the age of a ship captain based on his cargo. There's no 'missing piece' here."

The lack of relevant relationship is the missing piece.

Given how much nonsense I've personally witnessed as a math tutor or TA as students shove unrelated numbers through unrelated equations in unmotivated manners in an attempt to come up with some answer, any answer, I'd say it's not any worse a question than giving them one that does correspond to an equation but has too few terms nailed down for a concrete answer.

The weird part of this story to me is that it is somehow newsworthy. Is it truly such an oddity in China that this made it to international news, or is there a heavy dollop of our local media basically turning off their critical thinking when it comes to China or Japan and boggling at anything, no matter how mundane?

Re: 'Unsolvable' exam question leaves Chinese students flummoxed

#19
post #9

It sounds like the old programming interview questions: "Why are sewer covers round?", etc. They sound like they promote critical thinking, but really they just confuse the applicants. If you want to know how someone thinks, ask them to solve a problem step by step.

Asking them to solve a problem step by step is great to learn whether that person is good at explaining the solution step by step. It is not about internal thought process you use to come up with solution.

Well, they have to at least be able to solve the problem, and being able to explain a solution is an important skill in its own right. Unless you are researching thought processes, or you are a Hardy working with a Ramanujan, the distinction you are making does not matter a whole lot.

Re: 'Unsolvable' exam question leaves Chinese students flummoxed

#20

It sounds like the old programming interview questions: "Why are sewer covers round?", etc. They sound like they promote critical thinking, but really they just confuse the applicants. If you want to know how someone thinks, ask them to solve a problem step by step.

i only know from learning about it, but round manhole covers prevent them from falling through the hole by consisting of a curve of constant width. Another example is the Reuleaux Triangle which is a viable shape for manhole covers. https://en.m.wikipedia.org/wiki/Reuleaux_triangle
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