On May 14 2014 07:03 jcarlsoniv wrote: Ok so, this past weekend my little sister asked me for help on a math question. Upon learning that I got the answer wrong, I got irrationally angry.
No, I shouldn't have gotten it wrong, but at the same time, this question is grade Aids cancer.
teut long didn't read - math major gets juked by 8th grade math question
What was the answer?
For the length of A I got 3*sqrt(5)
The answer is 12...
not only is the ratio deceptive, but since the answer is 12, that means that A is the hypotenuse, which is FAR AND AWAY NOT HOW THAT FUCKING TRIANGLE LOOKS
Ya I was going to say the answer has to be 12 because it's the only answer that both adheres to pythag's and the ratio given, but it means you have to completely disregard the picture as is.
Sure, like, I realized I should have looked at it and been like "oh yeah that's a 6/9/12 triangle" and probably would have if it was drawn to be the fucking hypotenuse.
I also explained to her the "pics may not be to scale" rule, but this question went above and beyond
Oh ya it's retarded for sure. Louis CK just finished going on a huge twitter rant recently about the shit he sees his daughter bring home for homework/tests, and how obtuse and purposefully deceiving most of the questions are. It has gotten seriously out of hand. It's one thing to make sure the kids are reading carefully and thinking about the question they just read without rushing to answer, it's another thing to basically trap door them constantly, ESPECIALLY at the earlier age levels(probably into high school as well).
I initially looked at it and was like 'well let me just pythagorean the triangle with the 2 numbers given, ezpz, sqrt of 45... hey wait that's not 2/3rds of 8 at all....
Man that's brutal. I just assumed that 9 was the hypotenuse and went from there. That's deceptive though.
It's okay Soniv. I'm also a Math Major and I got that question wrong but now THE ENTIRE THREAD knows that I whiffed it good. And this is me having the knowledge that another Math Major got the same question wrong, so I should have been suspicious of my answer.
So really I'm here to make you look good.
Although I did learn something about assumptions today so that's good I suppose.
On May 14 2014 07:03 jcarlsoniv wrote: Ok so, this past weekend my little sister asked me for help on a math question. Upon learning that I got the answer wrong, I got irrationally angry.
No, I shouldn't have gotten it wrong, but at the same time, this question is grade Aids cancer.
teut long didn't read - math major gets juked by 8th grade math question
What was the answer?
For the length of A I got 3*sqrt(5)
The answer is 12...
not only is the ratio deceptive, but since the answer is 12, that means that A is the hypotenuse, which is FAR AND AWAY NOT HOW THAT FUCKING TRIANGLE LOOKS
Ya I was going to say the answer has to be 12 because it's the only answer that both adheres to pythag's and the ratio given, but it means you have to completely disregard the picture as is.
Sure, like, I realized I should have looked at it and been like "oh yeah that's a 6/9/12 triangle" and probably would have if it was drawn to be the fucking hypotenuse.
I also explained to her the "pics may not be to scale" rule, but this question went above and beyond
Oh ya it's retarded for sure. Louis CK just finished going on a huge twitter rant recently about the shit he sees his daughter bring home for homework/tests, and how obtuse and purposefully deceiving most of the questions are. It has gotten seriously out of hand. It's one thing to make sure the kids are reading carefully and thinking about the question they just read without rushing to answer, it's another thing to basically trap door them constantly, ESPECIALLY at the earlier age levels(probably into high school as well).
I initially looked at it and was like 'well let me just pythagorean the triangle with the 2 numbers given, ezpz, sqrt of 45... hey wait that's not 2/3rds of 8 at all....
Lol yeah, I got 5 1/3, which seemed like a pretty reasonable number looking at the diagram (despite things not being perfectly scale)
On May 14 2014 07:21 Frudgey wrote: Man that's brutal. I just assumed that 9 was the hypotenuse and went from there. That'd deceptive though.
It's okay Soniv. I'm also a Math Major and I got that question wrong but now THE ENTIRE THREAD knows that I whiffed it good. And this is me having the knowledge that another Math Major got the same question wrong, so I should have been suspicious of my answer.
So really I'm here to make you look good.
Although I did learn something about assumptions today so that's good I suppose.
On May 14 2014 07:03 jcarlsoniv wrote: Ok so, this past weekend my little sister asked me for help on a math question. Upon learning that I got the answer wrong, I got irrationally angry.
No, I shouldn't have gotten it wrong, but at the same time, this question is grade Aids cancer.
teut long didn't read - math major gets juked by 8th grade math question
What was the answer?
For the length of A I got 3*sqrt(5)
The answer is 12...
not only is the ratio deceptive, but since the answer is 12, that means that A is the hypotenuse, which is FAR AND AWAY NOT HOW THAT FUCKING TRIANGLE LOOKS
The worst thing about it is that the teacher is probably a well meaning, good classroom teacher, but the book she's told to use for her homework and tests is complete fucking garbage that the school district is told to use to prepare for a specific and equally fucking garbage standardized test.
On May 14 2014 07:23 red_ wrote: The worst thing about it is that the teacher is probably a well meaning, good classroom teacher, but the book she's told to use for her homework and tests is complete fucking garbage that the school district is told to use to prepare for a specific and equally fucking garbage standardized test.
It's a private school. I have no idea who her teacher is, but I've been seriously considering driving down there and giving the teacher a piece of my mind
edit: but yeah, since it's a private school, the teachers have full reign over choosing what books they use
I random skywrath mage, some guy on the other team proceed to pick Huskar. In terms of League, uh... it's like playing a squishy burst mage against pre-rework Rengar, 'cept he automatically receives Kayle's ult when he gets close to death. Smurfs are cool too. Premade of 4 russians, one of them only a noob like me. I guess I'm supposed to turn AP off or something.
you know that question had 0 things to do with trigonometry you just multiply the 8 by 3/2. I went all pythagorean theorem on it and then realized it was unnecessary.
i don't know why i thought so hard about this question but the misleading-ness of it really bothers me as well
On May 14 2014 07:27 Nos- wrote: you know that question had 0 things to do with trigonometry you just multiply the 8 by 3/2. I went all pythagorean theorem on it and then realized it was unnecessary.
Correct, lol
I mean, which I didn't have a real issue with. The important part was the ratios, not the similar triangles.
Which, now that I think about it, bugs me more
edit to address your edit - I actually thought about the question a lot while I was writing my response to her, because I just couldn't believe how wrong it was, I wanted to make sure I actually didn't make a mistake.
It's ok, it'll prepare her for the GRE. The math section of the general GRE is basically all BS misleading questions designed to trick you with figures just as misleading as that and you have to filter out all the BS before you can get to the actual problem, also the solution usually isn't quite as easy to reach as 3/2*8.
...of course that only helps for grad school but w/e masters is the new bachelor's, for certain professions anyways.
The triangles aren't drawn correctly to scale (not even to each other) and if you go by pythagorean's neither is it correct even in respect to itself. Why. POUR QUOI!!!
On May 14 2014 07:36 Nos- wrote: The triangles aren't drawn correctly to scale (not even to each other) and if you go by pythagorean's neither is it correct even in respect to itself. Why. POUR QUOI!!!
Because you can't just let things make sense in math! Math is supposed to be difficult!
This kind of shit is why there are no women in STEM.
On May 14 2014 07:36 Nos- wrote: The triangles aren't drawn correctly to scale (not even to each other) and if you go by pythagorean's neither is it correct even in respect to itself. Why. POUR QUOI!!!
Because you can't just let things make sense in math! Math is supposed to be difficult!
This kind of shit is why there are no women in STEM.
Actually that's a pretty good question because it forces you to understand similarity. A must be ~ to 8 because the ratio is given as 3/2 so 8 can't be ~ to 6 or be ~ to 9.
Misleading math is great because relying on intuition for math teaches terrible habits because our intuition on math is actually awful. If you could do math with intuition you wouldn't need math.
The argument unstated here is most math people work with should be intuitive and not false-academic-rigorous. But that's not really math, that's arithmetic.
Education system is a joke. I've experienced every kind of school except military academy and man it's only gotten worse in all accounts from what my younger brother brings home/knows.
I should start a blog of my esteemed friend, the glorious State School College Professor, who elects to teach basic math classes because he tells me "now that I've given up on humanity, these are pretty lulz."
But he just emailed me a gem:
Question: f(x)=x^2 what is f(x+3)? Student: f(x+3)=f*x+3f=x^3+3x^2
On May 14 2014 07:53 xes wrote: I should start a blog of my esteemed friend, the glorious State School College Professor, who elects to teach basic math classes because he tells me "now that I've given up on humanity, these are pretty lulz."
But he just emailed me a gem:
Question: f(x)=x^2 what is f(x+3)? Student: f(x+3)=f*x+3f=x^3+3x^2
that fucking logic LOL i dont even actually i get it he thinks f = x^2 thats not that dumb just fundemental misunderstanding.
On May 14 2014 07:53 xes wrote: I should start a blog of my esteemed friend, the glorious State School College Professor, who elects to teach basic math classes because he tells me "now that I've given up on humanity, these are pretty lulz."
But he just emailed me a gem:
Question: f(x)=x^2 what is f(x+3)? Student: f(x+3)=f*x+3f=x^3+3x^2
I...I don't even understand how you arrive at that
On May 14 2014 07:53 Slayer91 wrote:
he thinks f = x^2 thats not that dumb just fundemental misunderstanding.
Richard Feynman is one of the few people who is brilliant in his field, has common sense and intelligence outside of the field, and can convey his thoughts to others entertainingly, very few hit all three. Read all books remotely related to him growing up and he's the main reason i have high regard for science today.
EPT![[image loading]](http://i.imgur.com/aFV2evN.jpg)
