Forum: Internet Links
Topic: Are You Smarter than a 3rd Grader?
started by: thibodeaux

Posted by thibodeaux on May 04 2013,15:39
< http://math.stackexchange.com/questio....r-is-it >

I'm pretty sure I'd make the teacher cry.



Posted by Malcolm on May 04 2013,16:26
QUOTE
I don't understand what's wrong with this question. I think the student answered the question wrong, yet my friend insists the student got the question right.

I feel like I'm missing something critical here. What am I thinking wrong?

Sarcasm overload.  Must get a beer.

Posted by TheCatt on May 04 2013,18:08
Oh man... when I was in high school physics the teacher asked a question like:

A car linearlly accelerates from 10m/s to 20m/s over 10s.  How far did it go?  (Or a rocket, or whatever).
Her answer: 50m
My answer: 150m

I "got it wrong"

Posted by Malcolm on May 04 2013,19:40
How did you get it wrong?  There are formula that are literally single equations for that sort of shit.  Multiple choice?
Posted by TheCatt on May 05 2013,03:51
No, free form test.  She somehow thought that the base 10 m/s could be discarded.  And treated the problem as accelerating me 0m/s to 10m/s.

Me: Well, a vehicle going 10m/s over 10s would go 100m.  Yet this one was going faster, but didnt go as far?
Her: That's an entirely different problem.

Posted by thibodeaux on May 05 2013,06:44
.5 * a * t^2 + v0 * t


Posted by Malcolm on May 05 2013,09:06

(TheCatt @ May 05 2013,05:51)
QUOTE
Her: That's an entirely different problem.

I would have responded with, "Ok, let's test this theory of yours."  Then I would have found the nearest calculus textbook and thrown it directly at her.
Posted by TheCatt on May 05 2013,12:50
Well, I was in 10th grade, I didn't know calculus yet... but, like Thib's formula, it's a square plus a triangle.
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