Who said anything about the result of the math being even?
I just said that 273770 was an even number.
Originally posted by: IAteYourMother
Originally posted by: OdiN
Originally posted by: mcmilljb
Originally posted by: OdiN
Originally posted by: ElFenix
Originally posted by: OdiN
What does leaving $7 on a table have to do with dividing $27.63 by 4?
who doesn't round at a restaurant?
It doesn't seem like it was a place you would tip at.
But if we want nice even numbers:
Divide $273,770 by 4.
I can tell you it will end with a .5(not an integer) because the last 2 digits are not a multiple of 20 just by looking at it. Definitely doesn't make nice even numbers.
273770 is an even number, last I checked.
hey moron, 10/4 is 2.5 10 is an even number. I can't tell if you're trying to be difficult on purpose or if that's your natural tendency.
Not to mention he's referring to the 70, not the entire number.
Originally posted by: jonks
Originally posted by: cubeless
Originally posted by: Paperdoc
The article makes a good point in saying that the choice of people in university Math Dept faculties is made ONLY from the very top echelons, and not from average students. And it happens that it is in those top echelons where the tests cited show an actual gender-related difference.
However, the tests are those done on kids half way through their teen years. Most phsychologists, sociologists and educators will tell you that, by that age, there has been a huge influence from "social norms" and expectations on each child's choice of interests and what they spend their time developing. From early childhood in North American society, girls are NOT encouraged as much as boys to play with things mathematical, scientific or mechanical. There is no doubt in my mind that that set of "norms" will produce fewer girls with highly develped skills in those areas by the time they hit 15.
Now, you can dismiss the phsychologists, sociologists and educators as liberal softheads if you want. That's just as solid an argument as claiming that all Techie Geeks should be dismissed because their egghead minds do not comprehend the real world. I'm sure I could find similar reasons to ignore anyone I choose by that logic. That way could be comfortable proclaiming, "Don't confuse me with facts; my mind's made up!"
spoken like a true liberal arts major...
seriously. maybe in 1950 or something, but growing up in the 80s no one was talking in my schools about how girls weren't supposed to be good at math, and the ratio in AP classes would have put any such rumors to bed real quick
It is. This is a common practice on tests that don't allow the use of calculators. Honestly, I'm sure most students could do the operations with 9.8 by hand or at least I could, but the test would probably have to be cut in half. I think having more problems tests your knowledge on physics more than using 9.8 does.Originally posted by: IAteYourMother
Originally posted by: Anubis
Originally posted by: BlackTigers
Originally posted by: DrPizza
Originally posted by: moshquerade
Originally posted by: oldsmoboat
This is sad but no matter how many times I show her, my daughter can't figure 10% of a number.
She couldn't do 10% of 100 without a calculator.
are you kidding me?!?!?!
I didn't even bat an eyelash when I read what he typed. I've seen far too many students these days who can't do 2 times 1/2 without a calculator.
You teach high school and this happens?
we live in NY, where we round gravity to 10 on the state senior physics test so the math is easier
I've done that on tests even in college.
I think.
Originally posted by: OdiN
Originally posted by: IAteYourMother
Originally posted by: OdiN
Originally posted by: mcmilljb
Originally posted by: OdiN
Originally posted by: ElFenix
Originally posted by: OdiN
What does leaving $7 on a table have to do with dividing $27.63 by 4?
who doesn't round at a restaurant?
It doesn't seem like it was a place you would tip at.
But if we want nice even numbers:
Divide $273,770 by 4.
I can tell you it will end with a .5(not an integer) because the last 2 digits are not a multiple of 20 just by looking at it. Definitely doesn't make nice even numbers.
273770 is an even number, last I checked.
hey moron, 10/4 is 2.5 10 is an even number. I can't tell if you're trying to be difficult on purpose or if that's your natural tendency.
Not to mention he's referring to the 70, not the entire number.
Who said anything about the result of the math being even?
I just said that 273770 was an even number.
Originally posted by: Anubis
Originally posted by: DrPizza
Originally posted by: Anubis
Originally posted by: BlackTigers
Originally posted by: DrPizza
Originally posted by: moshquerade
Originally posted by: oldsmoboat
This is sad but no matter how many times I show her, my daughter can't figure 10% of a number.
She couldn't do 10% of 100 without a calculator.
are you kidding me?!?!?!
I didn't even bat an eyelash when I read what he typed. I've seen far too many students these days who can't do 2 times 1/2 without a calculator.
You teach high school and this happens?
we live in NY, where we round gravity to 10 on the state senior physics test so the math is easier
I'm not sure if that was sarcastic or not. If a student has to show work, then of course, they'll use g to three significant digits. However, in preparing students to take a multiple choice exam (or to come up with good real-life estimates), I have no problem with instructing them to round it to 10 m/s² to make the mental math very simple. i.e. an object is dropped from a bridge and falls for 3 seconds. How tall is the bridge? Thought process: "after 3 seconds, it'll be going 30m/s, avg velocity = 15m/s, 15m/s for 3 seconds = 45 meters. So, somewhere pretty close to 45 meters; just a little less." A good multiple choice exam testing conceptual understanding wouldn't have two choices very close together to see if the student rounded to 10m/s² so they could do the arithmetic mentally.
i know why it was done Doc P, but i still think it was stupid, i thought it was stupid when i took the test in HS even before i decided to major in physics. the test is a joke, and that just made it even more of a joke.
Originally posted by: DrPizza
I'm not quite sure what you mean then. All of the answers on the state exam are based on 9.81 m/s², not based on 10m/s² Your comment therefore doesn't make sense. And, rounding it to 10 only causes a 2% error - pretty darn good for mental math. It's not like they picked 9.81m/s² because they wanted a number close to 10.