It’s fucking pi. It’s a constant that will never change in their entire lives, just teach reality the first time instead of making up a thousand little lies to correct later.
Gotta cut it off at some point though, right? How many decimals? 10, 4, 1, or 0?
Plus, this is a test not the knowledge delivery. Some thing as ‘assume a flat plane with no friction’ for a physics test. Yeah it’s not 100% accurate but the test taker can be evaluated on the methods
Everything is knowledge delivery if the knowledge is correct. And we already have the decimal cut off, it’s 3.14. You can even find a dozen scientific papers as to why this is specific enough for almost every purpose.
So? You think you’ll get the correct result by using 3? Or 3.14? Not quite. You can only get infinitesimally close to the correct result by increasing digits of pi.
And of course, if you really need that circumference for something critical, guess what? You use the things people developed for this very problem, software packages, and so on. And of course, you get it double checked, triple checked.
If it’s assume pi is 5, it’s not misinformation. If they point guns at kids and say it’s 5 for real, then yes.
Or you could just use 3.14 which is infinitesimally more correct than 5, not lie about the number and aim for correctness and accuracy so people learn how to do things right the first time.
If you can’t handle a few decimal points then you aren’t ready for pi, go back to third grade.
I don’t think you understand what infinitesimally means! It means the opposite- you want to use ‘infinitely’ there. Because you’re kinda agreeing with me otherwise xD
Now, not being a condescending asshole, I really take issue with you calling an approximation a ‘lie’. And honestly, who’s multiplying decimal points mentally? That’s difficult. Use a calculator. Want to avoid calculators for an exam? Simplify! That’s why they use 5 and not 3.14.
I was typing in a rush and mistyped, but you understand what I meant.
Simplify! That’s why they use 5 and not 3.14.
That’s a bullshit excuse. 3 could be argued but 5 is straight disinformation. And I do multiplication of decimals in my head because I was taught how to in school, that’s how far behind the US system is.
Sure, until you actually need the correct result of the circumference of a circle and think pi is 5.
Misinformation is education. Welcome to the future.
Like, at least make it 3 instead of 5. Still allows for mental math
It’s fucking pi. It’s a constant that will never change in their entire lives, just teach reality the first time instead of making up a thousand little lies to correct later.
What do you mean there are more than 3 states of matter?
Wait until they start to learn about quantum foam and super fluids.
Gotta cut it off at some point though, right? How many decimals? 10, 4, 1, or 0?
Plus, this is a test not the knowledge delivery. Some thing as ‘assume a flat plane with no friction’ for a physics test. Yeah it’s not 100% accurate but the test taker can be evaluated on the methods
How are you rounding 3.14… to equal 5?
But why 5 and not 4 or 3?
Everything is knowledge delivery if the knowledge is correct. And we already have the decimal cut off, it’s 3.14. You can even find a dozen scientific papers as to why this is specific enough for almost every purpose.
Edit: Also, when it’s mirrored it spells PIE.
Or just use a cube and say one side is 5 long. Does it really have to be a cylinder?
So? You think you’ll get the correct result by using 3? Or 3.14? Not quite. You can only get infinitesimally close to the correct result by increasing digits of pi.
And of course, if you really need that circumference for something critical, guess what? You use the things people developed for this very problem, software packages, and so on. And of course, you get it double checked, triple checked.
If it’s assume pi is 5, it’s not misinformation. If they point guns at kids and say it’s 5 for real, then yes.
Or you could just use 3.14 which is infinitesimally more correct than 5, not lie about the number and aim for correctness and accuracy so people learn how to do things right the first time.
If you can’t handle a few decimal points then you aren’t ready for pi, go back to third grade.
I don’t think you understand what infinitesimally means! It means the opposite- you want to use ‘infinitely’ there. Because you’re kinda agreeing with me otherwise xD
Now, not being a condescending asshole, I really take issue with you calling an approximation a ‘lie’. And honestly, who’s multiplying decimal points mentally? That’s difficult. Use a calculator. Want to avoid calculators for an exam? Simplify! That’s why they use 5 and not 3.14.
I was typing in a rush and mistyped, but you understand what I meant.
That’s a bullshit excuse. 3 could be argued but 5 is straight disinformation. And I do multiplication of decimals in my head because I was taught how to in school, that’s how far behind the US system is.
That’s impressive. Mental math isn’t one of my talents to be honest. And let’s agree to disagree about the disinformation.
It’s a skill like any other, you have to be taught it to learn it, and you need practice to get better.
Lots of skills in the world, some more useful than others.
I find the basic building blocks of comprehension to be important.