guycord
91
Scribed methodology….
May 08, 2022,18:43 PM
This message has been edited by cazalea on 2022-05-11 15:36:19
Comments:
view entire thread
math question for 12 year olds
By: terbaboom : May 8th, 2022-12:53
this is a question in my son's math homework. poor boy... and of course, poor father too 😅 ...
Darn...Im rusty
By: guycord : May 8th, 2022-13:41
The area of a quarter is Pi / 4 x r^2 >>>>. The White square is a height of triangle base thing so r^2 /2 as we know the hypotenuse=r >>>>> Hence the area of the curved areas is [(Pi / 4 x r^2) - (r^2 /2)] x 2 = A1 >>>> The small shaded square (A2) is kno...
thanks! 👍
By: terbaboom : May 8th, 2022-22:37
as he hasn't learnt pythagoras' theorem, I've used the "area of biggest square in a circle" (2×r^2) to explain to him
Fabrizio,
By: InHavenPro : May 8th, 2022-15:54
I know now whom to turn to if I ever end up having children in need of math tutoring! xD Somehow, despite having two parents who were both either excellent or brilliant at math, I utterly 'suck' at it LoL ........
I see you're in Singapore...
By: mdg : May 8th, 2022-14:24
...kids that age in the US would never get that question until late in high school if ever : )
Yes...
By: mdg : May 8th, 2022-16:38
...but I won't say why because it will veer into politics.
MIT is impressive...
By: mdg : May 9th, 2022-02:04
...a whole other level of smart than most people realize.
😂👍👍❤️
By: FabR : May 11th, 2022-08:55
;-)))
By: FabR : May 9th, 2022-07:20
In my day job I was MD of Excel Math elementary mathematic curriculum
By: cazalea : May 11th, 2022-15:49
for a decade, and I oversaw the production of K-6 lessons in English and Spanish, print and electronic formats, books for students, teachers and parents. I retired 10 years ago and couldn't solve that problem now without thinking hard and doing some diagr...