Archimedes Volume of Sphere with Jamie York

Jamie York, Waldorf math educator, author and math missionary shows how Archimedes calculated the volume of a sphere. This video is an excerpt from Jamie York's 10th Grade Online Workshop in the Art of Teaching Math. Jamie is also the author of the Making Math Meaningful™ Waldorf math curriculum books and founder of Jamie York Math Academy. For more information, visit JamieYorkPress.com.

[@agharley]

As a former student of Mr. York's from almost two decades ago, I find his voice to be immensely calming.

[@jsano2754]

So gay, wtf is this comment. Focus on the mathematics.

[@InvaderMixo]

Beautiful beautiful beautiful. Great chalk work. Very pleasantly explained.

[@daisyevans8663]

Love this. Wish I could teach Steiner maths like this.

[@AsBi1]

very helpful .

[@patricianguyen7378]

Amazing

[@chanakyasinha8046]

That was smart move of transferring area equation to 3d

[@martovify]

gorgeous.

[@martovify]

where is the other cone? why isn't it cylinder=2cone+sphere?

[@MyTomServo]

He should have said double cone I think

[@emilywong4601]

A physics teacher told me, about 10 years ago, that Archimedes calculus methodology had been discovered.

[@tommyjames4881]

why is OA = OM?

[@sianstpaul1349]

GDEF is a square, and it must be a square. Triangle OMA is 45 degree. OM equals OA.

[@eyerusalem8089]

i do not understand how oa=om

[@jsano2754]

Archimedes was high on potenuse 😅

[@jsano2754]

So this still doesn't explain why its 4/3 * pi * r2

[@rnazarian51]

The genius of ancient Greek mathematicians always makes me stunned. without them, the world was undoubtedly a primitive place.

[@jsano2754]

Check out the Egyptians then, they were a much more advanced civilisation. Greeks were mediocre in comparison.

[@AbC-bj3gs]

AWESOME, a masterpicece

[@jsano2754]

Why do u need 3 other shapes to find the volume of a sphere? This isn't math, its physics now.

[@trumplostlol3007]

Archimedes is one of the greatest mathematicians. Calculus is hiding a lot of the intuition behind the math.