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James Tanton
An Aussie fellow promoting uplifting joyful genuine math thinking and doing for students & teachers alike. Honored: reaching millions!
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James Tanton 5h
Still experimenting with cake! I've added extra footage to this and actually attempt cutting cake an infinite number of times. (Well ... five). Gotta love the cake paradox!
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James Tanton 13h
That fraction tree is astounding and deep! Will the fraction 103/266 appear? How do know? Might it appear more than once? What do you notice about the numerators as you read them left to right, top row down? The denoms? etc etc etc etc
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James Tanton 14h
WOWZA! This is just awesome! Sophisticated. Witty. Mathematically deep! Let's let "kids explain math to kids"! So impressed! Thank You! (May I post this video on the Exploding Dots site?)
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James Tanton 16h
We're doing it again this year: Oct 10 - 17, 2018, and going for 10 million students across the globe! Care to join us again?
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James Tanton 20h
There are infinitely many spheres that pass through three fixed (non-collinear) points in space. What curve is traced by the centers of all those spheres?
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Anand K.Vajapeyam 22h
“The Unreasonableness of K-12 Mathematics” by
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Andy Shores Jun 17
Replying to @jamestanton
But I wouldn't have found the solution without the mucking around with the other ideas. In addition, playing around with the wrong solutions gave me a better feeling for why my solution was correct. Thank you, for all the fun (and torture) over the last few days.
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James Tanton Jun 17
Looking forward to Quadrivium at MoMath this coming weekend! Might you be able to join us?
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Lindy Elkins-Tanton Jun 17
Happiness is a Sunday morning work and coffee date with the spectacular and .
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Republic of Math Jun 17
A simple answer to "Why does exploding dots work?" is because it allows and encourages kids to figure things out for themselves, in ways that make sense to them.
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James Tanton Jun 17
Morning task at a fancy coffee shop: Start carefully review the galleys of "Functions and Graphs." It's my Tanton take on functions and graphing functions in the HS curriculum. Looking forward to this coming out. (Kinda really like what I put together here!)
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James Tanton Jun 17
The message is ... "Open your mind to math. Open you mind to X. Open you mind to learning and living fully." where X = anything new and different to you!
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James Tanton Jun 17
Time for an ice-bucket challenge, well, an out-of-your-comfort-zone math/non-math interchange? Can we mathies practice opening our minds just as we ask our Ss to open theirs to math? Shall we share stories, photos, vids?
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Keith Devlin Jun 16
Good discussion of 's Exploding Dots by
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James Tanton Jun 17
Woohoo! An incredibly important book. The author's work here is stunning! This book will ease the minds and hearts and brains of so many. So accessible. So kind and honest. Beautifully written. Beautifully caring. And true to mathematics and its true joyous learning - for all!
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James Tanton Jun 17
asks some profound and important questions about in his latest Mathematical Enchantment. Would love to know your thoughts! As usual ... Beautiful essay! Thank you Jim!
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James Tanton Jun 17
A fixed sphere and a fixed plane in space. What surface is traced the centers of the all the spheres that are tangent to both the fixed sphere and the plane?
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Lindy Elkins-Tanton Jun 16
The novel experience of harvesting parsnips and beets in AZ in a light rain!
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𝒜𝓃𝓃𝑒 𝒫𝒶𝑜𝓁𝑒𝓉𝓉𝒾 𝐵𝒶𝓎𝓃𝒶 Jun 16
I agree. Just playing with various side lengths...
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James Tanton Jun 16
Why yes! Who knew that area can behave that way???!!!!!
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