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James Tanton
An Aussie fellow living in the US publishing math, videos, puzzles & joyful curriculum for students & teachers. Check out and below!
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James Tanton 2h
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James Tanton 2h
Yes ... bicycle tracks are fascinating!
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James Tanton 6h
An old video: Why do you flip the inequality sign when multiplying an inequality through by a negative number?
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James Tanton 12h
I have this book and there is this video and I can happily share the power point of the talk (but it might not make too much sense) if you email me.
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James Tanton 12h
How fun for a twitter puzzle to make it to a departmental white board!
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James Tanton 14h
In a 3-4-5 triangle, one side length equals the average of the other two.: 4 = (3+5)/2. Is this the only right triangle with this property?
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James Tanton retweeted
WaMathConf 20h
Registration is now open for the 2018 Washington College Mathematics Conference, May 17–19 in with keynote speaker — hope to see you there!
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James Tanton Jan 21
has a fabulous accessible app for curated top-quality math videos! Type in any specialised topic and have high-quality videos one that topic at your fingertips!
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James Tanton Jan 21
has create a phenomenal web app for pure uplifting joy and deep understanding in math. See how incredibly far the simple story of place value can take you with . (Over 3 million students and teachers have explored the app!)
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James Tanton Jan 21
has a week long set of community online math games in the works, designed to promote math community, math joy, and doing good for one's school through community effort. They're branching out to the US with these for February.
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James Tanton Jan 21
Hear! Hear! Beautiful piece by Let's show, teach, and reward(!!!) the humanness of mathematics.
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James Tanton retweeted
ST Math Jan 21
The Global Math Project: Uplifting Mathematics for All by
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James Tanton Jan 21
An old video: 5.8% of the powers of two begin with a 7. And about 10% of those begin with 77 and about 10% of those with 777!
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James Tanton Jan 21
One leg of a right triangle is twice as long as the diameter of the incircle of that triangle. How long is the hypotenuse of the triangle?
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James Tanton Jan 20
Have you tried playing with a 1<--10 machine with two rows of boxes, one for real part and one for imaginary part?
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James Tanton Jan 20
An old video: The power of the pigeon-hole principle:
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James Tanton Jan 20
has produced a Piles and Holes app that includes videos from me. Here's a little piece about it: Can you track it down from there?
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James Tanton Jan 20
You'll find Exploding Dots here and here . Cheers, J.
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James Tanton Jan 20
Here's the original website and here's the site that has all that and a cool web app!
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James Tanton Jan 20
99 numbers are written on a page & pairs of numbers are connected with line segments. Each number is connected to at least 2 other numbers & each number equals the average of the numbers it is connect to. What is the largest poss count of distinct numbers that appear on the page?
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