Why are we Earthlings obsessed with the numbers 10, 12, 20, and 60?
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Why it's on BrighterTube
From a channel a BrighterTube curator approved in full · 80% confidenceFrom a channel Lumen includes in full: James Tanton, a maths educator and former MAA mathematician-at-large, shows how to think through maths problems with visual approaches (exploding dots, arithmetic and algebra).
What you'll learn
A 5-minute video from James Tanton's catalogue; the title names its topic.
Video by James Tanton, played through YouTube's embedded player.