James Tanton (@jamestanton) 's Twitter Profile
James Tanton

@jamestanton

An Aussie fellow promoting uplifting joyful genuine math thinking and doing for students & teachers alike. Thrilled: globalmathproject.org reaching millions!

ID: 100076513

linkhttp://www.gdaymath.com calendar_today28-12-2009 23:28:57

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James Tanton (@jamestanton) 's Twitter Profile Photo
James Tanton
@jamestanton

a year ago

Take 10 red cards and 10 black cards. Shuffle them and make a pile of 6 and a pile of 14 cards. Count the red cards in the small pile & the black cards in the big pile. Repeat several times. What do you notice about the two counts each time? Why so?

Take 10 red cards and 10 black cards. Shuffle them and make a pile of 6 and a pile of 14 cards. Count the red cards in the small pile & the black cards in the big pile. Repeat several times. What do you notice about the two counts each time? Why so?