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!

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

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James Tanton
@jamestanton

a year ago

The set of points equidistant from an infinitely long line and a point is a parabola. (What if the point is on the line?) Describe the set of points equidistant from a square a a point outside the square.

The set of points equidistant from an infinitely long line and a point is a parabola. (What if the point is on the line?) Describe the set of points equidistant from a square a a point outside the square.