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Monthly Archives: June 2012
Trig Decor
Who says trig is boring?
Geometric Series to the Rescue!
On a recent road trip, the driver asked me to compute the car’s mileage per gallon. She handed me a little notebook with odometer readings and gasoline gallons at each fillerup. I guess when you run a math club for … Continue reading
Posted in math, Math Education
Tagged computation, gas mileage, infinite geometric series, mental computation
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WIM Video: The Pigeonhole Principle
The latest in Elisenda Grigsby’s WIM Video series features Harvard graduate student and Girls’ Angle mentor Charmaine Sia. In it, she gives two applications of the pigeonhole principle: