Intersection Math

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Grade Vs Difficulty:
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This lesson explores an interesting "multiplication" operation.

It is a sample from

J. Tanton, Mathematical Outpourings: Newsletters and Musings from the
St. Mark’s Institute of Mathematics

The sample video is from the 2010 Circle on the Road workshop

http://www.youtube.com/user/MathCircles#p/u/4/mqjMy_F4HJ8