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Doodling in Math Class: Spirals, Fibonacci, and Being a Plant [2 of 3]

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Uploaded on Jan 9, 2012

Part 1: http://youtu.be/ahXIMUkSXX0
Part 3: http://youtu.be/14-NdQwKz9w
More on Angle-a-trons: http://www.youtube.com/watch?v=o6W6P8...

Here is a program that draws plant leaves at whatever angle you want: http://www.khanacademy.org/cs/plant-l...

Note: Beautiful spirally non-Fibonacci pinecones are very rare! If you find one, keep it.

My personal website, which you might like: http://vihart.com

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