1. Naturally Fibonacci Heath E. Capello NSF North Mississippi GK-8
University of Mississippi
April 2006
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2. NSF North Mississippi GK-8
Reproducing Rabbits
There is one immature breeding pair to start
Pairs of rabbits begin breeding when they are two months old
Upon reaching sexual maturity, each pair of rabbits gives birth to exactly one pair each month
No rabbits die
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3. NSF North Mississippi GK-8
Reproducing Rabbits
Biologically, what is wrong with this model?
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4. NSF North Mississippi GK-8
Spiraling Squares 2 3 5 8 1 2 3 1 1 1 2 3 5 1
Yellow is the original 1 unit square. Squares always share a side, rotating clockwise. The side lengths increase in a Fibonacci manner, 1,1,2,3,5,8,13 2 1
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Adding a curve
Adding a quarter of a circle to each square of the spiral
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6. The same curve, biologically speaking
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Pinecones
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Cauliflower
Number of red spirals: 5
Number of blue spirals: 8
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9. Romanesco – a broccoli/cauliflower cross
Number of blue spirals: 21
Number of red spirals: 13
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10. NSF North Mississippi GK-8
Source
This PowerPoint is an adaptation of Dr. Ron Knott’s website. Lots of resources, explanations, and further activities can be found on his page. The address is <
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