Fibonacci Numbers and Plants

Have you ever wondered why so many plants grow in Fibonacci Numbers? Vi Hart offers a great explanation (with hands-on activities) in these three videos — and she introduces a new species called the slugcat, which my daughter thinks is adorable.

Spirals, Fibonacci, and Being a Plant [1 of 3]

http://youtu.be/ahXIMUkSXX0&hd=1&rel=0

Spirals, Fibonacci, and Being a Plant [2 of 3]

http://youtu.be/lOIP_Z_-0Hs&hd=1&rel=0

Spirals, Fibonacci, and Being a Plant [Part 3 of 3]

http://youtu.be/14-NdQwKz9w&hd=1&rel=0