Image by Ethan Hein via Flickr
Just in case your math skills are a little rusty and your children haven't gotten to Fibonacci yet, this number sequence starts with 0 and 1. The rest of the numbers are the sum of the two previous numbers so the sequence goes 0, 1, 1, 2, 3, 5, 8, 13, 21, 34, 55, 89, 144...
The interesting thing to me is that these numbers are repeated throughout nature from the number of petals on a flower to the number of spirals on a sunflower. I did find a technical explanation about why this works that I'm not going to even try to repeat. Next time you're outside with your kids, send them off in search of natural examples of Fibonacci. Pinecones are probably a good one to look for in the fall - count the number of spirals going each way and you should end up with a Fibonacci number.
In closing, here is my Fib for the day - a 20 syllable poem that follows the 1/1/2/3/5/8 pattern.
Big,
Blue
Planet.
Our Kids' Earth.
Beautiful. Fragile.
Protect it for their tomorrow.