Cynthia Lanius has an amazing website full of activities on the Golden Ratio. Check it out here.

Doodling Fibonacci

Fibonacci and the world

The Golden Ratio is in everything (almost). How do Fibonacci Numbers relate to the Golden Ratio? What is the Greek name of the Golden Ratio?

How are the Fibonacci Numbers and the Golden Angle related? How is the Golden Angle derived? Does it come from phi? Love this page from Smith College on Phyllotaxis. Explains it all. (Say what?)

Find the golden angle in a plant with this app from