Creating calibers to calculate the GOLDen ratio

We have been learning about Patterns in Math class. One of the coolest patterns that exists is the Fibonacci sequence: 0, 1, 1, 2, 3, 5, 8, 13 , 21 etc.  Here students learnt how to calculate the golden ratio (1.618) using the Fibonacci sequence. The calibers they made help to mesure the golden ratio.