Lesson 2: The Fibonacci Sequence and the Golden Ratio

Leonardo Pisano

He is popularly known as Fibonacci

fillius Bonacci

Fibonacci, a shortened word for the Latin term "_______," which means "son of Bonacci"

Fibonacci Spiral

Using the first ten (10) numbers in the Fibonacci sequence 1, 1, 2, 3, 5, 8, 13, 21, 34, 55 as dimensions of adjacent squares, you can create a _______. When arranged in a certain way, the Fibonacci sequence creates a special spiral pattern

Divine Ratio or Divine Proportion

The Golden Ratio is also known as ______

Phidias

The symbol of the golden ratio is the Greek letter "phi" – Ф (uppercase letter) or φ (lowercase letter). It is named after the Greek sculptor _______.

Golden Ratio

It is an irrational number equal to 1.61803398874989484820... (approximately equal to 1.618)

Golden Spiral

constructed using the numbers in the Fibonacci sequence
Also known as Fibonacci spiral

Mona Lisa

Many artists who lived after Phidias have used the Golden Rectangle and the Golden Ratio like Leonardo Da Vinci in this painting.

Golden Rectangle

a rectangle whose sides are in the proportion of the Golden Ratio

Parthenon in Greece

an example of a temple that is believed to have the Golden Ratio in them

Proportions of the human body

The closer the _______ is to the Golden Ratio, the more aesthetic and beautiful the body is