November 23rd is Fibonacci Day, an annual holiday that honours one of the most influential mathematicians of the Middle Ages - Leonardo Bonacci.
November 23rd is celebrated as Fibonacci Day because when the date is written in mm/dd format (11/23), the digits in the date form a Fibonacci sequence.
One of the beauties of the Fibonacci sequence is that the series is evident all over the natural world. Petal arrangements in flowers, the ordering of leaves in plants, the shell of the nautilus, the DNA molecule and even hurricanes show patterns that correspond to the sequence.
1, 1, 2, 3, 5, 8, 13, 21, ...
To celebrate the day in school we will have lessons about the sequence in maths. In art, students will learn how the golden section and the Fibonacci numbers are evidenced in works of art. In music students will look at how the keys on the piano link to the Fibonacci numbers. Around school there is also a Fibonacci hunt, with a prize draw for students who find the first 8 terms of the sequence. With the challenge of finding any teachers that have a room number that is part of the Fibonacci sequence.