Maths Week 2015

To celebrate maths week why not take a look at some facts, videos and brainteasers on theses sites:
You will find out all about:
Euler's formula on https://www.mathsisfun.com/geometry/eulers-formula.html 
The Golden Ratio on https://www.mathsisfun.com/numbers/golden-ratio.html
Fibonacci Numbers on http://www.sciencekids.co.nz/videos/math/numbersofnature.html

About Fibonacci:
His real name was Leonardo Pisano Bogollo, and he lived between 1170 and 1250 in Italy.
"Fibonacci" was his nickname, which roughly means "Son of Bonacci".
As well as being famous for the Fibonacci Sequence, he helped spread Hindu-Arabic Numerals (like our present numbers 0,1,2,3,4,5,6,7,8,9) through Europe in place of Roman Numerals (I, II, III, IV, V, etc). That has saved us all a lot of trouble! Thank you Leonardo.
Fibonacci Day is November 23rd, as it has the digits "1, 1, 2, 3" which is part of the sequence. So next Nov 23 let everyone know!
The Fibonacci Sequence is the series of numbers:
0, 1, 1, 2, 3, 5, 8, 13, 21, 34, ...
The next number is found by adding up the two numbers before it.

• The 2 is found by adding the two numbers before it (1+1)
• Similarly, the 3 is found by adding the two numbers before it (1+2),
• And the 5 is (2+3),
• and so on!

Here are some images of the Fibonacci sequence in Art, Architecture and Nature:
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