# The Golden Number – Phi

June 13th, 2011 by ClickSchooling

Hi!  It’s Monday, June 13, 2011 and time for Math at ClickSchooling!

Recommended Website:Phi: The Golden Number

Age Range: 9 and up (with parental guidance)

This website is devoted to the exploration of Phi — an irrational number like Pi — that is the ratio of the line segments that result when a line is divided in a special way. You’ll find many demonstrations of Phi along with its history from ancient Greece and Egypt, to the Renaissance, to modern day with its appearance in quasi-crystals — a form of matter discovered in the 1980s.

When you get to the website click on the words “START HERE”  (near the top of the page under the “welcome” message) to get a basic introduction to the number and where it appears.

Then, return to the “Home” page and use the menu to see Phi demonstrated in all of these areas:

• Mathematics – Including Means, Fibonacci Patterns, Pascal’s Triangle, and more.
• Geometry – Look for Phi in Bucky Balls, Circles, Triangles, Orthogons, Quasi-crystals, Spirals, and more.
• Life — Explore Phi in Human Anatomy, Animals, Plants, DNA, and Population Growth.
• Design/Composition – Phi is in Art, Architecture, Color, Music, Poetry, Marketing, and even Credit Cards.
• Stock Markets – See how Phi and Fibonacci numbers are used to predict stock market moves.
• Cosmology – Phi appears in the Solar System, Universe, Quantum Matter, Quantum Time, etc.
• Theology – See a demonstration of Phi in the Bible. Note: The creator of this website calls himself “The Phi Guy,” and in addition to mentioning his credentials, credits his Christian faith for this website’s inspiration. He allows that everyone must ponder the natural physical laws of the universe and determine for themselves if it is part of a divine plan.

This is an ad-supported website that provides a fascinating demonstration of mathematics (and particularly Phi) in all aspects of life. It is beautifully illustrated and clearly written.