Fabulous Fibonacci and his Nifty Numbers - free lesson plan from the Mensa Foundation. Designed for graders to be able to do alone (or usable either higher or lower with a teacher).

Golden Mean Ratio: The golden ratio describes the relationship between two proportions. The ratio between subsequent Fibonacci numbers approaches the Golden Ratio, denoted by the Greek letter Phi.

Art mimics nature ~ The Golden Ratio is a beautifully simple piece of mathematical theory that can help make your designs feel well proportioned and pleasing on the eye. We explain how to use it.

Integrated Lessons Take your geometry lesson up a notch by integrating the arts. This colorful geometry lesson is sure to engage your students and brighten up your classroom.