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Math is often called the universal language because no matter where you're from, a better understanding of math means a better understanding of the world around you. Learn about math concepts such as addition, subtraction, fractions, ratios and more.

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What is number theory?

For many of us, a number is just a number, a bit of information that tells you, say, what time it is. But mathematicians look at that same number and divine relationships that underlie nature itself. Ready to enter the trippy world of number theory?

Chaos theory is the idea that the ordered, obsequious universe we take for granted may be the exception to the rule. Learn more about chaos theory. See more »

What is number theory? Learn how mathematicians use number theory to define relationships that underlie nature itself. See more »

You use the number zero all the time, but it sometimes isn't a number at all. Learn about the origins and meanings of zero. See more »

Fractals have been around forever but were only defined in the last quarter of the 20th century. Can you wrap your brain around how fractals work? See more »

Fractal geometry transcends the Euclidean dimensions in mind-blowing ways. Quantify your knowledge of fractals with this brain-bending quiz! See more »

A world without math is unimaginable. Learn how different branches of math help demystify the world around us. See more »

Tessellations consist of a single shape repeated over a two-dimensional plane without gaps. Learn about tessellations at HowStuffWorks. See more »

Tessellations are everywhere you turn when you know what to look for. Test your knowledge with this tessellations quiz. See more »

How are Fibonacci numbers expressed in nature?

Fibonacci numbers create a mathematical pattern found throughout nature. Learn where to find Fibonacci numbers, including your own mirror. See more »

A fascinating article that explains Pi and different ways of calculating Pi! See more »

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