# Explore Mathworld Wolfram, Wolfram Alpha, and more!

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A free resource from Wolfram Research built with Mathematica technology.

Khan Academy Site looks excellent as far as I can see its a not for profit organisation providing free educational resources and it looks like you can earn badges and points for use or just research - not sure what age its aimed at but sure it will be som

http://www.classcreator.io/creative-challenges/

print free graph paper -- you can set specifications of grid

Precalculus for dummies cheat sheet

Here's a nice help sheet for students on converting among metric units.

Solving Linear Equations (Incuding Negative Values) -- Mixture of Forms x/a ±; b = c and a/x ±; b = c (A)

ctcmath.com - online lessons and quizzes to move you through math

The Golden Ratio: a designer's guide. 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.

Great Math Program....available digital or book format!!