5 Powerful Ways to Save Time As a Teacher - The number one thing teachers need? But helping teachers find more time has always been a problem I couldn’t solve.

Infographic: ElectricityA visual cheat sheet about electrical physics, containing the most important formulas of current and Ohm’s law expressed through an impossible water circuit analogy.(by Pierluigi Scotolati)

Cross Product - EVERYTHING You Need to KNOW. Covering the cross product formula, properties, and the determinant rule. This lecture even compares the differences between the dot product and the cross product. This video lesson also shows how to calculate the area of a parallelogram and the volume of a parallelepiped object. Great reference for those in multivariable calculus. Check it out today!

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The AP Calculus exams are known to be among the hardest tests to complete—so, let BarCharts take the guesswork out of how to study for them. Our comprehensive, guide is chock-full of helpful hints on how to prepare in advance;

The latest edition in our QuickStudy Math Fundamentals series, this comprehensive, 4 page guide examines word problems and how to solve them correctly.