# Polar Coordinates

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Good reference sheet

Watch this fun animation of the various radian measurements around a circle. http://mathfour.com/?p=9743

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Here is a FREE (for now:) poster linking the parts of a parabola to the questions students will be asked when solving quadratic word problems...

How to Factor Polynomials Easily - The British Method...interesting We call this the "AC Method" in the good ol' US of A

Rotations on the Coordinate Plane - layered plate activity

Find curves in monuments, buildings and water jets and fit a parabola to them using dynamic geometry software." Quadratic graphs are everywhere you look. They can describe the paths of rockets, balls and jets of water. Because of their symmetry you will see parabolas in bridges, buildings, sand dunes... Understanding their equations is hence hugely important in the fields of engineering and science. This...

One of my favourite Spiked Math cartoons -- complete with all the equations!

OMG, this actually makes sense.

Precalculus Equations with Real World Objects