What is a Radian?

This is an applet illustrating what a radian is. This wasn't made by me but by a math teacher colleague.

Unraveling the Circle

Use the slider to move the point C around the circle. Click on the check boxes to see the trace of each coordinate of the point C.

Transforming the Sine Function

Transforming The Sine Function

Six Basic Trig Functions in the Unit Circle

A quick look at the physical representations of the six basic trig functions in the unit circle

Restricting Domains

Restrict the domain of the function by using the sliders to create an inverse function.[br]Use f(x)= to change the original function in the input bar.

Explore Law of Cosines

Law of Sines 1.1

Unit Circle

Drag the red point around the unit circle.