Trig: 3/21-3/22: 3-3 The Unit Circle

To introduce the idea of "the unit circle" and how it connects with SOHCAHTOA, special right triangles, and other concepts we've been using, we watched a 10 min video from khanacademy.org. Here is the link as well as a link to another video from the same website explaining it a little bit more :)
"The Unit Circle Definition of Trigonometric Function"
"Unit Circle Definition of Trig Functions" This one really is a "pre-quel" to the one above :).