Trigonometry – Circular Functions and The Unit Circle

Oh. Ba. MATH. I mean, ObaMATH is back with an awesome lesson on Circular/Periodic Functions and an introduction to The Unit Circle! Starting in degrees (although it can be done in radians too), the Commander-in-TEACH walks us through the sin and cos of every major angle on The Unit Circle. Specifically, they're the angles from the 30-60-90 and 45-45-90 triangles. YAY MATH! Learning should always be fun and connective. Please visit http://www.yaymath.org for: • all videos • free quizzes • free worksheets • debut book on how to connect with and inspire students • all-in-one math courses that teachers and parents can use, backed by Yay Math energy