Angle Teacher Resources
Find Angle educational ideas and activities
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Basic Trigonometry and Radians
A fabulous set of examples and problems that introduce basic trigonometry concepts, this packet is set apart by the care it takes to integrate both radians and degrees into the material. After defining radians, the author demonstrates...
9th - 12th Math CCSS: Adaptable
Applications of Trigonometric Functions
Using trigonometric ratios to solve geometry and application problems is the focus of this detailed problem set and solution presentation. The presentation covers many ways to use trigonometry, from finding missing measures in right...
10th - 12th Math CCSS: Adaptable
The unit circle definition of trigonometric function
In this video, Sal shows how the sine and cosine of an angle are defined on the unit circle. He inscribes a 30-60-90 triangle in the unit circle and explains how one can use SOH-CAH-TOA to find the coordinates on the circle.
9 mins 10th - 12th Math
Round and Round the Unit Circle
Your young trigonometry learners will analyze and discover the many valuable relationships on the Unit Circle in this very rich collaborative task. Using co-terminal and reference angles in degrees and radians, learners find and label...
9th - 12th Math CCSS: Designed
Trigonometry Word Problems (Part 1)
Sal starts to solve a trigonometric word problem of a wayward ship captain who veers off course and once aware of his predicament, needs to know how far he is from his destination. Instead of using the Law of Cosines in his solution, Sal...
4 mins 10th - 12th Math