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Mathematics · Measurement & Trigonometry
Unit Circle, Years 10–11
Students drag an angle around the unit circle and observe live sine, cosine and tangent values, coordinates and exact values at common special angles in degrees or radians. The full interactive is available to licensed Education Universe users.
Years 10–11Explorer
Learning outcomes
- Relate sine and cosine to coordinates on the unit circle.
- Determine the sign of trigonometric ratios in each quadrant.
- Recall exact values at special angles.
Teaching guidance
Ask students to predict the sign of each ratio in a quadrant before dragging the angle there.
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Unit Circle is one of the licensed interactives in The Education Universe. This page describes it; teachers use it in lessons and classes with a licence or the free trial.