Trigonometric Ratios and the Unit Circle
Students explore the unit circle to determine exact values for trigonometric ratios of special angles. They extend their understanding of sine, cosine, and tangent beyond right triangles.
About This Topic
Students explore the unit circle to determine exact values for trigonometric ratios of special angles. They extend their understanding of sine, cosine, and tangent beyond right triangles.
Key Questions
- How does the unit circle define trigonometric ratios for any angle?
- What are the exact values for special angles?
- How do we use the CAST rule to determine the sign of a ratio?
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5E Model
The 5E Model structures lessons through five phases (Engage, Explore, Explain, Elaborate, and Evaluate), guiding students from curiosity to deep understanding through inquiry-based learning.
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