M-GEO-049Foundation & HigherReview: Pending

Use exact trigonometric values

Geometry and measures · Trigonometry (T-GEO-021)

v1 mapping, pending teacher review. Only AQA and Edexcel are mapped so far. The first 3 pilot worksheets and their worked answers are available; remaining worksheets are coming soon. All videos are still coming soon.

Retrieval: Special triangles and basic ratios
Fluency: Values at specified standard angles
Reasoning: Explain the ratio or rule using the known information.
Application: Calculate an exact right-triangle length
Common misconception: Opposite and adjacent depend on the chosen reference angle.

Video brief

Model how to use exact trigonometric values. Explain each step; pause for a matching shadow question.

Planned video: V-GEO-049 · Video coming soon

Worksheets

Worksheets coming soon

Note: Foundation practice should use the specified exact values directly; advanced surd manipulation is separately tagged Higher.