Trigonometry
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Why this why now
Pupils have recently learned about geometrical properties of similarity and the Pythagorean Theorem. This knowledge is further developed to build on their understanding of congruence and similarity with right-angled triangles. In this unit, similarity is used to extend a right-angled triangle in the unit circle to any other right-angled triangle.
Prior knowledge requirements
- Label sides in right-angled triangles (opposite, adjacent, hypotenuse)
- Use sine, cosine and tangent ratios
- Rearrange and solve trigonometric equations
Threads
Why this why now
Pupils have recently learned about geometrical properties of similarity and the Pythagorean Theorem. This knowledge is further developed to build on their understanding of congruence and similarity with right-angled triangles. In this unit, similarity is used to extend a right-angled triangle in the unit circle to any other right-angled triangle.
Prior knowledge requirements
- Label sides in right-angled triangles (opposite, adjacent, hypotenuse)
- Use sine, cosine and tangent ratios
- Rearrange and solve trigonometric equations
Trigonometry
In this unit pupils learn how to recognise the relationship between the unit circle and the trigonometric ratios of sine, cosine and tangent. Pupils then apply this knowledge to solve trigonometric problems.
12 lessons in unit
slide decks, worksheet PDFs, quizzes and lesson overviews. You can select individual lessons from the Trigonometry unit and download the resources you need, or download the entire unit now. See every unit listed in our secondary maths curriculum and discover more of our teaching resources for secondary maths programmes.