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- Year 9
Trigonometry
Lessons (12)
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I can recognise that similar shapes have sides in proportion to each other but angle sizes are preserved.
I can use Pythagoras' theorem to find the length of any side of a right-angled triangle.
I can appreciate that the trigonometric functions are derived from measurements within a unit circle.
I can recognise the right-angled triangle within a unit circle and use proportion to scale to similar triangles.
I can derive the sine and cosine ratios from the sides of a right-angled triangle.
I can derive the tangent ratio from the sides of a right-angled triangle.
I can use the sine ratio to find the missing side or angle in a right-angled triangle.
I can use the cosine ratio to find the missing side or angle in a right-angled triangle.
I can use the tangent ratio to find the missing side or angle in a right-angled triangle.
I can choose the appropriate trigonometric ratio to use to solve problems in right-angled triangles.
I can choose the appropriate method to find the missing side in a right-angled triangle.
I can use my knowledge of trigonometry to solve problems.
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