Activities & worksheets

How special are the trigonometric ratios?

1. Introduction with real life examples  Notes Presentation Students’ work
2.  How are the ratios determined? Student version Teacher version
3. Relations among the ratios Student version Teacher version Answers in excel
4. Worksheets & activities                    designed by teachers Tangent with sides


Activity ideas

Four triangles.ggb

30 degree RA Tri.ggb



Worksheet ideas


Online resources

ETV program


Questions for ETV


Showcase Ideas
Post Exam Activity – Using trigonometry to measure the height of an object

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