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Trigonometry (Years 9 and 10)

This paper introduces trigonometry by breaking it into two sections:

Understanding trigonometric functions
Using trigonometry to solve problems in context.

It provides details of the knowledge students should have and some of the misconceptions they may hold. Examples are given to illustrate what these misconceptions may look like, how to address them, and support teachers in developing pedagogical and content knowledge.

Additional details
Year level(s)	Year 9, Year 10
Audience	Teacher, School Leader
Purpose	Content knowledge
Format	Downloadable resources
Keywords	Trigonometry, ratio, sine, cosine, tangent
Curriculum alignment
Strand and focus	Geometry
Topics	Pythagoras and trigonometry
AC: Mathematics content descriptions	ACMMG223 Use similarity to investigate the constancy of the sine, cosine and tangent ratios for a given angle in right-angled triangles ACMMG224 Apply trigonometry to solve right-angled triangle problems ACMMG245 Solve right-angled triangle problems including those involving direction and angles of elevation and depression
Copyright details
Organisation	NCETM
Copyright	© Crown Copyright. Free-for-education material.