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Trigonometry (5 lessons)

In this sequence of 5 lessons, students learn to use sine, cosine, and tangent, and their inverse functions, to find unknown sides and angles in right-angled triangles.

Additional details

Year level(s) Year 9
Audience Teacher
Format Web page
Teaching strategies and pedagogical approaches Explicit teaching, Questioning, Worked examples, Mathematics investigation
Keywords summative assessment, right-angled triangles, solve problems, apply trigonometric ratios

Curriculum alignment

Curriculum connections Numeracy
Strand and focus Measurement, Space
Topics Pythagoras and trigonometry
AC: Mathematics (V9.0) content descriptions
AC9M9SP01
Recognise the constancy of the sine, cosine and tangent ratios for a given angle in right-angled triangles using properties of similarity

AC9M9M03

Solve spatial problems, applying angle properties, scale, similarity, Pythagoras' theorem and trigonometry in right-angled triangles


Numeracy progression Understanding geometric properties (P7)
Understanding units of measurement (P10)
Proportional thinking (P7)

Copyright details

Organisation

Victoria State Government Department of Education

Copyright

© State Government of Victoria. Creative Commons BY 4.0.