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Scalene triangles
This prompt is a way of introducing the cosine rule for finding the angles in a scalene triangle. The resource includes classroom examples, teacher notes and guided questions, as well as alternative, extending prompts.
Additional details |
|
| Year level(s) | Year 9 |
|---|---|
| Audience | Teacher |
| Purpose | Assessment task, Extension, Student task, Teaching resource |
| Format | Downloadable resources |
| Teaching strategies and pedagogical approaches | Collaborative learning, Differentiated teaching, Explicit teaching, Feedback, Mathematics investigation |
| Keywords | scalene, triangle, trigonometry, cosine rule, angles |
Curriculum alignment |
|
| Curriculum connections | Critical and creative thinking, Numeracy |
| Strand and focus | Space, Build understanding, Apply understanding |
| 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 |
| Numeracy progression |
Understanding geometric properties (P7)
Proportional thinking (P7) |
Copyright details |
|
| Organisation | Inquiry Maths |
| Copyright | © Andrew Blair 2012-21. Creative Commons BY-NC-SA 4.0. |
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