Please note: This site contains links to websites not controlled by the Australian Government or ESA. More information here.
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 10 |
---|---|
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 | Geometry, Build understanding, Apply understanding |
Topics | Pythagoras and trigonometry |
AC: Mathematics content descriptions |
ACMMG273
Establish the sine, cosine and area rules for any triangle and solve related problems
|
Copyright details |
|
Organisation | Inquiry Maths |
Copyright | © Andrew Blair 2012-21. Creative Commons BY-NC-SA 4.0. |
Related resources
-
Simultaneous equations
This prompt presents simultaneous equations with related coefficients.
Resource details -
Quadratic equations
Using a very open prompt, students explore the product of linear expressions and the factorising of a quadratic expression.
Resource details -
Division and subtraction
This prompt leads into an investigation of the division and subtraction of mixed numbers and the connection between division and subtraction.
Resource details -
Rectangle formula
This visual prompt explores the array model and a related formula.
Resource details