Please note: This site contains links to websites not controlled by the Australian Government or ESA. More information here.
History of trigonometry
A three-part history of the origins of trigonometry.
Additional details |
|
| Year level(s) | Year 9 |
|---|---|
| Audience | Teacher |
| Purpose | Content knowledge |
| Format | Web page |
| Keywords | Pythagoras, Hypotenuse, Adjacent, Opposite, Tangent, Cosine, Sine, Angle, Ratio, Similar, Trigonometry, Right-angled triangle |
Curriculum alignment |
|
| Curriculum connections | Critical and creative thinking, Numeracy |
| Strand and focus | Space |
| Topics | Pythagoras and trigonometry |
| AC: Mathematics (V9.0) content descriptions |
AC9M9SP02
Apply the enlargement transformation to shapes and objects using dynamic geometry software as appropriate; identify and explain aspects that remain the same and those that change
AC9M9M03
Solve spatial problems, applying angle properties, scale, similarity, Pythagoras' theorem and trigonometry in right-angled triangles |
| Numeracy progression |
Understanding geometric properties (P7)
Proportional thinking (P7) Understanding units of measurement (P10) |
Copyright details |
|
| Organisation | NRICH |
| Copyright | © 1997-2021 University of Cambridge. Free-for-education material. |
Related resources
-
Right-angle triangle trigonometry
In this unit students build an understanding of ratios in right triangles, which leads to naming cosine, sine and tangent as trigonometric ratios.
Resource details -
Volume and surface area
Area of quadrilaterals, surface area and volume of prisms and cylinders
Resource details -
Pythagoras’ theorem
Introducing the Pythagorean theorem and Pythagorean triads
Resource details -
3.2 Trigonometry
How to introduce trigonometrical vocabulary and identify misconceptions
Resource details -
Introducing trigonometry
In this series of lessons, students will explore the relationships between the sides and angles of right-angled triangles. Students will measure similar triangles to find the trigonometrical ratios. The resources include teacher notes and student activities.
Resource details