This is a 41-page guide for teachers. It contains an introduction to scale drawings and similarity, and in particular the tests for triangles to be considered similar. Applications of similarity are included throughout the module.
The modules are written for teachers. They provide the mathematical background, together with other resources, to enable teachers to plan the development of topics in their classrooms.
This module can be used in conjunction with Module 9: Measurement and Geometry: introduction to plane geometry - teacher guide, Module 13: Measurement and Geometry: construction - teacher guide, Module 21: Measurement and Geometry: rhombuses, kites and trapezia - teacher guide, Module 20: Measurement and Geometry: parallelograms and rectangles - teacher guide, Module 14: Measurement and Geometry: congruence - teacher guide and with several of the measurement modules. Together with several other modules, these modules provide material for teaching the geometry components of the Australian Curriculum for years 7 to 10.