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Listed under:  Mathematics  >  Geometry  >  Lines  >  Perpendicular lines
Teacher resource

Secondary mathematics: different representations

These seven learning activities, which focus on 'representations' using a variety of tools (software) and devices (hardware), illustrate the ways in which content, pedagogy and technology can be successfully and effectively integrated in order to promote learning. In the activities, teachers use different representations ...


Glass pyramid - mathematics activities

This is a photograph of a skylight on Parliament House in Canberra. The skylight is in the shape of a square-based pyramid. It suggests investigations involving counting, sequencing, surface area, volume and maxima and minima, as well as connecting pyramids with their historical and cultural place. Determining ways to estimate ...

Interactive Resource

Linear equations and inequalities

This resource is a collection of screen displays of questions relating to linear equations and inequations. Graphing tasks involve determining the coordinates of two points on the linear function. Other tasks are presented as multiple-choice questions and involve finding slopes of lines, calculating intercepts with the ...


Perpendicular lines and linear equations

This digital presentation demonstrates solving a problem about finding the equation of a line perpendicular to a given line and passing through a specific point. The workings and solution are revealed slowly and in sequential steps with explanations provided at some points. The steps can be seen more quickly by selecting ...