This resource was created with explicit instruction in mind. It will help teachers present information, develop concepts, demonstrate processes and revise. The language is concise. The graphics are relevant and eye-catching.

PowerPoint animations are used to present ideas, one step at a time. Click on Slide View in the Status Bar when presenting. After an animation, or series of animations, the presentation stops to enable clarification and discussions. Tap the back arrow to replay an animation or click on the screen to continue.

To protect the animations, this resource is Read Only.

Focus

• revise how to measure angles with a protractor
• investigate the properties of complementary and supplementary angles, angles on intersecting lines and angles meeting at a point
• calculate the size of unknown angles by writing and solving number sentences