\( \DeclareMathOperator{cosec}{cosec} \)

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Here are some specific activities, investigations or visual aids we have picked out. Click anywhere in the grey area to access the resource.

- Angle Points Video See a demonstration of angles in a full turn around a point, angles together on a straight line and vertically opposite angles.
- Angle Points Apply the properties of angles at a point, angles on a straight line and vertically opposite angles.
- Angle Chase Find all of the angles on the geometrical diagrams.
- Angle Theorems Diagrams of the angle theorems with interactive examples.
- Angles Mixed Find the unknown angles by using the basic angle theorems.
- Geometry Toolbox Create your own dynamic geometrical diagrams using this truly amazing tool from GeoGebra.

Click on a topic below for suggested lesson Starters, resources and activities from Transum.

How do you teach this topic? Do you have any tips or suggestions for other teachers? It is always useful to receive feedback and helps make these free resources even more useful for Maths teachers anywhere in the world. Click here to enter your comments.