Angles 1 – What is an angle? Tandi Clausen-May Teaching Maths to Pupils with Different Learning Styles London: Paul Chapman, 2005 Click the mouse only when you see ‘Click the mouse’ . Otherwise you will miss some of the dynamic bits. Click the mouse.

An angle is a measure of a n g l e turn. Click the mouse.

A whole turn. Click the mouse to see a whole turn. Click the mouse.

A half turn. Click the mouse to see a half turn. Click the mouse.

A quarter turn. Click the mouse to see a quarter turn. Click the mouse.

A quarter turn is a right angle. Click the mouse to see a quarter turn right angle. Click the mouse.

A half turn is a straight angle. Click the mouse to see a half turn straight angle. Click the mouse.

A three quarter turn is one size of reflex angle. Click the mouse to see a three quarter turn reflex angle. Click the mouse.

An acute angle is less than a quarter turn. For example, a one sixth turn is an acute angle. Click the mouse to see a one sixth turn acute angle. Click the mouse.

An obtuse angle is more than a quarter turn, but less than a half turn. For example, a one third turn is an obtuse angle. Click the mouse to see a one third turn obtuse angle. Click the mouse.

A reflex angle is more than a half turn. For example, a two thirds turn is a reflex angle. Click the mouse to see a two thirds turn reflex angle. Click the mouse.

Angles 2 – Measuring angles Now watch Angles 2 – Measuring angles