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Angles 1 – What is an angle?

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Presentation on theme: "Angles 1 – What is an angle?"— Presentation transcript:

1 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.

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

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

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

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

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

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

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

9 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.

10 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.

11 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.

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


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