**Right Angles**

WWLT: -

- Clock angles and turns

- How a protractor works and using a protractor

- Identifying if an angle is bigger or smaller than a right angle

- Constructing angles

- Classifying and estimating angles

WILF:

- I think Clearly

- I am Responsible

- Clock angles and turns

- How a protractor works and using a protractor

- Identifying if an angle is bigger or smaller than a right angle

- Constructing angles

- Classifying and estimating angles

WILF:

- I think Clearly

- I am Responsible

**Clock angles and turns**

This clock has changed from 12:00 to 12:15. This is 1/4 of a turn, 90

What is the turn of this time:

**°**which is a right angle.What is the turn of this time:

Using a clock, calculate the turn of the following times. As extension, can you calculate the angle?

1) 2:00 - 2:30

2) 6:15 - 6:30

3) 1:45 - 2:30

4) Can you make your own?

1) 2:00 - 2:30

2) 6:15 - 6:30

3) 1:45 - 2:30

4) Can you make your own?

**How a protractor works and using a protractor**

What is the angle of these arcs?

Work on the back page of your Angles booklet to show your understanding of measuring angles.

**identifying if an angle is bigger or **

smaller than a right angle

smaller than a right angle

Classify these following angles:

**Constructing Angles**

Practise creating the following angles:

a) 35

b) 90

c) 160

a) 35

**°**b) 90

**°**c) 160

**°**

d) an angle less than 90**°****e) an angle greater than 90****°****f) an angle of your choice, make sure you classify it.****Classifying angles and estimating**

Consider the following things when estimating angles:

1. Is it more or less than 90

2. Is it closer to 90

1. Is it more or less than 90

**°**(a perfect corner?)2. Is it closer to 90

**°**, the end of the protractor or in the middle?