New
New
Year 3

# Identify and describe right angles

I can identify a square corner as a right angle and can find and identify right angles in the environment.

New
New
Year 3

# Identify and describe right angles

I can identify a square corner as a right angle and can find and identify right angles in the environment.

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## Lesson details

### Key learning points

1. A right angle is a square corner.
2. A right angle is a quarter turn.
3. There are right angles in buildings and the environment.

### Common misconception

Pupils may think there is only ever one right angle in an object or shape.

Provide opportunities for pupils to explore objects and shapes that have more than one right angle and show that these are not always rectangular e.g. some trapeziums can have more than one right angle.

### Keywords

• Right angle - A quarter of a full turn, a 'square corner'.

Take time to make a right angle checker with pupils, using split pins and paper or folding paper to make a right angle. This will support pupils in exploring their environment to identify right angles.
Teacher tip

### Licence

This content is © Oak National Academy Limited (2024), licensed on Open Government Licence version 3.0 except where otherwise stated. See Oak's terms & conditions (Collection 2).

## Starter quiz

### 6 Questions

Q1.
Match the keywords to the definition.
Correct Answer:An angle is,a measure of turn

a measure of turn

Correct Answer:Rotate means ,to turn around a fixed point

to turn around a fixed point

Correct Answer:Clockwise is ,the direction that hands travel on an analogue clock

the direction that hands travel on an analogue clock

Correct Answer:Anticlockwise is ,the opposite direction to which hands travel on an analogue clock

the opposite direction to which hands travel on an analogue clock

Q2.
The hands on a clock rotate in a direction.
Q3.
Which arrows show a clockwise turn?
c
Q4.
True or false. Larger angles have longer lines and smaller angles have shorter lines.
True
Q5.
An angle is the amount of around a fixed point.
Q6.
Order the angles from largest to smallest.
1 - b
2 - c
3 - a

## Exit quiz

### 6 Questions

Q1.
The mathematical name for a 'square corner' is a angle.
Q2.
How many right angles does this shape have?
0
2
Q3.
Which of the images shows a right angle?
a
b
Q4.
A right angle is the same as a turn.
whole