# Describing a translation

I can understand the minimum information required to describe a translation.

# Describing a translation

I can understand the minimum information required to describe a translation.

## Lesson details

### Key learning points

- A translation can be described in terms of left/right and up/down.
- To be more precise, it is useful to have a scale to provide units of measurement.
- It is important to give both direction and distance.
- Direction and distance can be combined through use of displacement.

### Common misconception

Students may count between the closest two vertices rather than corresponding points.

Remind frequently that it needs to be between corresponding vertices, labelling may help for this.

### Keywords

Displacement - Displacement is the distance from the starting point when measured in a straight line.

Vector - A vector can be used to describe a translation.

### 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).

## Video

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## Starter quiz

### 6 Questions

## Exit quiz

### 6 Questions

The top number, 2, is the -

horizontal displacement

The bottom number, 1, is the -

vertical displacement

$${-4 \choose 1}$$ -

left by 4 units and up by 1 unit

$${4 \choose 1}$$ -

right by 4 units and up by 1 unit

$${-4 \choose -1}$$ -

left by 4 units and down by 1 unit

$${4 \choose -1}$$ -

right by 4 units and down by 1 unit