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