New
New
Year 7

# Introduction to translation

I can understand the nature of a translation and appreciate what changes and what is invariant.

New
New
Year 7

# Introduction to translation

I can understand the nature of a translation and appreciate what changes and what is invariant.

## Lesson details

### Key learning points

1. The length of the lines do not change when translated.
2. The angles inside an object do not change when translated.
3. When an object is translated, its image is congruent.
4. The object and its image have the same orientation.

### Common misconception

Students may confuse the term transformation for translation.

Translation is one type of transformation.

### Keywords

• Translation - Translation is a transformation in which every point of a shape moves the same distance in the same direction.

Copies of physical shapes could be helpful to help students see that the orientation doesn't change, nor does the shape become mirrored in a translation.
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.
A transformation is a process that may change the , orientation or position of a shape.
Q2.
This L shape is twisted, which of these could be the image?
Correct Answer: An image in a quiz
Q3.
When a vertex is labelled $$B\prime$$, it means the of vertex B.
Q4.
Congruent shapes need to have the same orientation, true or false?
True: otherwise they will not be able to stack up on top of each other.
Correct answer: False: if the orientation is different they can be manipulated to stack.
Q5.
Regardless of whether an object is flipped, twisted or moved, the lengths and angles are ?
Q6.
Which figure does this description match? The object has moved up without twisting or flipping.
Correct Answer: An image in a quiz

## Exit quiz

### 6 Questions

Q1.
Translation is a in which every point of a shape moves the same distance in the same direction.
Q2.
Which of these images show a translation?
Correct Answer: An image in a quiz
Correct Answer: An image in a quiz
Q3.
Match the shapes to their translated image.

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C

F