# Transformed objects

I can identify whether a shape has been transformed or not.

# Transformed objects

I can identify whether a shape has been transformed or not.

## Lesson details

### Key learning points

- There are clues that can be looked for to determine if a shape has been transformed.
- If the size has changed, one shape may be an enlargement of the other.
- If the orientation has changed, one shape may be a rotation of the other.
- If the shapes are mirrored, one shape may be a reflection of the other.
- If the shapes look identical but are in different places, one may be a translation of the other.

### Common misconception

Students may confuse reflections and rotations depending on the object.

A reflection is the only transformation that changes the sense of the object, so check that first.

### Keywords

Transformation - A transformation is a process that may change the size, orientation or position of a shape.

Congruent - If one shape can fit exactly on top of another using rotation, reflection or translation, then the shapes are congruent.

Invariant - A property of a shape is invariant if that property has not changed after the shape is transformed.

### 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

A rotation -

by $${270^{\circ}}$$ clockwise about (3,4).

A reflection -

in the x-axis.

A translation -

by $${-4 \choose 2}$$

An enlargement -

by scale factor 3 from (0, 0)