Transforming - four types
There are four ways to transform an object in mathematics;
- Re-sizing - Enlargement, contraction
- Reflection - Mirrored
- Rotation - Around a point
- Translating - Sliding
To remember these four types think of a

Transformer (Transforming) with enlarged eyes after a night out.

So put on reflective mirrored glasses.

But put them on upside down (rotate). Even when they were the correct way up they still slide off (translate).
Examples
Re-sizing: Enlargement

The square has been enlarged.
Reflection - Mirrored

The square has been reflected.
Rotation

The square has been rotated.
Translating
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The square has been translated (slid across).