The Lesson
A translation moves a shape.
A translation is a slide of a shape: without rotating, reflecting or resizing it.
A translation is a type of
transformation.
A Real Example of a Translation
It is easier to understand translation with an example.
The diagram below shows a translation of a shape. The shape before the translation (called the
object) is in light blue. The shape after the translation (called the
image) is in dark blue:
In a translation,

a shape can move up

a shape can move down

a shape can move left

a shape can move right
In our example, the shape has moved
2 squares down and
2 squares right
Each point on the shape moves the
same direction and the
same distance.
Choose any point on the object. It has been moved 2 squares down and 2 squares right in the image.
What a Translation Isn't
A translation is a pure slide of a shape.
A translated shape is not rotated or resized.