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Recognise and Describe Transformations

In this worksheet, students will recognise and describe mixed transformations.

'Recognise and Describe Transformations' worksheet

Key stage:  KS 3

Year:  Year 8 Maths worksheets

Curriculum topic:   Geometry and Measures

Curriculum subtopic:   Identify and Describe Translations, Rotations and Reflections

Difficulty level:  

Worksheet Overview

In this activity, we will recognise and describe different transformations!

 

The three transformations we will look at are reflections, rotations and translations.

 

Let's look at each one - you can make notes here to help you describe them!

 

Reflections

Easy to recognise because the shape will be facing the opposite way (flipped).

To describe it we have to say what the equation of the mirror line is.

Look at this one!

 

reflections

 

We would say:

It is a reflection in the line y = 1

 

Rotations

A bit more tricky!

The shape will have been turned!

 

To describe it we need:

The centre of rotation: this is the point from which we rotate the shape.

-  The direction: clockwise or anticlockwise.

-  The number of degrees it is rotated: the most common ones are 90o, 180o and 270o

 

Look at this one!

 

rotation of shapes

 

We would say:

It is a rotation 180° around the point (3, 2)

Note when the rotation is 180° we do not need to say clockwise or anticlockwise as they both get to the same place.

 

Translation

Easy to recognise because the shape will be facing the same way!

To describe it we have to say the movement in a vector.

The x movement (across) on top.

The y movement (up and down) on the bottom.

 

Look at this one!

 

a translation

 

We would say:

It is a translation by the vector:

Note this means 4 moves to the right and 2 moves up. 

If the move was left we would write -4 and if the move was down we would write -2.         

 

Let's look at some questions to see if we can recognise the different transformations and if we can describe them.

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