Recognise and Describe Rotations

In this activity, we will look at recognising and describing rotations.

 

When we rotate (turn) a shape, there are several important points we need to know or find out!

 

1) Where is the centre of rotation?

This is the point from which we rotate the shape.

 

2) Which direction?

Clockwise or anticlockwise?

 

3) How many degrees is the rotation?

The most common ones are 90^o, 180^o and 270^o

 

Let's have a look at a typical question!

 

Example

Shape A has been rotated.

Write down the centre of rotation, the direction of rotation and the number of degrees.

 

 

Answer

We can see the centre of rotation is shown below:

 

 

The point (0, 6)

 

Next, we can see the shape has turned 90^o

 

 

In a clockwise direction!

 

In short:

A has been rotated 90^o clockwise around the point (0, 6)

 

Let's try some questions now.