Rotating Shapes

What 3 things do you need to say to describe a rotation?

1.Where the centre of the rotation is?

2.How much it has turned through(1/4, or 1/2 turn or an angle)

3.Weather the rotation has turned anticlockwise or clockwise.

Explain what centre of rotation means

The centre of rotation is a little dot or cross on a grid which is where the shape of the rotation should turn on the line where the dot is.

Now use these 3 things to describe the rotation on Page 1 of the myimaths lesson (i.e. describe the rotation of the triangle)

The centre of this triangle is at 1,1 on the grid. It has turned 90º or 1/4 and has turned clockwise.