1. Rotation On a coordinate grid

2. For a Rotation, you need An angle or fraction of a turn –Eg 90° or a Quarter Turn –Eg 180° or a Half Turn A direction –Clockwise –Anticlockwise A Centre of Rotation –A point around which the Object rotates

3. y x 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 – 7 – 6 – 5 – 4 – 3 – 2 – 1 -1 -2-2 -3-3 -4-4 -5-5 -6-6 A Rotation of 90° Anticlockwise about (0,0) x x x x x

4. y x 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 – 7 – 6 – 5 – 4 – 3 – 2 – 1 -1 -2-2 -3-3 -4-4 -5-5 -6-6 A Rotation of 180° about (0,0) x x x x x x x x