order 4 Eg1. A square It fits on itself 4 times

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Presentation transcript:

order 4 Eg1. A square It fits on itself 4 times back order 4 We say that a square has…

order 1 Eg2. A heart shape It fits on itself only once back order 1 We say that a heart has…

Objectives: To be able to recognise Remember your MARGIN !!! DATE Objectives: To be able to recognise the order of rotational symmetry of any shape

Rotational Symmetry The order of rotational symmetry of a shape is determined by how many times the shape fits onto itself during a 360° turn. (Example 1) Every shape has an order of rotational symmetry, even if it is order 1. (Example 2) Have a look at the following shapes…

What is the order of rotational symmetry? answer

What is the order of rotational symmetry? answer

What is the order of rotational symmetry? answer

What is the order of rotational symmetry? answer

4 3 2 A 1 -4 -3 -2 -1 0 1 2 3 4 -1 -2 -3 -4