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## Rotational Symmetry

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**Rotational Symmetry**• If, when you rotate a shape, it looks exactly the same as it did in its original position, then we say that the shape has got rotational symmetry. • This square has got rotational symmetry. • It looks exactly the same four times in a full turn. • It has got rotational symmetry order 4.**Rotational Symmetry**• Does this rectangle have rotational symmetry? No, it doesn’t fit No, it doesn’t fit Yes, it fits! Yes, it fits! Click to rotate the rectangle. • It looks exactly the same twice in a full turn. • It has got rotational symmetry order 2.**Rotational Symmetry in the Alphabet**Which letters have got rotational symmetry? Click to see the answers. A B C D E F G H I J Order 2 K L Order 2 M N Order 2 O P Q Order 2 R S T U V W X Y Z Order 2 Order 2 Order 2**Rotational Symmetry all around us**Which road signs have got rotational symmetry? Click to see the answers.**Rotational Symmetry all around us**Click to see the road signs with rotational symmetry. Order 3 Order 2 Order 2**Rotational Symmetry all around us**Click to see more road signs with rotational symmetry. Order 4 Order 3 Order 2**Rotational Symmetry all around us**Click to see more road signs with rotational symmetry. Order 3 Order 2**Rotational Symmetry with Pentominoes**• If you don’t know what a pentomino is, then click here. • If you have done the pentominoes activity before, then you will know what a pentomino is and how many different pentominoes there are. • Here they are ...**Rotational Symmetry with Pentominoes**Which Pentominoes have got rotational symmetry? Sort them according to their rotational symmetry.**Rotational Symmetry with Pentominoes**Rotational Symmetry Order 2 Rotational Symmetry Order 4 Click to start sorting**Rotational Symmetry with 7-Pin Polygons**• If you don’t know what a 7-pin polygon is, then click here. • If you have done the 7-pin polygons activity before, then you will know what a 7-pin polygon is and how many different ones there are. • Here they are ...**Rotational Symmetry with 7-Pin Polygons**Which 7-Pin Polygons have got rotational symmetry? Sort them according to their rotational symmetry.**Rotational Symmetry with 7-Pin Polygons**Rotational Symmetry Order 2 Rotational Symmetry Order 3 Rotational Symmetry Order 6 Click to start sorting**Now you know all about rotational symmetry!END OF**PRESENTATION**Pentominoes**A pentomino is made out of five squares that are connected along at least one edge. Here is an example of a pentomino. These are NOT pentominoes. How many different pentominoes can you find? Click here to return to line symmetry.**7-Pin Polygons**Here is an arrangement of 7 pins. A 7-pin polygon is a closed shape with straight sides with corners on the pins. Here are some examples of 7-pin polygons. How many different 7-pin polygons can you find? Click here to return to line symmetry.