# Rotational symmetry

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Category: Education

## Presentation Transcript

### Rotational Symmetry:

Rotational Symmetry

### Rotational Symmetry:

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:

Rotational Symmetry Does this rectangle have rotational symmetry? It looks exactly the same twice in a full turn. It has got rotational symmetry order 2 . Yes, it fits! No, it doesn’t fit No, it doesn’t fit Yes, it fits! Click to rotate the rectangle.

### Rotational Symmetry in the Alphabet:

Rotational Symmetry in the Alphabet Which letters have got rotational symmetry? A B C D E F G H I J K L M N O P Q R S T U V W X Y Z Click to see the answers. Order 2 Order 2 Order 2 Order 2 Order 2 Order 2 Order 2

### Rotational Symmetry all around us:

Rotational Symmetry all around us Which road signs have got rotational symmetry? Click to see the answers.

### Rotational Symmetry all around us:

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:

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:

Rotational Symmetry all around us Click to see more road signs with rotational symmetry. Order 3 Order 2

### Rotational Symmetry with Pentominoes:

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:

Rotational Symmetry with Pentominoes Which Pentominoes have got rotational symmetry? Sort them according to their rotational symmetry.

### Rotational Symmetry with Pentominoes:

Rotational Symmetry with Pentominoes Rotational Symmetry Order 2 Rotational Symmetry Order 4 Click to start sorting

### Rotational Symmetry with 7-Pin Polygons:

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:

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 with 7-Pin Polygons Rotational Symmetry Order 2 Rotational Symmetry Order 6 Rotational Symmetry Order 3 Click to start sorting

### Now you know all about rotational symmetry! END OF PRESENTATION:

Now you know all about rotational symmetry! END OF PRESENTATION

### Pentominoes:

Pentominoes A pentomino is made out of five squares that are connected along at least one edge. These are NOT pentominoes. Here is an example of a pentomino. How many different pentominoes can you find? Click here to return to line symmetry.

### 7-Pin Polygons:

7-Pin Polygons Here is an arrangement of 7 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. A 7-pin polygon is a closed shape with straight sides with corners on the pins.

### END OF PRESENTATION:

END OF PRESENTATION