# Describe, name and sort polygons, including pentagons, hexagons and octagons

I can recognise and describe polygons including pentagons, hexagons and octagons.

# Describe, name and sort polygons, including pentagons, hexagons and octagons

I can recognise and describe polygons including pentagons, hexagons and octagons.

## Lesson details

### Key learning points

- The names of polygons are linked to the number of sides they have.
- A pentagon is any polygon with 5 sides.
- A hexagon is any polygon with 6 sides.
- An octagon is any polygon with 8 sides.

### Common misconception

Children may say that they do not know the name of a polygon when it is an irregular and it does not look familiar to them.

Show children a wide range of pentagons and count the sides and vertices of each shape. Agree that these shapes are all pentagons even though they all look different. Repeat with hexagons and octagons.

### Keywords

Pentagon - A polygon with 5 sides and 5 vertices.

Hexagon - A polygon with 6 sides and 6 vertices.

Octagon - A polygon with 8 sides and 8 vertices.

### Licence

This content is © Oak National Academy Limited (2024), licensed on Open Government Licence version 3.0 except where otherwise stated. See Oak's terms & conditions (Collection 2).

## Video

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## Starter quiz

### 6 Questions

three

four

not triangles

triangles

## Exit quiz

### 6 Questions

has 5 vertices

has 8 sides

is a quadrilateral

is a triangle

octagon

pentagon

hexagon

a polygon with 8 sides and 8 vertices.

a polygon with 6 sides and 6 vertices.

a polygon with 5 sides and 5 vertices.