Year 5

Year 5

# 2D and 3D shape: To identify regular and irregular polygons by reasoning about equal sides and angles

## Switch to our new maths teaching resources

Slide decks, worksheets, quizzes and lesson planning guidance designed for your classroom.

## Lesson details

### Key learning points

1. In this lesson, we will investigate the properties of similarities and differences between regular and irregular polygons and identify the number of sides and angles that make up different shapes.

### Licence

This content is made available by Oak National Academy Limited and its partners and licensed under Oak’s terms & conditions (Collection 1), except where otherwise stated.

## Video

Share with pupils

## Worksheet

Share with pupils

## Starter quiz

Share with pupils

### 5 Questions

Q1.
How many lines of symmetry does a rectangle have?
1
3
Q2.
How many lines of symmetry does an equilateral triangle have?
1
2
Q3.
How many lines of symmetry does a regular hexagon have?
4
5
Q4.
How many lines of symmetry does this shape have?
2
3
Q5.
How many lines of symmetry does this shape have?
2
3

## Exit quiz

Share with pupils

### 4 Questions

Q1.
There is a right angle at every vertex.
E and D
G and C
Q2.
It has only one pair of parallel lines.
C and F
D and J