Angles in quadrilaterals

I can explain why the angles in a quadrilateral sum to 360° and use this to find missing angles.

Download all resources

Share activities with pupils

New

Year 5

Angles in quadrilaterals

I can explain why the angles in a quadrilateral sum to 360° and use this to find missing angles.

Download all resources

Share activities with pupils

These resources will be removed by end of Summer Term 2025.

Switch to our new teaching resources now - designed by teachers and leading subject experts, and tested in classrooms.

View new resources

Slide deck

Download slide deck

Skip slide deck

Lesson details

Key learning points

A quadrilateral is a shape with four sides and four vertices.
Interior angles in a quadrilateral are composed of two triangles.
Interior angles in a quadrilateral are equal to 360 degrees.

Keywords

Quadrilateral - A quadrilateral is a polygon with four straight sides and four vertices.
Point - A point is an exact location. It has no size, only position.
Sum - The sum is the result of adding two or more numbers.

Common misconception

Pupils may not have fluency in properties of 2D shapes and may therefore not notice properties of angles within quadrilaterals such as trapeziums.

Pre-teaching or providing a scaffold containing shape names and properties will allow pupils to see the properties and support them in making connections.

Encourage pupils to notice angles that look the same in size. You may like to have the angles cut out and available to manipulate to help visualise this, particularly where folding may help recognise angles that are the same size.

Teacher tip

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).