Angles Topic Guide for Teachers

Whenever two lines meet, they form an angle. It is very important to be able to measure angles accurately, for example, a builder has to build walls at the correct angle or the building might fall down!

Astronomers use angles to work out how far away planets and stars are, and when we play games, we use angles to work out how to hit or kick a ball in the right direction!

Teach your children about angles using our handy topic guide!



Teaching Ideas

Give children a sheet of angles to measure accurately.
Identify right angles on these sheets.
Are these sets of lines parallel, perpendicular or neither?
Measure angles around the room, and record them on this sheet.
Challenge your children to find the turns and angles in these Olympic sports.
Ask the children to write their names in capital letters and measure the angles between the straight lines.
Put masking tape on your tables and ask the children to measure the angles.

i

Resources

Download our Angles Pack, full of resources and reference materials.

Check out our display materials, including reference posters
Demonstrate how to measure angles using a protractor with this resource, and how to use them to draw an angle on this page.
Visit the Geometry Shed and scroll down for some fun angles activities.
Visit the BBC Bitesize Lines and Angles activities.

Angles Knowledge Organiser

Members of Teaching Packs can download a comprehensive knowledge organiser to accompany this topic. It includes key information that your children can use for reference.

Not a member yet? Join us today!



Angles Facts

The first person to write about angles was Euclid, a Greek mathematician who lived around the year 300BCE, in Alexandria.
Angles are measured in degrees. The symbol for degrees is º. A straight line equals 180º.
Right angles equal exactly 90º, angles between 90º and 180º are known as obtuse, while angles that are less than 90º are acute.
An angle that is larger than 180º but less than 360º is known as a reflex angle.
A full circle equals 360º, which is why a full turn on a skateboard is known as a 360.

