Checking and securing understanding of angle notation and drawing/measuring angles

I can draw and measure any angle and am confident with various angle notations.

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Year 10

Foundation

Checking and securing understanding of angle notation and drawing/measuring angles

I can draw and measure any angle and am confident with various angle notations.

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Share activities with pupils

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Lesson details

Key learning points

A protractor is used to draw angles.
A protractor is used to measure the size of angles.
A protractor measures angles in degrees.

Keywords

Angle - An angle is a measure of turn. It is often displayed as the rotation between two line segments.
Reflex angle - An angle that is greater than a straight line (i.e. greater than 180°) is a reflex angle.

Common misconception

Pupils read from the incorrect values on the protractor.

Encourage pupils to consider the type of angle they are measuring. If it is an acute angle, will it really measure 122°?

Pupils can assess each other's work during Task A. By having pupils work in pairs/small groups, they can all measure an angle and then compare their answers to check accuracy.

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).