Use the unit of degrees as a standard unit to measure angles

I can use the unit of degrees as a standard unit to measure angles.

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Year 5

Use the unit of degrees as a standard unit to measure angles

I can use the unit of degrees as a standard unit to measure angles.

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Share activities with pupils

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Lesson details

Key learning points

Angles are measured in degrees
Degrees measure rotation

Keywords

Angle - An angle is a measure of turn. It shows how far something has rotated.
Degree - A degree is a unit of measure for angles.
Arc - An arc is part of any curve. They can be used to show the angle between two lines.

Common misconception

Pupils think that the larger the size of the arc between the two lines, the larger the angle must be.

Ensure pupils compare the same angle where the arc has been drawn on either closer to the vertex or further away from the vertex. Generalise that the position of the arc doesn't matter, though it is convention to draw it closer to the vertex.

Allow pupils to develop a sense of angle size by providing them with different sized angle tools to estimate and measure angles in their own contexts.

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).