Grade 4

What is an angle?

angle

The amount of turn between two lines that meet at a point.

For example

Push a gate halfway open and it makes an angle with the fence.

In Grade 4

Children sort corners into square, smaller than square and wider than square before they measure a single angle in degrees.

Watch out for

Children often think longer arms make a bigger angle. The angle is the amount of turn, so drawing the two lines longer changes nothing at all.

Say it at home

Point at corners around the house and ask whether each one is a square corner, a narrower one or a wider one.

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