A quarter of a full turn, a 'square corner'.

Identify and describe right angles

Maths

In this unit pupils will rotate two lines around a fixed point to make different sized angles. They will identify vertices. In the future unit pupils will investigate ways to compose and decompose polygons. They will investigate quadrilaterals with and without parallel and perpendicular sides.

In the prior unit pupils ordered and arranged combinations of objects in patterns and sequences. They consolidated understanding of whole, half, quarter and three-quarter turns, in terms of right angles, using mathematical vocabulary to describe position, direction and movement. In this unit pupils will rotate 2 lines around a fixed point to make different sized angles. They will identify vertices

Right angles

The mathematical name for a 'square corner' is a {{ }} angle.

How many right angles does this shape have?

A right angle is the same as a {{ }} turn.

Which of these shapes has at least one right angle?

Which of these capital letters do not have at least one right angle?

the direction that hands travel on an analogue clock

the opposite direction to which hands travel on an analogue clock

The hands on a clock rotate in a {{ }} direction.

True or false. Larger angles have longer lines and smaller angles have shorter lines.

An angle is the amount of {{ }} around a fixed point.

Order the angles from largest to smallest.

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