A point is an exact location. It has no size, only position.

Join four right angles at a point using different right-angled polygons

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

How many of each angle does this shape have? Match the number to the type of angle.

How many right angles are equal to one full turn?

Look at this shape. How many right angles does it have?

Laura joins four of the same shape together around a point. Which of these show what would happen if Laura joined the shapes using only right angles? 

Aisha joins four squares together around the point. What shape will the four squares make? 

Aisha joins four of these triangles together using right angles around the point. What shape will the four triangles make?

Which of these images shows a right angle?

Which of these shapes has at least one right angle?

Which of these shapes have angles larger than a right angle?

Complete this sentence. All rectangles have {{ }} right angles.

How many right angles does this shape have?

All quadrilaterals have at least one right angle. 

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Join four right angles at a point using different right-angled polygons

Lesson outcome