A right angle is a quarter of a full turn. It can be known as a ‘square corner’.

Review understanding and identification of right angles

Maths

Review understanding of angles as a measure of turn

Use the terms acute, obtuse and reflex when comparing angles to a right angle

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

Describe static angles using the standard unit of degrees when compared to a right angle

Describe rotations using the standard unit of degrees when compared to a right angle

Estimate acute and obtuse angles using the standard unit of degrees

Know that the angles in a full turn sum to 360 degrees and use this to solve problems

Know that the angles at a point sum to 360 degrees and use this to solve problems

Angles in quadrilaterals

Know that the angles on a straight line sum to 180 degrees and use this to solve problems

Angles in triangles

Measure the size of angles accurately using a protractor

Draw angles accurately using a protractor

Reasoning about angles in polygons

In this unit pupils will compare the size of angles where there is a clear visual difference and use the terms acute, obtuse and reflex when describing the size of angles or amount of rotation with relation to right angles using a unit called degrees. In the future unit pupils will use knowledge of shape properties to draw, sketch and identify shapes.

In the prior unit pupils completed and composed symmetrical shapes from two congruent shapes and investigate lines of symmetry in 2D shapes. In this unit pupils will compare the size of angles where there is a clear visual difference and use the terms acute, obtuse and reflex when describing the size of angles or amount of rotation with relation to right angles using a unit called degrees.

In this unit pupils will compare the size of angles where there is a clear visual difference and use the terms acute, obtuse and reflex when describing the size of angles or amount of rotation with relation to right angles using a unit called degrees.

Angles: compare, name, estimate and measure angles

True or false? The shape Jacob made on the pinboard contains exactly two right angles.

Look carefully at the shape Jacob has made on the pinboard. The shape contains {{ }} right angle(s).

What kind of turn is needed here? The distance from where a __________turn starts to where it finishes is a right angle.

Look carefully at the shape Jacob has made. The shape contains {{ }} right angle(s).

Which of these shapes contains one or more right angles?

Which of these shapes have one or more pairs of perpendicular sides?

Complete the sentence. A rectangle has {{ }} vertices.

All shapes with 4 sides and 4 vertices are classified as __________.

Review understanding and identification of right angles

Lesson outcome