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

Maths

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.

Angles: compare, name, estimate and measure angles

Which of the angles fit to complete a full turn?

What is the missing value in this bar model? {{ }}°

Complete the sentence. {{ }}° is needed to complete the angles about a point.

There are six angles of equal size about a point. Each angle has a value of {{ }}°

What is the size of angle a? Look for equal angles. {{ }}°

A polygon with five sides and five vertices.

A polygon with six sides and six vertices.

This shape has 4 sides of equal length. What is the name of this shape?

This is a trapezium. Look carefully at the vertices and the angles inside the shape. Complete the sentence. There are {{ }} obtuse angles in the trapezium.

The code turns a character by the number of degrees shown. Andeep wants the character to turn a full turn. What does he need to add to complete a full turn? {{ }}°

Sofia turns a full turn in two moves. The first move is 197°. The second move is {{ }}°.

This lesson will soon be taken down.

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

Lesson outcome