A degree is a unit of measure for angles.

To estimate is to find a value that is close enough to the right answer, usually with some thought or calculation involved.

A rotation is a circular movement around a fixed point.

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

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

Think about a bicycle's wheels. How could you describe the movement they make?

The time is 2 o’clock. When Lucas next looks, it is 4 o’clock. How has the hour hand moved?

The time is 2 o’clock. When Lucas next looks, it is 4 o’clock. How has the minute hand moved?

Look at the hands on this clock face and the arrow. The angle formed is __________.

The swing rotates and the angle has been drawn. What is the best estimate for the angle?

Which of the angles shown is the smallest?

Look at the hands on this clock face and the arrow. How does the angle created by the hands compare to a right angle?

Look at the hands on this clock face. The hour hand began pointing at 12 and then rotated to point at 9   How can you describe the turn?

The trapezium has two right angles and two acute angles. 

The trapezium has two acute angles and two obtuse angles.  

This is a trapezium. Look carefully at the vertices and the angles inside the shape. Which statement is correct?

Which of these is the best estimate for the angle shown?

Starter Quiz