An angle is a measure of turn. It shows how far something has rotated. It is often displayed as the rotation between two line segments.

Rotate means to turn around a fixed point. It is an action or movement.

Clockwise is the direction that the hands of an analogue clock travel.

Anticlockwise is the opposite direction to which the hands of an analogue clock travel.

Review understanding of angles as a measure of turn

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

Complete the sentence. The hour hand on a clock face rotates __________.

Complete the sentence. An angle is a measure of __________.

Look carefully at the image of the wheel and the arrow. Complete the sentence. This shows a __________ turn.

Which of the angles shown is the largest?

The minute hand shows 4 o’clock. The minute hand moves to show half past 4. What kind of turn has the minute hand made?

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

Which of the angles shown is a right angle?

Which of these shapes contains one or more right angles?

Look at the image. This shape has {{ }} right angles.

True or false? This shape has one pair of parallel sides.

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