Use the unit of degrees as a standard unit to measure angles
Lesson details
Learning outcome
I can use the unit of degrees as a standard unit to measure angles.
Key learning points
- Angles are measured in degrees
- Degrees measure rotation
Keywords
Angle - An angle is a measure of turn. It shows how far something has rotated.
Degree - A degree is a unit of measure for angles.
Arc - An arc is part of any curve. They can be used to show the angle between two lines.
Common misconception
Pupils think that the larger the size of the arc between the two lines, the larger the angle must be.
Ensure pupils compare the same angle where the arc has been drawn on either closer to the vertex or further away from the vertex. Generalise that the position of the arc doesn't matter, though it is convention to draw it closer to the vertex.
Teacher tip
Allow pupils to develop a sense of angle size by providing them with different sized angle tools to estimate and measure angles in their own contexts.
Licence
Lesson video
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Prior knowledge starter quiz
6 Questions
Q1.Look at the image. This shape has right angle(s).
Q2.This shape has one pair of parallel sides. True or false?
Q3.Complete the sentence. A rhombus has vertices.
Q4.Look at the hands on this clock face and the arrow. The angle formed is __________.
Q5.Look at the hands on this clock face and the arrow. The angle formed is __________.
Q6.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.
Assessment exit quiz
6 Questions
Q1.How many degrees are equal to one right angle? °
Q2.A full turn is equal to four right angles which is ___.
Q3.The angle shown is 50° which means it is an angle.
Q4.The angle shown is 140° which means it is an angle.
Q5.What is the measurement of the angle shown here? °
Q6.Which image shows an angle of approximately 30°?
To help you plan your 5 maths lesson on: Use the unit of degrees as a standard unit to measure angles, download all teaching resources for free and adapt to suit your pupils' needs...
To help you plan your 5 maths lesson on: Use the unit of degrees as a standard unit to measure angles, download all teaching resources for free and adapt to suit your pupils' needs.
The starter quiz will activate and check your pupils' prior knowledge, with versions available both with and without answers in PDF format.
We use learning cycles to break down learning into key concepts or ideas linked to the learning outcome. Each learning cycle features explanations with checks for understanding and practice tasks with feedback. All of this is found in our slide decks, ready for you to download and edit. The practice tasks are also available as printable worksheets and some lessons have additional materials with extra material you might need for teaching the lesson.
The assessment exit quiz will test your pupils' understanding of the key learning points.
Our video is a tool for planning, showing how other teachers might teach the lesson, offering helpful tips, modelled explanations and inspiration for your own delivery in the classroom. Plus, you can set it as homework or revision for pupils and keep their learning on track by sharing an online pupil version of this lesson.
Explore more key stage 2 maths lessons from the Angles: compare, name, estimate and measure angles unit, dive into the full primary maths curriculum, or learn more about lesson planning.