Identify and describe right angles
Lesson details
Learning outcome
I can identify a square corner as a right angle and can find and identify right angles in the environment.
Key learning points
- A right angle is a square corner.
- A right angle is a quarter turn.
- There are right angles in buildings and the environment.
Keywords
Right angle - A quarter of a full turn, a 'square corner'.
Common misconception
Pupils may think there is only ever one right angle in an object or shape.
Provide opportunities for pupils to explore objects and shapes that have more than one right angle and show that these are not always rectangular e.g. some trapeziums can have more than one right angle.
Teacher tip
Take time to make a right angle checker with pupils, using split pins and paper or folding paper to make a right angle. This will support pupils in exploring their environment to identify right angles.
Licence
Lesson video
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Prior knowledge starter quiz
6 Questions
Q1.Match the keywords to the definition.
a measure of turn
to turn around a fixed point
the direction that hands travel on an analogue clock
the opposite direction to which hands travel on an analogue clock
Q2.The hands on a clock rotate in a direction.
Q3.Which arrows show a clockwise turn?
Q4.True or false. Larger angles have longer lines and smaller angles have shorter lines.
Q5.An angle is the amount of around a fixed point.
Q6.Order the angles from largest to smallest.
Assessment exit quiz
6 Questions
Q1.The mathematical name for a 'square corner' is a angle.
Q2.How many right angles does this shape have?
Q3.Which of the images shows a right angle?
Q4.A right angle is the same as a turn.
Q5.Which of these shapes has at least one right angle?
Q6.Which of these capital letters do not have at least one right angle?
To help you plan your 3 maths lesson on: Identify and describe right angles, download all teaching resources for free and adapt to suit your pupils' needs...
To help you plan your 3 maths lesson on: Identify and describe right 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 Right angles unit, dive into the full primary maths curriculum, or learn more about lesson planning.