Make shapes by joining two polygons in different ways
I can make compound shapes by joining two polygons in different ways.
Make shapes by joining two polygons in different ways
I can make compound shapes by joining two polygons in different ways.
These resources will be removed by end of Summer Term 2025.
Lesson details
Key learning points
- The same parts can create a different whole.
- Lines are parallel because they are always the same distance apart.
- A quadrilateral with two pairs of parallel sides is called a parallelogram.
Keywords
Polygon - A 2D shape made up of three or more straight lines.
Quadrilateral - Polygons with four straight sides and four vertices.
Common misconception
Pupils do not recognise the new shape and only identify the smaller shapes it is composed of.
Using plastic shapes to compose a new shape and drawing around the shape can support pupils to see the properties of the new shape. Drawing around removes the joined sides inside the new polygon.
To help you plan your year 3 maths lesson on: Make shapes by joining two polygons in different ways, download all teaching resources for free and adapt to suit your pupils' needs...
To help you plan your year 3 maths lesson on: Make shapes by joining two polygons in different ways, 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 Parallel and perpendicular sides in polygons (and perimeter) unit, dive into the full secondary maths curriculum, or learn more about lesson planning.
Licence
Lesson video
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Starter quiz
6 Questions
A four-sided shape with 4 right angles.
Any four-sided shape.
A four-sided shape with 4 right angles and 4 equal sides.
Exit quiz
6 Questions
