Discuss and compare 3D shapes
I can discuss and compare the properties of 3D shapes.
Discuss and compare 3D shapes
I can discuss and compare the properties of 3D shapes.
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Lesson details
Key learning points
- 3D shapes can be discussed and compared by their properties.
- The properties of 3D shapes are the faces, edges and vertices.
- 3D shapes can be compared using informal language such as taller, shorter, wider, narrower, smaller and larger.
Keywords
Compare - You compare to find out what is the same and what is different.
Faces - The flat 2D surfaces of a 3D shape.
Vertices - The corners of a shape where two or more edges meet.
Edges - The straight lines where two faces of a 3D shape meet.
Common misconception
Children may think that the tallest shape is always the largest.
Explore lots of different 3D shapes of different proportions. Allow children to handle and rotate the shapes. Use hollow shapes and explore filling them with water or sand to help children see that the largest shape is the one that can hold the most.
Licence
Lesson video
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Prior knowledge starter quiz
6 Questions
Q1.True or false. Pedro has chosen the largest slice of pizza.
Q2.Tick the correct sentence to show how you could compare these shapes.
Q3.What are the correct names of these 3D shapes?
Q4.What are the correct names of these 3D shapes?
Q5.Match each word to its definition.
A flat surface of a 3D shape.
A straight line on a 3D shape where two faces meet.
A point where two or more edges of a 3D shape meet. A corner.
Q6.How have these shapes been sorted?
Assessment exit quiz
6 Questions
Q1.True or false. b is the tallest cylinder.
Q2.Which sentence is correct?
Q3.Complete the statement.
Cylinder a is ______ than cylinder b.
Q4.Tick the correct sentences.
Q5.Tick the statements that are true about these 3D shapes.
Q6.What is the same about these 3D shapes?
