A 2D shape made up of 3 or more straight sides.

A shape with only two measurable dimensions, e.g. width and length, but no thickness.

A vertex is the point where two lines meet. The plural is vertices.

Recognise and sort polygons

Maths

Describe and name polygons, including triangles and quadrilaterals

Describe, name and sort polygons, including pentagons, hexagons and octagons

Lines of symmetry

Discuss and compare polygons

Investigate how polygons can be joined and folded to form 3D shapes

Describe and name 3D shapes

Describe and name 3d shapes – prisms and pyramids

Find different ways to sort 3D shapes

Discuss and compare 3D shapes

In this unit pupils will learn that polygons can be described, sorted, compared and named according to the number of sides and vertices. They will describe 3D shapes finding different ways to sort and compare them. In the future unit pupils will investigate different ways to compose and decompose a polygon. They will investigate quadrilaterals with and without parallel and perpendicular sides. 

In the prior unit pupils composed, copied, extended and developed repeating and radiating patterns. They explored, discussed, and compared 3D and 2D shapes. In this unit pupils will learn that polygons can be described, sorted, compared and named according to the number of sides and vertices. They will describe 3D shapes, finding different ways to sort and compare them.

In this unit pupils will learn that polygons can be described, sorted, compared and named according to the number of sides and vertices. They will describe 3D shapes, finding different ways to sort and compare them.

Shape: discuss and compare 2D and 3D shapes

A polygon with 4 sides and 4 'square corners'.

A polygon with 4 equal sides and 4 'square corners'.

If you were to fold a shape on its line of symmetry, both halves would match exactly.

An image or shape as it would be seen in a mirror.

When a shape has a line of symmetry, it can be described as symmetrical.

A larger shape is one that takes up more space than another.

A smaller shape is one that takes up less space than another.

You compare to find out what is the same and what is different.

A shape with three measurable dimensions, e.g. width, height and depth.

A 3D shape with 6 identical square faces.

A 3D shape with one circular face, one curved surface and one vertex.

A 3D shape with two circular faces and one curved surface.

A 3D shape that has two opposite, identical polygon faces, joined by rectangular faces.

A 3D shape that has a base and an apex at the opposite end to the base, joined by triangular faces.

The straight lines where two faces of a 3D shape meet.

The corners of a shape where two or more edges meet.

Primary

Year 1

Year 2

Year 3

Year 4

Year 5

Year 6

Secondary

Year 7

Year 8

Year 9

Year 10

Shape: discuss and compare 2D and 3D shapes

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