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

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

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

Maths

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.

Shape: discuss and compare 2D and 3D shapes

Which 3D shape could Jun have used to create this painting?

Which painting shows all the faces of this 3D shape?

Which 3D shapes could Jun build with his construction materials?

Match the 2D shape to the 3D shape that will be made once folded.

Match the image of the polygon to its name.

Order the shapes from largest to smallest.

True or false. The vertices of this polygon are all the same.

Compare these shapes. Which statements are true?

How would you describe the vertex that the arrow is pointing to?

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