Checking and securing understanding of surface area of other prisms
I can efficiently calculate the surface area of other prisms.
Checking and securing understanding of surface area of other prisms
I can efficiently calculate the surface area of other prisms.
These resources will be removed by end of Summer Term 2025.
Lesson details
Key learning points
- The surface area of a prism is the sum of the area of all the faces.
- The net of a prism can help find the surface area of a prism but can be time consuming.
- Using known area facts the area of all the faces can be found and summed.
- It is important to find the surface area systematically and efficiently.
Keywords
Prism - A prism is a polyhedron with a base that is a polygon and a parallel opposite face that is identical. The corresponding edges of the two polygons are joined by parallelograms.
Surface area - The surface area is the total area of all the surfaces of a closed 3D shape. The surfaces include all faces and any curved surfaces.
Net - The net of a 3D object is a 2D representation of its surfaces that can be folded up into the 3D object.
Common misconception
Pupils can miss out some faces of the prism when calculating the surface area.
Encourage pupils to sketch out the net of the prism and label it clearly, to ensure that they include all faces in their calculation of the surface area. This will allow their answer to be checked more easily.
Licence
This content is © Oak National Academy Limited (2024), licensed on Open Government Licence version 3.0 except where otherwise stated. See Oak's terms & conditions (Collection 2).
Lesson video
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Starter quiz
6 Questions
Exit quiz
6 Questions
64 cm³
96 cm²
16 cm
4 cm
16 cm²
