Mathematics·Geometry·conceptual
3-D shapes (age 11+)
Use the properties of faces, surfaces, edges, and vertices of 3-D shapes (cubes, cuboids, prisms, cylinders, pyramids, cones, and spheres) to solve problems, including visualising cross-sections
Suggested ages 11–13
Evidence of understanding
- Count and describe the faces, edges, and vertices of a triangular prism and a square-based pyramid
- Describe the 2-D cross-section produced by slicing a cylinder horizontally or a cone vertically
- Use properties of 3-D shapes to determine whether a given net will fold into a specified solid
Assessment prompt
If 3-D shapes (age 11+) slices a cylinder straight across the middle like cutting a tin of beans in half, can they describe the shape of the cut surface? What about slicing at an angle?
Standards alignment
7.G.3US · ccss-math
Describe the two-dimensional figures that result from slicing three-dimensional figures
Common Core State Standards for Mathematics · 7
KS3.Maths.Geo.15GB · uk-nc-2013
Properties of 3-D Shapes
The national curriculum in England: Key stages 1 and 2 framework document · Key Stage 3