Understanding 3D Shapes for 11+ Maths
19 October 2026
Why 3D shapes matter in 11+ maths
Recognising and describing 3D shapes is a key part of the 11+ maths exam. These questions test spatial reasoning and understanding of shape properties, helping children develop skills they will use throughout their maths journey.
Key insight: Being comfortable with 3D shapes builds confidence for trickier geometry questions.
What are 3D shapes
A 3D shape is a solid object with length, width and height. Unlike 2D shapes, which are flat, 3D shapes take up space and can be held or imagined as real objects.
Faces, edges and vertices explained
Every 3D shape has faces (the flat or curved surfaces), edges (the lines where faces meet), and vertices (the corners where edges meet). For example, a cube has 6 faces, 12 edges and 8 vertices.
Common 3D shapes in the 11+
Shapes your child should know include: cube, cuboid (rectangular box), pyramid, cylinder, cone and sphere. Each has its own set of faces, edges and vertices to remember.
How to practise at home
Use household objects to spot real-life examples of 3D shapes. Draw and label shapes together. Challenge your child to count faces, edges and vertices, or to describe shapes in their own words.
Key insight: Talking through the properties out loud helps children remember key facts.
Supporting your child's progress
Encourage regular short practice sessions and use interactive worksheets to reinforce learning. Celebrate small wins to keep motivation high.
Next steps
Explore the interactive 3D shapes practice packages on EB-Maths to help your child build strong foundations for the 11+ exam.
