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General learning · Reception-Year 2
How can I teach children to sort shapes by their properties?
Choose a clear sorting rule and check every shape against it. Discussing the rule helps children attend to properties rather than colour, size or a familiar orientation.

Download: Shape sorting cards
A4 PDF · 2 pages · free · no sign-up
Print page 1 for the activity and keep page 2 for teaching notes and answers or suggested responses.
Use A4 paper at 100% or Actual size. Choose by the task and your class; the suggested range is a starting point, not a curriculum-alignment claim.
How to use this resource
- Look at all the cards and describe visible features.
- Agree one rule, sort the cards and explain a difficult choice.
- Change the rule and discuss which shapes move.
Make it easier or add challenge
More support
Sort a small selection into two groups with a shared example in each.
More challenge
Use two properties together and explain where a shape satisfying both belongs.
What to look for
Can the child state a consistent rule and apply it to a rotated shape? Accept a different valid sort when it is explained.
Teacher answers and suggested responses
By shape: circles A,D,G,J; squares B,E,H,K; triangles C,F,I,L.
By drawn size: small A-F; large G-L.
Other explained rules are possible. A card can belong to a shape group and a size group when those sets overlap.
A useful next step
Printing, access and sharing
Allow drawing, discussion, practical materials or usual communication tools where they support the learning aim. Use separate paper if a child needs more writing or drawing space.
Free to print and copy within your school, setting or family. Retain the website credit and share this resource page with other settings.