Grade 3

What is an edge?

edge

The line where two faces of a solid shape meet.

For example

A Ludo dice has twelve edges and eight corners to count.

In Grade 3

Children run a finger along each edge of a box, counting where two faces meet.

Watch out for

Children often mix edges up with faces. A face is a flat surface, an edge is the line where two of them meet.

Say it at home

Hold a box and count the edges together, tracing each one with a finger.

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