Ontario K–8 curriculum · Glossary

trapezoid

Definition

A trapezoid is a four-sided shape that has at least one pair of sides that run in the same direction and will never touch (these are called parallel sides).

This shape is a trapezoid because its top and bottom sides are parallel.

How to teach this in 30 seconds

Try this analogy: A trapezoid is like the shape of a bucket or a small bowl, with a flat bottom and a wider, flat top.

Ask your child: Can you draw a shape with a flat bottom and a flat top?

Common mix-up: Kids may think a trapezoid must look like a perfectly symmetrical bucket. A trapezoid just needs one pair of sides that are parallel, like two train tracks that never touch.

Examples

  • A drawing of a roof that is flat on top.
  • The shape of a little red wagon seen from the side.
  • A block that has a wide bottom, a narrow top, and two slanted sides.

trapezoid is a term used in Ontario’s Kindergarten to Grade 8 curriculum.

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