Ontario K–8 curriculum · Glossary

unit

Definition

A unit is a standard amount we use to measure things, like an inch for length or a minute for time. It helps us compare how big or small something is.

When you measure a book with paper clips, the 'unit' is one paper clip.

How to teach this in 30 seconds

Try this analogy: A unit is like a single Lego block you use over and over to measure how long your toy car is.

Ask your child: How many paper clips long is your crayon?

Common mix-up: Kids may think you can switch what you're measuring with, like using a block then a crayon. A unit is the same single thing used over and over again.

Examples

  • Using your foot as a unit to measure how many steps long the rug is.
  • In a group of 5 toy cars, one car is the unit you are counting.

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

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