Ontario K–8 curriculum · Glossary

population pyramid

Definition

A population pyramid is a special kind of bar graph that shows how many males and females of different ages live in a certain area, like a city or country. It helps us see if there are more young people, old people, or a good balance in the population.

A pyramid with a very wide base and narrow top shows a young, growing population with many births.

How to teach this in 30 seconds

Try this analogy: A population pyramid is like sorting a whole crowd of people into lines by age, with the youngest at the bottom, to see the shape of the community.

Ask your child: If you made a pyramid for your school, where would the biggest bar be?

Common mix-up: Students might see it as just a bar graph. The key is that the overall shape of the pyramid tells a story about a country's past and future, like whether it's growing or shrinking.

Examples

  • A pyramid that is wide in the middle shows a large working-age population.
  • A country with a top-heavy pyramid might need to plan for more elder care.

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

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