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      Lesson details

      Learning outcome

      I can interpret and analyse population pyramids.

      Key learning points

      1. A population pyramid shows the age and gender balance for a country.
      2. A wider base on a pyramid means that there is a high birth rate.
      3. The taller a pyramid is, the greater the life expectancy.
      4. Bulges in population pyramids show years where there was a baby boom.

      Keywords

      • Population pyramid - a graphical representation of age and gender distribution in a population

      • Birth rate - the number of live births per 1000 people per year

      • Life expectancy - the average number of years a person is expected to live

      Common misconception

      All population pyramids are pyramid-shaped.

      Population pyramids can have different shapes depending on demographic factors. Some may be more rectangular or even inverted, reflecting various population structures.

      Teacher tip

      Give students some figures and graph paper to draw their own population pyramids.

      Licence

      This content is © Oak National Academy Limited (2026), licensed on Open Government Licence version 3.0
      except where otherwise stated. See Oak's terms & conditions
      (Collection 2).

      Lesson video

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      Prior knowledge starter quiz

      6 Questions

      Q1.
      Which area in the UK has a lower population density?

      London
      South-east England
      Manchester
      Correct answer: Scottish Highlands

      Q2.
      How can topography affect population density in the UK?

      Flat areas attract fewer people
      Mountains are more densely populated
      Correct answer: Flat and fertile areas have higher population density
      Topography has no effect on population distribution

      Q3.
      Which of these factors is commonly associated with higher population density?

      Limited access to transportation
      Harsh climate
      Correct answer: Closeness to rivers and fertile land
      Steep terrain

      Q4.
      What is internal migration?

      Moving from one country to another
      Correct answer: Moving from rural to urban areas within the same country
      Moving for vacation purposes
      Moving temporarily for work

      Q5.
      Which city in the UK has the largest population?

      Birmingham
      Manchester
      Edinburgh
      Correct answer: London

      Q6.
      Why do fewer people live in mountainous regions like the Scottish Highlands?

      The climate is extremely hot
      The flat terrain allows fewer settlements
      Correct answer: Steep slopes and rocky soil make construction and farming difficult
      Lack of water resources

      4 Questions

      Q1.
      What does the shape of a population pyramid with a wide base and narrow top typically indicate?

      High birth rate and high life expectancy
      Low birth rate and low life expectancy
      Correct answer: High birth rate and high death rate
      Low birth rate and high death rate

      Q2.
      In a population pyramid, what does a narrow base suggest about the country’s birth rate?

      High birth rate
      Correct answer: Low birth rate
      High death rate
      Low life expectancy

      Q3.
      Which axis on a population pyramid shows the age groups?

      X-axis
      Correct answer: Y-axis
      Z-axis
      The title axis

      Q4.
      What does a bulge in a specific age group on a population pyramid indicate?

      Low birth rate
      Correct answer: Increased population in that age group
      Increased life expectancy
      High death rate in that age group

      To help you plan your 7 geography lesson on: Population structure, download all teaching resources for free and adapt to suit your pupils' needs...