Population Pyramids
Content
- Statement of inquiry
- What are the components of global population change?
- Aim of this lesson
- To be able to analyse population pyramids.
- To be able to classify population pyramids by stage.
- To be able to infer population characteristics from population pyramid structure.
Context
Starter
By the end of this video clip you should be able to draw a population pyramid, with annotations, for the country you live in.
[7 October 2009]
Activities
Dynamic population pyramid generation
PopulationPyramid.net
The four stages of population pyramids
| Stage 1 |
|---|
| Expansive |
| Concave sides |
| High birth rate |
| High death rate |
| Short life expectancy |
| Rapid fall in each upward age group due to high DR |
| Niger |
| Stage 2 |
|---|
| Expansive |
| Straight sides |
| Still high birth rate |
| Falling death rate |
| Slightly longer life expectancy |
| Fall in DR so more people living into middle age |
| Haiti |
| Stage 3 |
|---|
| Stationary |
| Convex sides |
| Declining birth rate |
| Low death rate |
| Long life expectancy |
| An increasing proportion of the population is in the 65+ age group |
| Morocco |
| Stage 4 |
|---|
| Contractive |
| Convex sides |
| Very low birth rate |
| Low death rate |
| Longer life expectancy |
| Higher dependency ratio |
| Australia |
Population pyramids worksheet
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