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