1. Population Pyramids

2. Demographic Transition Model

3. High Birth Rate
Falling Birth Rate
Low Birth Rate
High Death Rate
Falling Death Rate
Low Death Rate
Low – Slightly increasing Death Rate
Basic technology
Growth in technology
Improving technology
Established technology
New and emerging technology
Low natural increase
Rising natural increase
Rapid Natural increase
Low – negative natural increase
Isolated Indigenous communities
The Gambia
Brazil
USA
Japan

4. Fill in the gaps in the following.
a) Australia has a low birth rate, low death rate, low natural increase rate and established technology. This means it is at Stage __________________ on the model.
b) In 1900 most countries in South East Asia were at Stage 1. This meant they had __________________ birth rates, __________________ death rates, __________________ natural increase rates and __________________ technology.
c) By 2010, Japan was at Stage 5. This meant it had a __________________ birth rate, a __________________ death rate, a __________________ natural increase rate, and __________________ technology.

5. Write down the stage to which the following most likely belong.
a) a population explosion because of sudden improvement in health _________
b) high urbanisation, not a lot of new babies being born, lots of new technology and education, with small families _________
c) rural society of poor farmers and large families _________

6. Population Pyramids
A pyramid-shaped graph illustrating the age distribution of a population: the youngest are represented by a rectangle at the base, the oldest by one at the top

12. Youthful Dependents

13. Aged
Dependents

14. Working/
Economically Active
Population

15. How many working people are supporting how many dependents
Dependency Ratio
Aged
Dependents
Working/
Economically Active
Population
Youthful Dependents
How many working people are supporting how many dependents

18. Pyramid
Growing
Box
Stable
Cup/Coffin
Declining

19. Key things to know
The shape can tell us information about birth and death rates as well as life expectancy.
A population pyramid tells us how many dependants there are. There are two groups of dependants; young dependants (aged below 15) and elderly dependants (aged over 65).
Dependants rely upon the economically active for economic support.
Many LEDCs have a high number of young dependants, whilst many MEDCs have a growing number of elderly dependants.

20. Change over time
Over time, as a country develops, the shape changes from young to intermediate to old
If a country has a lot of young people it will become larger more quickly
Improvements in health will straighten the sides and add height
Conflict will cause an imbalanced pyramid with more women than men
Baby Booms will cause a sudden increase in birth rates
Disease can cause a sudden drop in different age groups
Migration will cause a bulge from 20s to 40s

21. the total number of children aged 0–4 is
the number of males aged 35–39 is
the number of females aged 65–69 is
Which age group has the largest number of people?

22. Activities Complete Population Pyramid Sheet
Population Pyramids Explained
Complete Brazil Sheet