1. Population Growth and Demography Change
Pyramid Building
Population Growth and Demography Change

2. Three Patterns of Change
Expanding Stable Contracting

3. Interpretations
Which age group has the greatest number of people? Which bar includes your age group? Are there more people in your age group or the group below you?

4. Interpretations
Population pyramids can show the history of a country’s population growth. Some western countries had a “baby-boom” between the years of This boom can now be seen as a bulge in the middle of pyramid 2.

5. Interpretations
In an expanding population the dependants are mainly ____. In a contracting population, the dependants are ____.

6. Importance to Governments?
Why would a government want to know the age structure and gender of the population?
Services?

7. Assignment
Everyone is going to draw a population pyramid for a specific country.
First we will practice with the U.S.
Everyone will need a graph activity sheet and a pencil.

8. Building a Population Pyramid
Males on the left, Females on the right, measured as a percent of the population.
Age
Males
Females
0-19 15 14
20-39 16
40-59 11 12
60+ 7 10

9. Pyramid Population Game
Everyone will need a blank graph sheet and a pencil.
Mr. G will form groups.
Each group gets a modified pyramid data table.

10. Pyramid Population Game
Group 1 is assigned countries 1-5.
Group 2 is assigned countries 6-10.
Group 3 is assigned countries
Group 4 is assigned countries
Group 5 is assigned countries
Group 6 is assigned countries
Group 7 is assigned countries

11. Pyramid Population Game
Draw the population pyramid for your country following instructions from Mr. Gomme
Your group will try and correctly match each pyramid with each country for every group
The group with the most correct answers will win big prizes and bragging rights