POPULATION PROBLEM SET
Answers
Historical Population What was the world’s population in 1804?
1 billion Examine the world’s population in 1927,
1960, 1974, 1987, 1999 ~ what trend do you notice? Exponential (fast) population growth
Examine the world’s population in 2013, 2028, 2054, 2200 ~ what trend do you notice about projections? Rate of Population Growth is decreasing - (natural increase)
Historical Population Growth
United Nations Population Models
Measuring Population Change Population change is measured by four
basic components: How many people are born – BIRTH
RATE How many people die – DEATH RATE How many move into an area –
IMMIGRATION RATE How many move out of a region (EXIT)
– EMIGRATION RATE
NATURAL INCREASE NI = BIRTH RATE – DEATH RATE • Canada’s Natural Increase: 10.6 – 7.4 = 3.2 per
1000(STABLE/CONTRACTING)
Russia’s Natural Increase: 10.8 – 15.1 = -4.3
(CONTRACTING) India’s Natural Increase: 23.0 - 8.5 = 14.5
(EXPANDING)
CENSUS DATA Every 5-10 years in
Canada Questions for
Canada’s population – gives government information to help provide services
Very importantAccuracy based on infrastructure, literacy rates, political stability, government freedom, wealth of a country
World Population Density* Crowdedness *
Canada’s Population Density
World’s Largest Cities1. Tokyo – 37 m2. Jakarta –
26m3. Seoul – 22m4. Dehli5. Shanghai –
20m10. Mexico –
19m
POPULATION FACTSThe world’s population growth pattern has been exponential; it is increasing at a rapid pace that can seem uncontrollable at times.
Why the explosion in population growth?
•The number of people (death rate) is decreasing due to better medical care
•Birth rates continue to be high in COUNTRIES THAT STRUGGLE WITH POVERTY however in many newly industrializing countries like India, infant mortality is decreasing.
But Surprise!
The world’s population growth rate is decreasing on every continent. We reached our peak growth rate around 1950, and our rate of natural increase is decreasing globally.
Why would people want a large family?
BRAINSTORM
BABY-O-MATIC Guaranteed 100% accuracy
1. Discuss your score with your group2. Discuss how many children you actually
believe you will have3. Using your ‘Sherlock’ Inferencing
Skills – determine what factors will affect the number of children a woman may have in her lifetime.
Why Do Some Countries Have Large Populations and Other Small? Career Prospects Birth rates Death Rates Health Care ‘Need for Children’ – poverty Education levels Women’s Rights Infant Mortality Rate Rural living – more workers needed to collect water, etc. Sons bring wealth, dowries, etc. Sense of community
AGE THAT WOMEN HAVE THEIR FIRST CHILD IS EXTREMELY SIGNIFICANT - LONGER PROLONGED, LOWER POPULATION RATES
AGE PYRAMID - CANADA
CANADIAN STATS Overall Population Density is extremely
low Average Life Expectancy is 81 years old
BC – Men 80, Women 84 Rate of Natural Increase is 4.0 (2013) Population growth rate is highest of all
G8 countries – 2/3 of growth rate is from immigration – important to support aging population of BABY BOOMERS
Pyramids Tell a Story
Germany’s Age Pyramid
What Does Your Pyramid Look Like? Explain your pyramid to your partner!
What is the story behind your population?
What are your country’s “prospects for the future”?
Ensure is complete ~ worth 5 marks