population review

Population Clock

1-2. LDC’s have higher birth, death rates, and much higher infant mortlity rates.

The difference between MDC’s and LDC’s in population

I wonder how much immigration affects population growth in MDC’s

Take Notes

Population Pyramids

How can we look at populations?

• Demographers use population pyramids to study the distribution of people across age structures.

SHAPE: Triangle “The House” Column Reducing Pentagon

Triangle

Super Rapid Population GrowthPoor


House

Still growing due to medical advances, and slowing CBR due to family planning and education of girlsPoor


Column

Slow growth due to education and medical advancesRich


Inverted Pentagon

Zero Growth


Rapid Growth

Sketch Pyramid Shapes

Momentum Growth

Slow Growth

Zero GrowthTFR = 4.0-7.0

TFR = 3.0-3.9

TFR = 2.0-2.2

TFR = 1.9 and below

Affect of AIDS on population pyramid for South Africa.

Predicted population for 2035, without and with AIDS.With AIDS, looks like a population “chimney.”

What are the effects of the One-Child Policy today?

3.3 3.1

China’s Pyramid

Question of the Day• What challenges will a country face if it has more old people than young?

Do Now from yesterday

Age DistributionAge, Total % Pop

Country 1: 17% male; 16.9 female children ages 0-9

Country 2: 7.3%male; 7% female children ages 0-9

Different age groups and their % of the population

Total male+female ages 0-9 Country 1 = 17+16.9=33.9%Country 2 has slower pop growth than country 1

Do Now

Distribution of World Pop

Rectangles showing regional pop change

Asia, Africa: Population increasing

Europe: Population decreasing

Asia, Africa and China’s pop increasing by 2025Europe’s pop will actually decrease by 2025

Do Now

It took a long time for pop to reach 1 billion

what the carrying capacity of the earth is?

It only takes 12 years to add 1 billion

How long it has taken for population to add 1 billion

What are the consequences of an aging population?

As the Chinese population gets older, what needs to happen to care for these older people?

Fill in for China

What are the effects of the One-Child Policy today?

3.3 3.1

China

MDC but it isn’t.

Due to aging, China will have to increase health care; also need more workers to pay taxes.

Choose another country from the Data sheet. Bonus for each

pyramid you draw!

5.1 4.9

Complete this summary statement: Do Now : China has a pyramid in the shape of a ______________________. This is due to the ____ ______ ______ that began about ______________. Chinese women use _________________ and __________________ to only have one child.

Exit Ticket

reducing pentagonone child policy

1979economic incentives

family planning/birth control

Test Prep Q 1

Test Prep Q 2

Test Prep Q 3

Test Prep Q 4

Test Prep Q 5

Test Prep Q 6

Test Prep Q 7-8

Test Prep Q 9-10

Demographic Transition Model - Bi

rths

and

Dea

ths

for e

very

100

0 m

embe

rs o

f pop

ulati

on 40

30

20

10

Stage 1 Stage 2 Stage 3 Stage 4

Shape of Population Pyramids in each stage

Richest Countries, Zero Growth, TFR 2.0 and lower,

1.5

Reducing PentagonStage 4

Rich Countries, Slow Growth, TFR 2.1-2.9

ColumnStage 4

Moving from poor to (middle) (Still growing due to momentum), TFR 3.0-3.9

House (Stage 3

Poor Countries, Rapid Growth, TFR 4.0-7.0

Triangle Stage 2

Rapid GrowthCharts that show the percentages of each age group in the total population, divided by gender.

For poorer countries, the chart is shaped like a pyramid. Infant mortality rates are high, life expectancy is shorter.

Slower Growth due to improved health care, longer life, more educated women having fewer children

TFR = 2.1 or lower. Remember TFR of 2.1 is replacement rate, stable, zero growth

population review

Education