sec 2 unit 2 world population
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sec 2 unti 2TRANSCRIPT
Unit 2 : World Population
Chong Boon Secondary SchoolHumanities Department (Geography Unit)Lower Secondary Geography (Sec Two)
Prepared by Mr Kelwin Koh
Unit Objectives
At the end of this unit, you will be able to Identify and calculate ▪ Population growth rate▪ Rate of Natural Increase▪ Population Density
Identify the factors that affect population growth
Identify the factors that affect population density
What is Global Population?The number of people who live on Earth.
Current global population stands at about 7.1 billion humans.
Population grows at an exponential rate Rapidly increasing since the year 1000 AD
Factors that affect Population Growth
Births – Deaths = Population growth
Births – Deaths = Population growth
Births – Deaths = Negative Population growth
Important Formulaes
Birth rate Number of live births per 1000 people in a year
Death rate Number of deaths per 1000 people in a year
Rate of natural increase Birth rate minus Death rate
Live Birth
Newborn that is delivered alive.
IMR (Infant Mortality rate) Number of children
who die before 1 year of age / 1000 people
Stillborn babies are babies that are delivered but already dead.
Let’s think for a moment
On average, 20 babies are born for every 1000 people and 9 people die for every 1000 people in a year. What is the rate of natural increase?
Birth Rate = 20 Death Rate = 9Rate of Natural Increase = 20 – 9
(Option 1)Group Work!
In your groups, discuss and write down on the paper provided. (provide examples)
1. What are 3 conditions that will encourage people to have a lot of children?
2. What are 3 conditions that will result in a lot of deaths suddenly?
5 Minut
es
(Option 2) Video
Take a look at the following clips and write down your feelings about them on the Leaf provided.
Reflection Qn: How do you think your world will be like in 2060?
Population Distribution
The spread of people in an area
Take a look at pg 10& 11 Figure 2.3
Most of the global population is located in ASIA
Which of the 7 Continents is the least populated?
Population Density
The total number of people living in a square kilometre of land.
Population density = Total population
Area
Densely populated
Sparsely populated
Factors that affect Distribution and Density
1. Physical factors 2. Human and
Economic factors
Physical factors Relief
Flat terrain encourages growth Climate
Harsh climate discourages growth Soil & Minerals
Ease of cultivation and presence of minerals encourage growth
Natural Vegetation & Water Source of food and water
encourages growth
Human and Economic factors
AgricultureNatural resourcesIndustryCommerceTransport and Accessibility
Ipoh A mining town casestudy
A mining town casestudy Tin is discovered, a big company buys
the land and starts mining. Miners move into the town
Brings families, children Schools and Hospital built
Other amenities built Transport (road/ rail/ harbour) built to
move tin out (export) Other industries may grow due to the
large number of people
A mining town casestudy
When the tin is all gone Main employer in town now gone
Lack of jobs for ex-miners Large scale departure from town No new industry to replace mining
Town shrinks to old sizeIPOH, Peninsular Malaysia
Knowledge Builder Quiz!
1. What is the most famous natural resource from Ipoh?
2. Who is the most famous celebrity from Ipoh in the past 20 years?
3. Name a local delicacy that has ‘Ipoh’ in its name!
Submit all answers in the BOX by next Monday.
3 lucky winners will get prizes!
Group Work!
Let’s take a look at the following questions
1. Why is there a need for schools and hospitals in every densely populated mining town?
2. What are 3 other services that every mining town will have. (provide an explanation for the purpose of that service)
5 Minut
es
Mindmapping
World Population
Population Growth
Population Density
Factors affecting population density
Slow growth
High population density
Moderate population density
Low population density
Fast growth
Declining growth
Physical factors
Human and Economic factors
Population Growth
Physical FactorsHuman and Economic Factors
Population Density
High Population
density
ModeratePopulation
density
Low Population
density
Slow Growth
Very Fast
Growth
Growth Slowing down
World Population
Mini Test
You cannot have your notes/ notebook with you.
Duration : 15 minutesNO TEXTBOOKS!Write in Black / Dark Blue ink
Good Luck