2 - Arrowhead High School

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What was the world
population at the time
of Jesus Christ?
300 million
When did it shoot up?
1850
Why??
engines Medicines
Technologies
Imagine the year is 1885. The US Navy is sailing its ships through the Pacific Ocean
and to their great surprise, they discover a whole new continent. It is no small island,
but a continent almost as big as Australia. No one knows how it was never discovered
before, by anyone. The continent is not inhabited so people from Europe and America
move in. By the year 1900 it is expected that 250,000 people (1/4 million) will have
relocated there permanently. Help the many governments of the new continent plan
for future growth. On the map below make your prediction as to where people will
settle.
Directions:
1. On the map below place 25 dots with a marker to show where you think people will
be living in the year 1900. Each dot = 10,000 people. You may place the dots where
ever you see fit. The triangles in the middle represent mountains.
2. Any place that you have more than three or more dots close together (size of your
pinky nail) you must give a short reason as to why you are putting them so close.
Write your justification and draw an arrow to the dots you are referring to.
Pacific Ocean
Directions:
1. On the map below place 25 dots with a
marker to show where you think people will be
living in the year 1900. Each dot you place
represents 10,000 people. You may place the
dots where ever you see fit. They may be
bunched together, spaced apart or some
combination of both. Use whatever you know
about climate or people’s needs and preferences
to help you place your dots. The triangles in
the middle represent mountains.
2. Any place that you have more than three or
more dots close together (size of your pinky
nail) you must give a short reason as to why
you are putting them so close. Write your
justification and draw an arrow to the dots you
Tropic
of
are
referring
to.
Capricorn 22.5 S
Pacific Ocean
Pacific Ocean
1 . Near water (i.e. 2/3 <300 mi of oceans )
For travel & food sources
2. Potable water sources
3. Flatter land (for crops)
4. Fertile soil (deltas & volcanic ash, so…?)
5. Moderate temperature (mid latitudes)
6. Natural protection (bays)
7. Major “crossroads” points/travel routes
(CHOKE POINTS)
Where are there the most layers overlapping?
If you had “first picks”, where
would you want to buy land?
…any land in the middle?
Click after
point #4
Nile River delta
created by soils
carried by the
river &
deposited in the
Mediterranean
Sea
Click to
return to
presentation
Deltas “grow” the land
out into the water but are
VERY low & flood
easily. Great soil
though!
East
Asia
China,
Japan,
Koreas,
Taiwan
South Asia
India, Pakistan, Bangladesh, and Sri Lanka
Europe
Largely concentrated in urban areas
“Our Place”
Largely concentrated in urban areas
POPULATION
HIGH
Negative growth
Positive growth
LOW
1950
1960
1970
1980
1990
2000
2010
Americans - Caucasians (whites)
Developed countries around the world
America - OVERALL: including minority groups and immigrants
Underdeveloped countries around the world
2020
ACTIVITY: What is happening to the size of the populations in each of the following?
Germany
Nigeria
WHY? Write down 2 ideas why.
India
HIGH
POPULATION
Norway
Bolivia
LOW
1950
1960
1970
1980
1990
Developed countries around the world
Underdeveloped countries around the world
2000
2010
2020
Reasons for
Reasons for
Positive
Negative
Population Growth:
Population Growth:
Example
countries:
Example
countries:
poor economy
poor health care
poor education
1) want kids but high infant mortality
2) Little or no birth control or
family planning
People CHOSE to not have many kids,
What ‘technology’ allows
them to chose? birth control
What do people want INSTEAD
• money
•education
•jobs
•pets
20th
Century
21st
Century
Undeveloped
UnderEmerging
developed
Developed
21st
Century
Underdeveloped
Emerging
Developed
deaths births
+ health care
+ jobs
+ education
deaths births
Video:
Ikea boxes explain
population growth
http://www.gapminder.org/videos/p
opulation-growth-explained-withikea-boxes/
As a country ages, people relocate where they live. Where do
people move from, and where do they move to?
Where do most people in the world live in 1950?
Rural or Urban?
POPULTAION
PERCENTAGE
70 %
30 %
1950
1960
1970
1980
1990
2000
2010
Urban, means _________________________
Rural, means _________________________
push/pull factors…?
2020
What countries do you suppose these are?
(Think about Underdeveloped, Emerging, Developed)
Nineteen countries in the world have a negative or zero population
growth. Where are they?
Russia: will lose 22% of their population by 2050
shrinking 30 million people (from 142.3 million today to 110.3 million in 2050)
Japan is expected to lose 21% of its population by 2050
(shrinking from 127.8 million to a mere 100.6 million in 2050).
Video:
200 Countries,
200 Years,
4 minutes
https://www.youtube.com/watch?v
=jbkSRLYSojo
Put these in order top to bottom:
positive, stable, negative
1000 births
- 1100 deaths
Growth =
Births
- Deaths
1000 births
- 900 deaths
1000 births
- 1000 deaths
Growth =
(partially)
Births
- Deaths
Growth =
Births
- Deaths
+
Immigration
- Emigration
Using simple numbers, create and write an example
where the population growth would be slightly
positive even if the birth rate was lower than the
death rate. Be ready to write it on the front board.
2
- 3
Natural
Increase
Births
Deaths
.
-1 +
5
- 2
Immigration
Emigration
.
3
=2
But that is the
addition to the
population, not
the rate.
Using simple numbers, create and write an example
where the population growth would be slightly
positive even if the birth rate was lower than the
death rate. Be ready to write it on the front board.
2
- 3
.
-1 +
-
5
2
3
.
=
2
But that is the
addition to the
population,
not the rate.
Population
2010
Add in
2011:
New total in
2011:
2 people 2 people 4 people
What is growth rate as a %?
100%
Rate means change,
so you need to know the PAST population .
1.
What are the three
variables in this graph?
•% in Age group
•Age group
•Gender !
2.
What percent of the
population is under 20?
22%!
3.
What percent of the
population is over 45?
10-12%!
4.
Write a ratio for kids to
adults:?
2:1
(kids) : (adults)
5.
Estimate and write a
ratio for kids to adults in
the USA
1:4
(kids) : (adults)
6.
Fill in the blank in the title.
Population Pyramid

Where are the “baby
boomers” on this
pyramid?
What do the top 2-3
rows tell you about
gender?

Which of these
communities is a
college town?

Which is a retirement
community?

For the bottom left
pyramid, explain why
the two sides aren’t
equal in overall size.

For the bottom right
pyramid, what
problems might this
place have to deal
with?
Complete the
Population Growth
Activity Sheet
economic stages of
development: a Simplistic look
Services
Manufacturing
Ag
Manufacturing
Agriculture
Agriculture (farming)
What are most people doing daily to survive?
Blue White
Collar Collar
Underdeveloped
Emerging
Developed
(Early stage)
(Middle stages)
(Later stages)
US as a Part of World Population
USA 5%
Rest of
World 95%
US as Consumers in World
USA, 35%
Rest of the
World 65%
Developed “North”
Developing “South”
Underdeveloped & Emerging
Video:
200 Countries,
200 Years,
4 minutes
VIDEO:
A Life on Hold: The story
of a teenage refugee
Print the following
slides for student
handouts.
POPULATION
HIGH
LOW
1950
1960
1970
1980
1990
2000
2010
2020
__________________- ____________________
______________countries around the world
America - _________________: including ____________________________
Reasons population declines in developed countries
_____________________________________________________________________________________
_____________________________________________________________________________________
Reasons population increases underdeveloped or emerging countries
_____________________________________________________________________________________
_____________________________________________________________________________________
Reasons for
Reasons for
Positive
Negative
Population Growth:
Population Growth:
Example
countries:
Example
countries:
POPULTAION
PERCENTAGE
HIGH
LOW
1950
1960
1970
1980
1990
2000
2010
Rural, means _________________________
Urban, means _________________________
1.
What are the three
variables in this graph?
2.
What percent of the
population is under 20?
3.
What percent of the
population is over 45?
4.
Write a ratio for kids to
adults:?
5.
Estimate and write a
ratio for kids to adults in
the USA
6.
Fill in the blank in the title.
 Which of these communities
is a college town?
 Which is a retirement
community?
 For the bottom left pyramid,
explain why the two sides
aren’t equal in overall size.
 For the bottom right
pyramid, what problems
might this place have to deal
with?
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