Core 1.2 Changing Population and Places

IB Outcome: How the impacts of population change and spatial interactions between places can be categorized and represented graphically

Discussion:

• How does population increase?
• How does it decrease?
• How can age of marriage affect population size?
• How can we measure populations?
• Why is China's still growing after 30 years of "one child policy?
• Why do people migrate?
• Are push factors or pull factors more important when deciding to migrate?
• Can you explain the trend in the graph below?

Vocab:

• Crude Birth Rate (CBR): The most common measure of fertility. The number of births, per 1000 people in the population, per year. All the population is considered. Numbers like 10, 20, 40, etc.
  • Rates of 30+ /1000 are HIGH
  • Rates of below 13/1000 are LOW
• (Total) Fertility Rate (T)FR): The average number of children born to a woman during her lifetime. Number of live births per female of reproductive age (15-49).
  • —Numbers such as 2.2, 4.5.
  • Indicates population change over a long period of time.
  • Instructive about societal norms in any given culture.
  • A TFR of 2.1 is considered as being the replacement birth rate.
  • Lower than 2.1 yields population decrease while rates greater than 2.1 yields population increase.
  • Improvements in medical conditions lower the replacement rate (below 2.06 in many countries).
• Crude Death Rate (CDR)
  • The average annual number of deaths during a year per 1,000 population.
• Life Expectancy: The average number of years to be lived by a group of people born in the same year, if mortality at each age remains constant in the future.

World population

Knowledge gained from population projections

• Demands for different goods
• Needs for education or healthcare
• Possible employment numbers
• Foretell future problems
• Imbalance of sexes ( eg: China has too many boys)

Exercise:

In groups of 2 or 3, you will create an annotated poster, using graphs, maps and population pyramids, describing trends in two contrasting countries of:

• population change
• demographic transition over time
• natural increase
• fertility rate
• life expectancy
• population structure
• dependency ratios

You will have class time to complete the posters.

Due Thursday September 14th

In groups read one of the following article and report your findings back to the class, mentioning the 4Ps:

• J. Kotkin, The Problem wth Megacities, Forbes 2011
• J.W. Schoen, Megacities' Explosive Growth poses Epic Challenge
• V. Collingridge, The Rise and Rise of the Asian Megacities
• J. L. Hester, How Much are Trees Worth to Megacities and S. DeWeerdt Megacity Trees Yield Mega Benefits
• AFP Tokyo The Megacity that Works

First Summative assessment:

• IB learning outcome: You need a detailed case study of of a contemporary megacity experiencing rapid growth, and the consequences of megacity growth for individuals and societies

You will write a 5 or 6 paragraph (2 pages max) essay answering one of the following essay question:

• Using a named example, examine the consequences of megacity growth in LICs or NICs
• You will need a conceptual approach (4Ps) to your answer to score high on the markband.
  • Here is a suggested template produced by a fellow teacher
• Here is the Assessment rubric I will use for ALL of your essays and presentations, except for the HL extension.

Due Monday Sep 25th

Forced Migration

Your megacity will be your voluntary migration CS.

IB learning outcome: The causes and consequences of forced migration and internal displacement

• Detailed examples of two or more forced movements, to include environmental and political push factors, and consequences for people and places