Leaning about demography

1. ជំពូកទី ១
Chapter 1
An Introduction to Demography
សេចក្តីស្តើមអំពីប្រជាសាស្រេ
ត

2. រំលឹកមេមរៀនពីេុន
Review of Previous Lesson
1. What is the previous lesson?
2. What did you learn about that lesson?
3. What is the most effective point from that
lesson?
4. How can you apply the main concept of the
lesson into your real life?

3. By the end of this chapter, students are able to:
1. Understand the some essential words of the lesson
2. Acquire what Demography is
3. Figure out the reason why Demography is important
4. Distinguish how you will use this information
មោលបំណងននមេមរៀន
Lesson Objectives

4. • Demography is the social science that studies: (1) the size, composition,
and distribution of the human population of a given area at a specific point
in time; (2) the changes in population size and composition; (3) the
components of these changes (fertility, mortality, and migration); (4) the
factors that affect these components; and (5) the consequences of
changes in population size, composition, and distribution, or in the
components themselves. Hence, demography may be more broadly
defined as the scientific study of the size, composition, and distribution of
human populations and their changes resulting from fertility, mortality,
and migration. Demography is concerned with how large (or how small)
are the populations; how the populations are composed according to age,
sex, race, marital status, and other characteristics; and how the
populations are distributed in physical space.
មេចកតីម្តើេ
Introduction

5. ពាក្យេំខាន់ៗ
Essential words
Examples
1. Population Types
2. Population Size
3. Population Structure
4. Migration
5. Behavior
មេមរៀនថ្មី
New lesson
Demography
 It is the statistical study of human
populations. Demography examines the
size, structure, and movements of
populations over space and time. It
uses methods from history, economics,
anthropology, sociology, and other
fields.

6. មេមរៀន
Lesson
What is Demography?
• The scientific study of human population.
• Concerned with:
1. Population size
2. Population growth or decline
3. Population processes
4. Population distribution
5. Population structure
6. Population characteristics

7. មេមរៀន
Lesson
The Past Is a Foreign Country
1900 2000
World population (billions) 1.6 6.1
U.S. population (millions) 76 281
U.S. percent of world total 4.8% 4.6%
Life expectancy(Life Duration) 47 77
Children per woman 3.5 2.1

8. មេមរៀន
Lesson
The Past Is a Foreign Country
1900 2000
U.S. Population
Immigrants from Italy
(1900–1910); (1990–2000)
2 million 63,000
Immigrants from Mexico
(1900–1910); (1990–2000)
50,000 2.2 million
% foreign-born 13.6% 11.1%
% urban 40% 80%

9. មេមរៀន
Lesson
The Past Is a Foreign Country
1900 2000
U.S. Population
Number of passenger cars 8,000 130 million
% of population under 15 34.4% 21.4%
% of population 65+ 4.1% 12.4%
Average persons per household 4.76 2.59
% high school graduates 10% 80%

10. មេមរៀន
Lesson
Why is Demography Important?
• Global issues that have important demographic
components include:
1. Terrorism and regional conflict
2. Violence in sub-Saharan Africa
3. The backlash against immigrants
4. Globalization
5. The degradation of the environment

11. មេមរៀន
Lesson
Degradation of the Environment
• Every person added to the population requires energy to
prepare food, to provide clothing and shelter, and to fuel
economic life.
1. More than half a billion people face water scarcity.
2. Two to three billion live in areas that are water-
stressed.

12. មេមរៀន
Lesson
Demographics of Politics
• The Census of Population provides data for the
apportionment of seats in the House of Representatives.
• Legislators ask questions about how population
influences the programs:
1. Will increase in the older population bankrupt the
Social Security system?
2. Would federal subsidies to inner-city areas help
lower the unemployment rate?

13. មេមរៀន
Lesson
Demographics of Social Planning
• Local agencies use demographics to plan for services for
their communities.
• Sickness and health are affected by sociodemographic
characteristics and the demand for services shifts with
demographic trends.

14. មេមរៀន
Lesson
Marketing Demographics
• Segmenting markets - tailoring products and services to a
specific demographic group
• Targeting - aiming the advertising of a product or service
to a specific demographic group
• Cluster marketing relates demographic information about
people to information about where they live.

15. មេមរៀន
Lesson
Business Demographics
• Demographics are an important component of site
selection for many businesses.
• Investors use demographics to find areas of potential
market growth.
• Human resource managers use demographics to increase
their awareness of the special qualities and needs among
their present and prospective employees.

16. ខ្លឹេសារេមងេបននមេមរៀន
Summary
• Demography is the social science that studies: (1) the size, composition, and
distribution of the human population of a given area at a specific point in time; (2)
the changes in population size and composition; (3) the components of these
changes (fertility, mortality, and migration); (4) the factors that affect these
components; and (5) the consequences of changes in population size, composition,
and distribution, or in the components themselves. Hence, demography may be
more broadly defined as the scientific study of the size, composition, and
distribution of human populations and their changes resulting from fertility,
mortality, and migration. Demography is concerned with how large (or how small)
are the populations; how the populations are composed according to age, sex, race,
marital status, and other characteristics; and how the populations are distributed
in physical space.

17. 1) Demography : the statistical study
of populations, especially human
beings..
2) Fertility : the natural capacity to
conceive a child. Fertility does not
come easily to everyone.
3) Migration : the movement of people
from one place to another with
intentions of settling, permanently
or temporarily, at a new location.
4) Entrepreneur : A person who risks
time and money to start and
manage a business.
5) Market : a place where buyers and
sellers can meet to facilitate the
exchange or transaction of goods
and services.
6) Sanction : a formal decree
especially : an ecclesiastical
decree.
7) Economics : a social science that
focuses on the production,
distribution, and consumption of
goods and services, and analyzes
the choices that individuals.
8) Quota : a limit on the number or
amount of people or things that are
allowed a quota on imported goods
9) Tariff : a tax imposed by a
government on goods and services
imported from other countries that
serves to increase the price and
make imports less desirable, or at
least less competitive, versus
domestic goods and services.
10) Politics : the activities associated
with the governance of a country or
area, especially the debate
between parties having power.
េិកាពាកយគនលឹឹះ
Key Terms

18. េំនួរពង្ងឹងពុទធិ
Comprehension Questions
1. What Is Demography?
2. Why Is Demography Important?
3. How Will You Use This Information
to apply in the real situation?

19. Write a reflection on this
Chapter through your
perspectives.
1. Complete it in Journal
2. Write a short-essay as
reflection above
(1 page)
3. Show about: What can
you achieve from this
lesson? How can you
apply in real life?
4. Submission: Next week
Following these
requirements:
េ
ូ មតាក្
់ តែងេំសេរអំពី ការឆ
្ លុះ
រញ្
ច ំងស ើជំពូ ក្សនុះ តាមរយៈ
គំនិែផ្ទ
ា ់ខ្
្ ួនររេ់អនក្។
អនុវែតតាមែប្មូវការទំងសនុះ៖
1. រំសពញវាសៅក្
ន លងទិនានុរបវែតិ
2. េរសេរអែថរទខ្លីជា ការឆ
្ លុះ
រញ្
ច ំងខាងស ើ
(១ទំព័រ)
3. រង្ហ
ា ញអំពី៖ សែើអនក្អាច
េសប្មចបានអវីខ្លុះពីសមសរៀន
សនុះ? សែើអនក្អាចអនុវែតក្
ន លង
ជីវ ិែពិែសោយរសរៀរណា?
4. ការោក្់ប្រមូ ៖ េបា
ត ហ៍
កិចចការ្ទឹះ/ ទិនានុបបវត្តិ
Homework / Journal

20. េុខ្េបាយទំងអេ់ោ
ា !
Have a very nice day !
THANKS FOR
YOUR ATTENTION
អរគុណ
េង្ាប់
ការយកចិត្ត
ទុកដាក់