1. OBSERVE THESE PICTURES
1970
2010
1965 2012

2. 1970-1980

3. 2012

4. YOUR SCHOOL!!
1968
1977
2010

5. POPULATION
POPULATION: Number of people who live in an area.
There are different ways to classify the population
ECONOMIC
AGE LOCATION ACTIVITY

6. AGE
We can classify the population by age
Young people Adults Seniors
Children and people who are people who are
adolescents sixteen to sixty- sixty-five or older
(< 18) four ( 16-64) (>65)

7. LOCATION
There are two types of population:
Rural populations Urban populations
People live in small People live in large
villages or towns cities

8. ECONOMIC ACTIVITY
We can classify the population by economic activity:
Active Population Inactive Population
People work and earn a People don´t work and don´t
salary. earn a salary (not legal
People who are unemployed working age, people who are
but they are looking for a job. ill and so on).

9. POPULATION CHANGES
The number of inhabitants in a place changes
continually.
Some people:
are born die
and
arrive or leave to another countries..
• Census is a survey of all the people in the country.

10. If we look at the birth rates, the death rates and the
inmigration and emigration we will see that the
population can increase or can decrease.
Positive natural increase Negative natural increase
More people are born than More people died that are
die. The population grows. born. The population
decreases.

11. MIGRATION
There are people who leave their homes to live in
another place. This is called migration
Why do they leave their homes?
Natural causes: Floods, Social factors: War, political
earthquakes, droughts and religious problems or
some problems to find
a job.

12. TYPES OF MIGRATION
Internal migration: People leave their homes within
the same country.
Why people leave their homes?
The number of jobs in rural areas decreases.
Young people find better opportunities to study,
work and live in cities.

13. International migration: people migrate from one
country to another

14. WHAT´S THE DIFFERENCE?
– Emigrants: People who leave a country.
– Immigrants: People who arrive in another country.

15. POPULATION DISTRIBUTION
Some countries and regions are more populated than
others because of
job opportunities,
a healthy climate and
good services.

16. Population density shows us how populated an area is.
We calculate the population density by dividing the
total number of inhabitants by the size of the area they
live in.
High population density Low population density