"Population and Race" Residents and Settlement PPT Courseware 6

Description

"Population and Race" Residents and Settlement PPT Courseware 6

1. Use maps and information to describe the characteristics of world population growth, and draw relevant columnar line charts based on relevant demographic data.

2. Use maps to describe the characteristics of world population distribution, analyze the natural influences that affect world population distribution, and be able to calculate population density.

population size

The 7 billionth human being is born on earth

October 13, 2011 "China News Network"

The world welcomed its 7 billionth population on the 31st of this month, and in the early morning of the 31st, a baby who will become one of the symbolic 7 billionth member of the world was born in the Philippines. Surrounded by the media spotlight, a baby girl named Danica Camacho was born at a hospital in Manila, the capital of the Philippines, 2 minutes before midnight on the 31st. She will be one of several babies announced globally to become the symbolic 7 billionth person in the world's population.

1. Growth of world population

(1) Characteristics of world population growth in various historical periods (time)

Do it

1. At present, the world has a population of more than ______ billions, and a day of 7 billion people is ____________.

2. Before the 18th century, the population growth was ____________, and after the 18th century, the population growth was ______. Population growth after the 20th century ____________.

think about it

What determines population changes?

Determined by the number of babies born and deaths each year.

What terms and formulas are used to express it?

birth rate, death rate

population growth rate

Birth rate = (number of babies born in one year/total number of people)*100%

Mortality rate = (number of deaths within one year / total number of people) * 100%

Natural growth rate = birth rate – death rate

think about it

What do the natural growth rates >0, =0, and <0 mean?

2. Distribution of world population

(1) Representation methods, formulas and calculations of population density

The world's population not only grows at different speeds, but is also very unevenly distributed. Some places are densely populated and some places are sparsely populated.

The first paragraph of the self-study text, answer

What is used to express population density? state definitions and formulas

(2) Characteristics and reasons of population distribution

Require

1. Observe and analyze the characteristics of world population distribution and find out densely populated areas and sparsely populated areas.

2. Discuss what are the main factors affecting the distribution of world population.

3. Population issues

1. Problems caused by excessive population growth.

(1) Resources are destroyed and the environment deteriorates

(2) Cause many social problems

2. Problems caused by too slow population growth

3. Countermeasures

①Control the population and improve the quality of the population

②Population growth must be compatible with social and economic development, and in harmony with the environment and resources

summary:

In this lesson we learned two basic knowledge of population geography: population growth and population distribution. Among them, population growth is an important symbol for understanding the dynamics of population quantity. The speed of population growth directly affects social and economic development and also shapes the appearance of population distribution; the natural growth rate of population and population density are to quantitatively explain the status of population growth and population distribution. . The distribution of population is the result of a combination of factors such as natural conditions and socioeconomic conditions.

Operation:

①Basic Training Chapter 4 Section 1

② Preview the content after the first section: different races

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For more information about the PPT courseware "Residents and Settlement Population and Race", please click the "Residents and Settlement ppt Population and Race ppt" tab.

"Population and Race" Residents and Settlement PPT Courseware 8:

"Population and Race" Residents and Settlement PPT Courseware 8 Teaching Objectives: 1. Understand the changing trends of world population, and master the problems and countermeasures caused by too fast or too slow population growth. 2. Learn to calculate the natural population growth rate and population density. 3. Master the world population distribution..

"Population and Race" Residents and Settlement PPT Courseware 7:

"Population and Race" Residents and Settlement PPT Courseware 7 Course Standards 1. Understand the characteristics of population growth and distribution. 2. Understand world population issues and their impact on society, the environment and the economy. 3. Understand the characteristics and distribution of the three major human races in the world. Knowledge and Abilities 1. Learn...

"Population and Race" Residents and Settlement PPT Courseware 5:

"Population and Race" Residents and Settlement PPT Courseware 5 1. Calculation of world population growth: Number of babies born in 1 year/Total population = birth rate Number of deaths in 1 year/Total population = Death rate Birth rate - Death rate = Natural growth rate 2. Distribution of world population..

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Update Time: 2024-10-21

This template belongs to Geography courseware People's Education Edition Geography for Grade 7 Volume 1 industry PPT template

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