Population Growth
Understanding Demographic Trends and Their Impacts
Population growth focuses on how and why populations increase, slow down, or decline over time. Learners need to understand the key indicators, the Demographic Transition Model, and how growth links to development and resource use.
Key Indicators and Formulas
Population growth is primarily assessed through three key indicators:
Birth Rate
Number of live births per 1,000 people per year
Death Rate
Number of deaths per 1,000 people per year
Natural Increase
Population growth rate excluding migration
Net Migration
Immigrants - Emigrants
Quiz 1 - Key Indicators
What is the formula for natural increase?
The Demographic Transition Model (DTM)
A theoretical framework explaining how populations evolve as countries undergo economic development.
High Stationary
High birth & death rates -> stable, low population
Pre-industrial societies
Early Expanding
Death rates fall, birth rates high -> rapid growth
Improving healthcare
Late Expanding
Birth rates fall -> growth slows
Education, family planning
Low Stationary
Low birth & death rates -> stable population
Developed countries
Declining?
Birth rates below death rates -> decline
Japan, Germany
Quiz 2 - Demographic Transition
In which stage do death rates fall while birth rates remain high, causing rapid growth?
Factors Affecting Population Growth
Medical Factors
Advances in healthcare, vaccinations, improved nutrition -> lower death rates, increased life expectancy.
Economic Factors
Industrialization, urbanization, economic development -> smaller family sizes as families prioritize economic stability.
Political Factors
Government policies (e.g., China's One-Child Policy), conflicts, wars affect birth rates, death rates, and migration.
Quiz 3 - Factors
Which factor includes the impact of education for women on birth rates?
Overpopulation and Carrying Capacity
Overpopulation
When the number of people exceeds available resources (food, water, land). Leads to environmental degradation, resource depletion, and increased competition.
Quiz 4 - Overpopulation
What term describes the maximum population an environment can sustain indefinitely?
Practice & Assess
Test your knowledge of population growth with these interactive games.
Match - DTM Stages
Fill - Birth Rate
Birth rate is the number of live births per ______ people per year.
Fill - Carrying Capacity
Carrying capacity is the maximum population size an ______ can sustain.
Word Scramble
T I B R H
Key Terms
Key Recap
For revision, learners should know the growth indicators, the stages of the Demographic Transition Model, and the meaning of carrying capacity. The most important skill is being able to explain how population growth links to development and pressure on resources.
