Understanding Population Changes and the Demographic Transition Model (DTM)

Understanding Population Changes and the Demographic Transition Model (DTM)

Learning Objectives

• Understand the factors influencing population changes.
• Describe the stages of the Demographic Transition Model and how they relate to population growth.
• Recognize the difference between natural change and overall population change, including the effects of migration.
• Identify different methods of population management and their implications.

What do you already know about population changes and the Demographic Transition Model?

Factors influencing population changes

Population changes influenced by birth rates, death rates, and migration.

Explanation of the Demographic Transition Model

DTM illustrates the relationship between birth rates and death rates, excluding migration.

Natural change vs. overall population change

Natural increase occurs when birth rate exceeds death rate.
Natural decrease happens when death rate exceeds birth rate.

Methods of population management

Population management methods can encourage higher birth rates or aim to limit them.

Definition List

Demographic Transition Model (DTM): A theoretical model that describes the transition from high birth and death rates to low birth and death rates as a country develops.
Natural change: The change in population size determined by the difference between birth rates and death rates.
Natural increase: A situation where the birth rate is higher than the death rate, leading to a growth in population size.
Natural decrease: A situation where the death rate is higher than the birth rate, leading to a reduction in population size.
Migration: The movement of people into (immigration) and out of (emigration) a country, affecting its population size.

Write down 3 things you learned in this lesson.

Have students enter three things they learned in this lesson. With this they can indicate their own learning efficiency of this lesson.

Write down 2 things you want to know more about.

Here, students enter two things they would like to know more about. This not only increases involvement, but also gives them more ownership.

Ask 1 question about something you haven't quite understood yet.

The students indicate here (in question form) with which part of the material they still have difficulty. For the teacher, this not only provides insight into the extent to which the students understand/master the material, but also a good starting point for the next lesson.