The Demographic Transition Model
Demographic = to do with population
Transition = Change
Model = in Geography, a model is a simplified way of looking at the world to make it easier to understand.
The Demographic Transition Model is a simplified way of looking at how population is changing and has changed around the world. It focuses on birth rates, death rates and natural increase.
Transition = Change
Model = in Geography, a model is a simplified way of looking at the world to make it easier to understand.
The Demographic Transition Model is a simplified way of looking at how population is changing and has changed around the world. It focuses on birth rates, death rates and natural increase.
Definitions
Birth rate
This is the number of live births per years per thousand people. It is calculated by dividing the number of births in a country by the total population and then multiplying by 1000.
Death rate
This is the number of deaths per years per thousand people. It is calculated by dividing the number of deaths in a country by the total population and then multiplying by 1000.
Natural Increase/Decrease
This is the change in the total population of a country because of births and deaths (ie not including migration). If the birth rate is higher than the death rate then the population will increase. If the death rate is higher than the birth rate then the population will decrease.
It's a bit like the bathtub below...
This is the number of live births per years per thousand people. It is calculated by dividing the number of births in a country by the total population and then multiplying by 1000.
Death rate
This is the number of deaths per years per thousand people. It is calculated by dividing the number of deaths in a country by the total population and then multiplying by 1000.
Natural Increase/Decrease
This is the change in the total population of a country because of births and deaths (ie not including migration). If the birth rate is higher than the death rate then the population will increase. If the death rate is higher than the birth rate then the population will decrease.
It's a bit like the bathtub below...
Factors affecting birth rates
Factors affecting death rates
The Demographic Transition Model
1) Use the video on the right to complete the following: a) Write a definition of the Demographic Transition Model b) Turn your page sideways and create a STAGED drawing of the DTM, adding descriptive labels as they appear on the video  you will need to 'pause' the video to give you time to do this. c) Subheading  Limitations of the Model At the bottom of your page, list the two limitations that are explained on the video. 


