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  Population Structure  
     
 
  • You should know that Population Structures vary according to the age and sex group compositions of the population.

  • You should know that the Population structure is usually shown on a diagram called the population pyramid.

  • You should understand that each stage of the DTM is characterised by a distinctive population pyramid shape.

  • You should be aware of CBR and CDR figures for specific countries at each stage of the DTM using up to date estimated population data.

  • You need to be able to match the data to describe the structure of the population pyramid.

  
     
  Question: Jan 2010  
  Explain how and why population changes naturally over time. (10)  
  Guidance  
  Click on the Pic.  
 

NGfL Cymru
     
  Click on the Pic.  
 

BBC Scotland
     
  Model Pyramid Shapes  
  Adapted from Wikipedia
     
  Matching Pyramid Shape to DTM Stage (Click on the Pic)  
 

BBC Scotland
     
  Ready, Steady, Teach. Add 4 significant annotations.  
 

 
     
  Individual Activity:  
  1. Complete the exercises linked below. Print Screen your finished version. Plenary Activities 1 and 2. NGfL
   
  http://www.ngfl-cymru.org.uk/vtc/demographic_trans/eng/Introduction/Plenary.htm  
   
  http://www.ngfl-cymru.org.uk/vtc/demographic_trans/eng/Introduction/Plenary.htm  
  2. Choose 4 countries representing Stages 2 - 5 of the DTM [this might be Uganda or Zambia for Stage 2; China for Stage 3; UK for Stage 4; Russia or Germany for Stage 5]
Use the 2010 World Population Data Sheet to complete the data required for a table like this:		  
 
Stage Country CBR CDR NI RateNI IMR LE TFR %<15 %65+ One Other data
2                      
3                      
4                      
5                      
 
  Where CBR = Crude Birth Rate, CDR = Crude Death Rate, NI = Natural Increase/000, Rate NI = Natural Increase as %, IMR = Infant Mortality Rate, LE = Life Expectancy, TFR = Total Fertility Rate, %<15 = % aged under 15, %65+ = % aged over 65, One Other data - you choose and name one other piece of relevant data.  
     
  3. Visit The US Census Bureau and look up the 'Country Summaries' for your selected countries. They give good population pyramid diagrams. Copy the relevant pyramids (or sketch them) and then annotate a description and explanation of the shape indicating how it is representative of a particular Stage of the DTM.