How do we show population on a graph

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• How do we show population on a graph?
• What you need to know
• What a population pyramid is and what information
  it shows
• How to read a population pyramid
• Why we need population pyramids
• How the shapes of population pyramids vary
  depending on which country you are in.

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Population StructurePopulation structure can be
shown as a population pyramid,
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• Features of a population pyramid.
• Population is divided into 5 year age groups.
• Population is divided into males and females.
• The percentage of each age /sex group is given.

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This shows death rate and life expectancy.
Shows how many people are working or
economically active. These people support the
young and old dependents.
Shows how the birth rate has changed this is
what it was some years ago.
Shows birth rate and infant mortality
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http//www.statcan.ca/english/kits/animat/pym
a.htm
http//www.iiasa.ac.at/Research/LUC/ChinaFood/data
/anim/pop_ani.htm http//www12.statcan.ca/english
/census06/analysis/agesex/tables.cfmanimations
http//www.census.gov/cgi-bin/ipc/idbpyrs.pl?ctyU
Soutdymax250
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http//uk.youtube.com/watch?vovnvT4DMgoA
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• Describe and explain the main features of the
  population pyramid above. (4marks)

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A good answer?

• This population pyramid has a very wide base,
  showing that this country has a high birth rate -
  probably with more than four children per
  family. The pyramid then narrows in the 5 9
  and 10 14. This is not because birth rates
  were lower in these years but instead because of
  high infant mortality. Then there is a sharp
  indent in the male side from 15 years upwards.
  This could be because there has been a recent
  conflict and men of fighting age have been
  killed. It could also mean that men have migrated
  to other countries to get jobs. The population
  pyramid has a very narrow top showing high death
  rates and low life expectancy. All of these
  factors show that this pyramid is likely to be a
  LEDC.
• This is a good answer in that it does more than
  just describe the main features of the country
  involved. It is OK to say something might have
  caused the indent, as it shows the examiner you
  have understood this feature. The answer also
  mentions the reasons for the very wide base and
  the narrowing of the top which is likely to show
  a low life expectancy.

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http//uk.youtube.com/watch?vovnvT4DMgoA
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http//www.census.gov/ipc/www/idb/ (choose your
country)