What are Population Pyramids

How can we draw a population structure graph

showing gender for a country?

Birth and death rate

• Birth rate = number of people born per thousand of the population each year

• Death rate = number of people who die per thousand of the population each year

UK Madagascar

Birth Rate (per 1000) 12.3 37.1

Death Rate (per 1000) 9.3 7.6

UK Population PyramidWhat does it

show?

See an animation Here

Population Pyramid

• Using the data on your handout to draw the UK’s population pyramid.

How can you ‘read’ a population pyramid?

Population Pyramids

• A population _______ shows the population structure for a country.

Table Pyramid Triangle Graph • The height of the pyramid shows how _____ people live.

The base shows how many babies are _____ each year (birth rate).

The ill long born many killed • Any indents may be from a war or ______ and any

bulges could be from baby booms or _________ coming in (immigrants)

earthquakes tourists Famine migrants education migrants disease animals

Population pyramid for Calcutta

• Complete the A5 Living Graph sheet on Calcutta

Draw a sketch of a pyramid for a MEDC

Draw a sketch of a pyramid for a LEDC

Homework