population pyramidsruestocsb.weebly.com/uploads/2/7/7/6/27763107/population_pyramids.pdf · what is...
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![Page 1: POPULATION PYRAMIDSruestocsb.weebly.com/uploads/2/7/7/6/27763107/population_pyramids.pdf · WHAT is a population pyramid? ... Recognise SHAPES of population pyramids. IMPORTANCE of](https://reader030.vdocuments.us/reader030/viewer/2022040910/5e8471e0657df363d563228a/html5/thumbnails/1.jpg)
POPULATION PYRAMIDS
![Page 2: POPULATION PYRAMIDSruestocsb.weebly.com/uploads/2/7/7/6/27763107/population_pyramids.pdf · WHAT is a population pyramid? ... Recognise SHAPES of population pyramids. IMPORTANCE of](https://reader030.vdocuments.us/reader030/viewer/2022040910/5e8471e0657df363d563228a/html5/thumbnails/2.jpg)
Objectives
❧ WHAT is a population pyramid? ❧ HOW to read a population pyramid? ❧ Recognise SHAPES of population
pyramids. ❧ IMPORTANCE of population
pyramids.
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What is a population pyramid?
❧ It is a diagram that gives information about the proportion of males and females in each age group.
❧ Also shows: - proportion of young people (0 -14 ) - proportion of working people (15 – 59) - proportion of elderly people (60+)
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What is a population pyramid? Vertical Axis - Age Groups
Horizontal Axis – Percentage / number
Young dependents
Working population
Elderly dependents
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How to read a population pyramid?
❧ Read the title e.g. country or city or racial group
❧ Comment on general shape of the pyramid
❧ Note the proportion of people in various age groups
❧ Note the sex ratio ❧ Interpret the data
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Types of Population Pyramid
1. Triangular-shaped 2. Beehive-shaped Pyramid 3. Rectangular-shaped Pyramid Shape of pyramids is controlled by
● births, ● deaths, & ● migrations.
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Triangular-shaped Pyramid (Broad-based Pyramid)
![Page 8: POPULATION PYRAMIDSruestocsb.weebly.com/uploads/2/7/7/6/27763107/population_pyramids.pdf · WHAT is a population pyramid? ... Recognise SHAPES of population pyramids. IMPORTANCE of](https://reader030.vdocuments.us/reader030/viewer/2022040910/5e8471e0657df363d563228a/html5/thumbnails/8.jpg)
Broad-based Pyramid Title: India, 2000 Shape: Broad Base - high birth rates Narrow Top - small elderly pop
- high death rate Proportion: - Large proportion of young
- high young dependency ratio
Sex Ratio: Balance pyramid - Balance sex ratio
![Page 9: POPULATION PYRAMIDSruestocsb.weebly.com/uploads/2/7/7/6/27763107/population_pyramids.pdf · WHAT is a population pyramid? ... Recognise SHAPES of population pyramids. IMPORTANCE of](https://reader030.vdocuments.us/reader030/viewer/2022040910/5e8471e0657df363d563228a/html5/thumbnails/9.jpg)
Indonesia 2000
Malaysia 2000
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Beehive-shaped Pyramid
![Page 11: POPULATION PYRAMIDSruestocsb.weebly.com/uploads/2/7/7/6/27763107/population_pyramids.pdf · WHAT is a population pyramid? ... Recognise SHAPES of population pyramids. IMPORTANCE of](https://reader030.vdocuments.us/reader030/viewer/2022040910/5e8471e0657df363d563228a/html5/thumbnails/11.jpg)
Beehive-shaped Pyramid Title: Singapore, 2000 Shape: Rocket-shaped / Narrow Base
– Low Birth Rates, Slow pop growth Proportion: Large proportion of working
population, 15-59 yr old - large group of economically active pop
Sex Ratio: Balanced pyramid
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Hong Kong 2000
Taiwan 2000
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Rectangular-shaped Pyramid
![Page 14: POPULATION PYRAMIDSruestocsb.weebly.com/uploads/2/7/7/6/27763107/population_pyramids.pdf · WHAT is a population pyramid? ... Recognise SHAPES of population pyramids. IMPORTANCE of](https://reader030.vdocuments.us/reader030/viewer/2022040910/5e8471e0657df363d563228a/html5/thumbnails/14.jpg)
Rectangular Pyramid Title: Netherlands, 2000 Shape: Rectangular-shaped - Zero Pop Growth Narrow Base - Low Birth Rates
- Life-expectancy is high e.g. 80+ - Low death rates
Proportion: Bars of equal length - Balance Proportion Sex Ratio: Balance pyramid - Balance Sex Ratio
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UK 2000
Netherlands 2000
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Population Pyramids in Transition
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Each pyramid tells a story about the
past, present & future of a country & its people.
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Importance of Population Pyramids
❧ Policy Planning ~ future housing estates ~ future schools ~ future jobs ❧ Comparison with other countries
~ developed (US) vs developing (India)