gcse unit 3
DESCRIPTION
GCSE Unit 3. Models and skills. Economic Change. The Clark-Fisher model showing changes in employment in different sectors as a country develops. Employment structure for selected countries with different levels of economic development. Choropleth map page 70 (Skill book) - PowerPoint PPT PresentationTRANSCRIPT
GCSE Unit 3
Models and skills
Economic Change
The Clark-Fisher model showing changes in employment in different sectors as a country develops.
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Employment structure for selected countries with different levels of economic development.
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Choropleth map page 70 (Skill book)Shaded according to a key
Advantages:easy to completeShows a good visual impression of change over space
Disadvantages:Variations within units are concealedGives a false impression of abrupt changes at boundaries
Pie Chart
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Describe the changes
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Pictogram
Compound line graph
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Changes over timeContinuous dataShows multiple sets of data.
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Divergent bar graph
Population Change
Demographic Transition Model
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The Demographic Transition model P234
The specific characteristics of each stage have to be learned from book
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RAPID GROWTH
• LEDCs e.g. Kenya•Stage 2 of DTM: Decreasing death rate, especially infant mortality. However, narrow top= still shorter life expectancy than MEDCs.•Wide base= large number of dependent children high level of fertility .•Continuous decrease of % of pop for each age group, especially between 0-4 and 5-9 shows that infant mortality is still important
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SLOW GROWTH
• Stage 4 of DTM e.g. USA• Oblong-like structure.• Narrow base: low BR• Bulge between the ages of
about 30 to 50: reflects economic expansion late 1950s and 1960s [baby boom]
• Wider top: long life expectancy [higher for women]
• Ageing population
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NEGATIVE GROWTH
• Stage 5 of DTM, e.g. Germany
• Age group 0-4 less than 5-9:Declining birth rate
• Bulge 25-45 age groups: children of immigrants after the Second World War
• Ageing population: high % of pop above 60, long life expectancy [higher for women]
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HOW TO INTERPRETE A POPULATION PYRAMID
Section B
A Tourist’s World
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Butler model 22
End of unit 3
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