From memory: Demographic Transition Model
Can you remember what the pattern is like at each stage? And the reasons for it?
Statement Which stage on the DTM?
Why here? PROVE IT.
Jack realises there is not enough farmland available in his village for everyone to grow what they need to survive. He and his wife and 5 children migrate to another area where there is fewer people & more land available.
Hospitals are overcrowded with high waiting lists due to an increased demand for joint replacement surgery or to treat geriatric illnesses.
Parents of children face difficulty placing their child in schools close to home due to conflict and waiting lists to attend a school of their choice.
Energy bills in winter rise each year due to pressure on the energy grid to provide enough gas and electricity to meet consumer demand.
The population remains reasonably steady despite fluctuations in birth and death rate.
You must decide….• Where on the Demographic Transition Model you would put each statement.
You must be able to…• Justify your decision by referring to birth rates, death rates or population changes.
e.g. This is because birth rates are high but death rate is falling so people live longer so natural increase is occurring and exponential growth. This means there is not enough farmland or resources because the total population is now too high, with overcrowding.
Stage 2
What is this?
How and why does the age and gender structure of populations vary?
Population Pyramids, comparisons of LEDC’s v’s MEDC’s
and changes over time
So what are population pyramids?
• http://www.youtube.com/watch?v=sSoSYm4AOls
Economic development increases…..
Not all populations look like pyramids
GCSE Geography OCR BPg 134-135Activities 1, 2b, 3, 4, 5
Homework: Overpopulation in India
GCSE Geography OCR BPg 136-137Activities 1-4
Link to examples of population pyramids
Describe differences between LEDC and MEDC.Describe changes over time.
Suggest reasons for these changes, linked to development indicators.
Describe the changes over time. Suggest possible consequences.
Describe the distribution;- Ages- Gender- Time
Suggest reasons for changes over time.
Explain why gender and age balance varies.
Write a postcard or love letter between the MEDC-LEDC 2030 pyramids.
Must include reference to:Birth rateDeath rateMigrationDependency ratio Infant mortalityLife expectancyGender balanceCompare your quality of life.
6
Refer to example India
R.E.A.D. the graph and
explain
Link to development
data
Compare and contrast data
Describe and explain the
shapes of the graphs (READ)
Write in full sentences using
PEEL
5
Compare the gender balance
Calculate the dependency
ratio
Suggest reasons for the
distribution of ages / genders
Suggest how the graphs may
change in future
Link to a specific stage on the
DTM
Explain why each graph fits its stage of the
DTM
4
Suggest reasons for the
distribution of ages / genders
Explain what dependency
means
Consider what proportion are youthful (0-14)
dependents
Write in full sentences using
PEEL
Link to real fact from the graph (e.g. males 0-4
….)
Describe the shapes of the graphs (READ)
3
Explain why each graph fits its stage of the
DTM
Suggest reasons for the
distribution of ages / genders
Link to a specific stage on the
DTM
Consider what proportion are
ageing (65+) dependents
Suggest how the graphs may
change in future
Link to real fact from the graph (e.g. males 0-4
….)
2
Link to real fact from the graph (e.g. males 0-4
….)
Link to a specific stage on the
DTM
Suggest how the graphs may
change in future
Link to development
data
Explain why each graph fits its stage of the
DTM
Explain why each graph fits its stage of the
DTM
1
Write in full sentences using
PEEL
Explain why each graph fits its stage of the
DTM
Link to real fact from the graph (e.g. males 0-4
….)
Include key terms, e.g.
infant mortality, etc,.
Consider the impact on the
national economy
Link to development
data
1 2 3 4 5 6
Compare and contrast an MEDC and LEDC population structure. Suggest possible reasons for the structure, how it may change in future, and what potential problems there may be based upon
the distribution of ages / genders.