Friday's lesson - question on migration
On Friday, we did some practice for a possible exam question on migration, using the example of rural-urban migration. We based our extended writing on a question from the 2013 exam paper and went through how to construct an excellence answer. Key points for this can be found by clicking HERE to access the Power Point we went through.
After we had written our answers, these were swapped with the person next to you to be marked. In the marking process you were looking first to underline specific evidence (place names, statistics, numbers). Then, you were to read through the answer looking to see if they had DESCRIBED (single tick given) or EXPLAINED (double tick given). Remember to look for those key words, describe and explain when reading exam questions.
DESCRIBE = say what is there
EXPLAIN = what is there AND why
Excellence answers included 4-5 pieces of relevant specific evidence and had 3 to 4 double ticks. Most people seemed to get Merit and Excellence and after checking through some of your peer marking I reckon you were pretty spot on, awesome work!
Today's lesson - Population Growth
Today you were lucky enough to experience another teacher's perspective on population concepts as Mr Whipp took today's lesson! The purpose of today's lesson was to look at how and why populations grow over time. We started with a quick recap of key population terms, 2 new terms were introduced and these are below.
Natural increase: The difference between the birth and death rates. If the birth rate is greater than the death rate the population will grow whereas if the birth rate is lower than the death rate the population will decrease
Replacement level: When the birth rate and death rate match each other, meaning the number of babies born will be enough to replace the number of people dying.
Then we checked out a clip which looked at how the world's population has grown over the last 2 thousand years. If you missed it or wanted to watch it again, click HERE. The best bit to watch is from about 2.10-4 minutes. This was to get you thinking about what factors might increase or decrease birth rates and death rates.
FACTORS AFFECTING DEATH RATE
- Improved medical care - this could include vaccinations, more hospitals, higher number of doctors, greater availability and improvement of drugs and scientific inventions
- Improved sanitation and water supply
- Improvements in food production – quality and quantity
- Improved transport to move food
- Decrease in infant/child mortality, less need to have so many children as not as many will die before they are 5
FACTORS AFFECTING BIRTH RATE
- Family planning, contraception - government initiatives e.g. China's one child policy
- Lower infant mortality rate so less reason to have such large families
- Education of society as a whole, better to have fewer kids so that you can improve your standard of living
- Equality of women, so less need to have a large family to ensure sons
- Increased desire for material goods, if you have less kids it means you can buy more things!
- Industrialisation - more jobs in services and factories so less need to have more kids to work on farms
- Change in traditional attitudes
Click HERE if you want to watch a video where Swedish statistician Hans Rosling looks at the relationship between religious beliefs and birth rates and what impact this may have on global population growth. Fascinating stuff!
Phew! That was a lot of information! Hope you enjoyed this lengthy blog post - if you made it to the end, see you all tomorrow for some good learning about the Demographic Transition Model.
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