Looking at Unit 1.3, you can see that again, this is a smaller unit of work. The focus of this will be the population pyramid (a demographic model) and how it can be used to predict future population change ..... and associated problems. One case study necessary here. Look out for that symbol. 

​Age / Sex Pyramids
​
​(AKA Population Pyramids) 
Objective: To be able to effectively read and interpret population pyramids. 


Task 1 - Your teacher will give you some key information on how to read and describe population pyramids. Use the Task 1 sheet to the right to take notes. See this example.  


Task 2 - Download the worksheet above and complete all the activities set out. 
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Task 3 - Age Sex Structure  - Draw your own.

You are going to complete a data task to construct your own age / sex structure for France.

You will need a printed out copy of the worksheet to the right. 


Task 4 -  Complete the worksheet below using your knowledge and understanding of what you have learnt about Population Pyramids so far. ​

A High Dependent Population
​


Objective: To find out what causes a youthful population structure to occur and to discover what happens when a country has a high dependent population (in this case - too many young people). 
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Dependent people can be classed as those on a population pyramid who are either under the age of 15 (young dependents) or over the age of 65 (old dependents). This is because people in these age categories generally don't work and are  supported by people in the economically active sector aged 16-64.

​This is quite a general assumption and there are many factors that might mean that children may actually work before 16 or that elderly people still work into their 70's. Study the population pyramid for The Gambia above. The wide base shows a high fertility rate and a high youthful population (high young dependents). 

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Task 1 - Download the worksheet above and complete all activities, apart from the 7 mark question at the end. 


Task 2 - Now download this fact sheet on the Gambia and read the content carefully. Also, watch the video below created by an IGCSE student.  Now complete the following 7 mark Paper 1 question in the space provided on the worksheet. 


For a named country you have studied, describe the problems caused by a high dependent population.


Extension Task -  How many children will you likely have in your lifetime? (Geographyalltheway worksheet baby_o_matic.docx here)


​Impacts on Death Rates ​- The Whole Picture
​

In Unit 1.1, we looked at the factors that impact on birth and death rates. We are going to now look briefly at how disease impacts on death rates and can subsequently be seen on population pyramids for some countries, in this case, Botswana.  

Check out the visual below to get an overview of global pandemics and the impact that they have had on death rates around the world. This helps you put in to context the current COVID-19 situation. 

The message back in 1986..... UK & Australia. 


Impacts on Death Rates - HIV / AIDS
​

Objective: To understand the basics of HIV & AIDS, how it effects the body and how it is transmitted from person to person. 

Task 1 - Watch the 'What is HIV' video underneath. 

i. What does HIV and AIDS stand for?  b. How does the HIV virus affect the body?  c. When does HIV become AIDS?  d. Do people die from AIDS? (think carefully about this)

Task 2 - The message now in the 2020's - Watch the 'How is HIV Transmitted' video beneath. 

i. Outline the ways in which HIV can be transmitted.    b. In what ways cannot it be transmitted?
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​Part  2 - The Impact of  HIV / AIDS 

​Around The World
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Task 3 - Watch the YouTube video below.  Pause on 45 seconds. 

i. Why do people react to the man like this? 

ii. How does this relate to AIDS? 

Watch the last few seconds of the video. Did any of you guess that?  

Focus on Botswana
& Its Population Structure


​So how does all of this affect population structures?

​
We are going to be using Botswana as our focus for how AIDS can affect a population structure. Spend 2 minutes exploring Botswana on the Google Map to the right.


Download the task sheet to the right, and complete the first 11 tasks. 
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Make some notes on Botswana's location within Africa and get the key data for life expectancy, literacy rate, GDP per person and its HDI rank. 


Click here to be taken to some familiar population pyramids structures for Botswana. 
All content copyright geographypods unless otherwise stated.