how the world’s population has increased throughout time at an uneven and fluctuating rate the factors that influence the rate of population change how the demographic transition model can help us to understand population change how a population pyramid shows the gender and age structure of a country about population change in Ireland about population change in a developing country.
ICE-BREAKER ACT VITY
With the student next to you, answer the following questions: (a) What is the population of Ireland? (b) What is the population of your county? (c) What is the population of Dublin City? (d) What is the population of the United Kingdom? (e) What it the population of Sierra Leone? Can you identify Sierra Leone on a world map?
World population growth Learning Intentions
In this section, you will learn: zz
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about the world’s population growth throughout history
how to calculate population change. There are more than 7.6 billion people living in the world today.
There weren’t always 7.6 billion people living in the world. If you examine Figure 18.1 on the next page you will see that the world’s population grew at an uneven rate, right up until the 1700s. When population figures increase and decrease at an uneven rate like this, it is called fluctuation.
