Factors Affecting Population Growth

9th Gradeβ€’75 minutesβ€’Standard 9 - Use mathematical comparisons and visual representations to support or refute explanations of factors that affect population growth.

Learning Objective

I can use graphs to explain how different factors affect population growth.

Key Concepts

Population pyramids divide data by gender, with females on one side and males on the other, and show population numbers for each five-year age interval.

Rwanda's population pyramid shows a fast-growing country, while Japan's shows a population that will begin to decline as fewer people reach reproductive age.

Countries in advanced stages of industrialization reach a point where both birth and death rates are low, and the population remains stable or even begins to decline.

Practice Questions

This lesson includes 12 practice questions to reinforce learning.

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1. What type of graph is used to represent the internal distribution of a population by age and gender?

2. What are the three main age groups demographers use when analyzing population pyramids?

3. Explain how a population pyramid can be used to predict future population trends.

...and 9 more questions

Educational Video

Population pyramids: Powerful predictors of the future - Kim Preshoff

TED-Ed

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