LESSON PLAN: Population Density Around the World LEVEL: Advanced POPULATION DENSITY AROUND THE WORLD Related topics: climate, environment, physical features OVERVIEW Students will locate the world’s most densely populated areas and analyze the relationship between Earth’s physical systems and population density. MATERIALS NEEDED • • • • World Population Density map (Home>>World>>Maps for the World>>World Population Density Map: Advanced) World Physical map (Home>>World>>Maps for the World>>World Physical Map: Advanced) World Climate map (Home>>World>>Maps for the World>>World Climate Map: Advanced) World Environments map (Home>>World>>Maps for the World>>World Environments Map: Advanced) ACTIVITIES Activity 1 helps students make generalizations about population density based on comparative data from thematic maps. Activity 2 helps students analyze how the locations of the world’s most populous cities relate to Earth’s physical systems. OBJECTIVES Students will analyze the locations of the world’s most densely populated areas. Students will describe the relationship between Earth’s physical systems and population density. Student will draw conclusions about why some areas of Earth are more densely populated. NATIONAL GEOGRAPHY STANDARDS • • • • How to use maps and other geographic representations, tools, and technologies to acquire, process, and report information from a spatial perspective The characteristics, distribution, and migration of human populations on Earth’s surface The processes, patterns, and functions of human settlement How physical systems affect human systems BACKGROUND INFORMATION During the first 2 million years of human existence, the world population grew at a very slow rate and probably never exceeded 10 million. The development of agriculture (around 8000 BC) caused the growth rate to rise sharply. By the year AD 1, the world population was about 250 million. By 1650 the population had doubled to 550 million, and by 1850 it had doubled again, reaching almost 1.2 billion. Each subsequent doubling has taken only about half as long as the previous one: 100 years to reach 2.5 billion, and 40 years to reach 5.2 billion. A country’s rate of natural increase is determined by subtracting the number of deaths from the number of births for a given period. The world’s fastest-growing countries are found in either Africa or the Middle East. The slowest-growing countries are found in Europe. www.randmcnallyclassroom.com 1 LESSON PLAN: Population Density Around the World LEVEL: Advanced ACTIVITY 1 Have students look at the World Population map and write three generalizations about the locations of the world’s most densely populated areas. [Suggested answers: Most are north of the equator and east of the prime meridian. Most are in Asia and Europe. Most are located near a coast or along a river.] Divide students into three groups. Have one group compare the World Population Density map with the World Climate map. Have another group compare the World Population Density map with the World Environments map. Have the third group compare the World Population Density map with the World Physical map. Each group should write conclusions based on their comparison. Have each group present its conclusions to the class. Based on these presentations, add to the list of generalizations above. [Suggested answers: generally in temperate or tropical climates; generally in or near areas with cropland or grazing land; generally not in mountainous areas] ACTIVITY 2 Have students complete the worksheet titled “World’s Most Populous Cities.” Then have them compare their answers with their generalizations from Activity 1. CONCLUDING AND ASSESSMENT Based on the activities in this lesson, have students write a paragraph describing the relationship between population density and Earth’s physical systems, such as terrain, climate, and natural environments. INTERNET CONNECTIONS Students can find world population data at www.census.gov/ipc/www/world.html. CROSS-CURRICULAR CONNECTIONS Math Have students construct a graph to show world population growth since 1650. ANSWERS FOR STUDENT WORKSHEET 1. Cities tend to be on coasts or on an inland waterway. Few cities are in deserts. Most large cities are not in mountainous regions. Most of the cities are in the Northern Hemisphere because most of the world’s land and people are in this hemisphere. 3. Students should provide a reasonable explanation that includes references to the need to locate cities with access to water and transportation. 2. www.randmcnallyclassroom.com 2 Name: _______________________________________________________ Date: ___________________ AREAS OF POPULATION DENSITY Locate the following cities on a world map then answer the questions below. Rank 1 2 3 4 5 6 7 8 9 10 City Mumbai, India Shanghai, China São Paulo, Brazil Seoul, South Korea Moscow, Russia Delhi, India Karachi, Pakistan Istanbul, Turkey Beijing, China Mexico City, Mexico Population Rank in millions 12 11 11 12 10.7 13 10.2 14 10.1 15 9.8 16 9.3 17 8.8 18 8.7 19 8.6 20 City Jakarta, Indonesia Tokyo, Japan New York City, U.S. Teheran, Iran Cairo, Egypt London, U.K. Lima, Peru Bogotá, Colombia Bangkok, Thailand Rio de Janeiro, Brazil Population in millions 8.4 8.3 8.1 7.8 7.6 7.2 7.0 6.7 6.3 6.0 1. Describe common physical features of the locations in which the cities are found. For example, are there mountains? Is water present? Is the city in a desert? ______________________________________________________________________ _______________________________________________________________________ 2. Are the cities mostly in the Northern Hemisphere or in the Southern Hemisphere? _____________________________________________________________________ How do you explain this occurrence? ______________________________________________________________________ 3. If you were an investor and you were looking for the future site of a large city, where would you buy land? __________________________________________________________________ ___________________________________________________________________ ___________________________________________________________________ 3