Demography & Population AGENDA Population Line up What is demography? World Population Graphing Activity Population Trends TED TALK Technological Change and Population Growth (Jigsaw)

Population Is the number of people living in a space Population rates change overtime due to birth rates, death rates, immigration and emigration In order to understand population changes we must learn about a fascinating subject called DEMOGRAPHY

Demography Study of human population Important tool for government and business as they rely on demographic data to help them predict future Helps explain cause and effects of population change within local communities, across Canada and throughout the rest of the world 90% of human population occupies 20% of Earths land area.

World Population Graphing Activity Using the chart on the right “World Population growth since Common Era” Using a line graph, graph the data Y-axis = Population X-Axis= Date (graph every other date) Answer questions 2, 3, 4, 5a, b) I

The Population Explosion (1 st Trend) Population explosion that began in latter half of 1600’s and accelerated through 1900s and into the 21 st century the worlds population reached 3 billion 40 years later, in 1999, the population had doubled to 6 billion Consider what effect this growth had on People Governments Economic systems in the letter half of the 20 th century In 20 years the worlds population had to provide for twice as many !

The Declining Growth (2 nd Trend) At first it appears the decline in the worlds growth rate since 1980 seems insignificant Reduction from 2.31 percent in 1980 to 1.25 in 2007 seems small Actually 1.25 is considered a high rate of growth Magnitude of decline is slightly hidden by the fact different countries of the world were experiencing two different population trends

TED TALK- Hans Rosling on Global population growth bal_population_growth.html bal_population_growth.html

Technological Change and Population Growth At different times in human history, revolutionary discoveries have produced changes in the way people live and the carrying capacity of Earth Carrying Capacity  # of people that the worlds recourses can support using the technology that exists at that time We will learn about relationships among technology, lifestyle and population

Jigsaw Activity