Contrast HDCs and LDCs. Give at least 3 differences between the two. Objective: Students will create and analyze population pyramids to be used to explain how and why populations change over time. Drill: 12/13/16 Contrast HDCs and LDCs. Give at least 3 differences between the two. TURN IN MATERIAL WORLD TAKE OUT DEMOGRAPHIC TRANSITION NOTES

HDC LDC

Agenda Pyramid/Demographic Notes Pyramid Types and Discussion Population Pyramids Activity Analysis – done independently (due at end of class) Chapter 11 Notes Due – 12/15/16 (b-day) and 12/16/16 (a-day) Unit Test (Chapters 6-9 and 11): 12/19/16 (B2) and 12/20/16 (A2)

Population Pyramids Examine the example of the population pyramid Be prepared to share observations How is it set up? How could it be useful? How could it be used to make predictions about a population?

Age Structure Diagrams

Stages of the Demographic Transition

Stage 1: Pre-industrial Harsh living conditions lead to: High birth rate High infant mortality rate High death rate Because of this, these is little population growth Few remote groups still exist in this stage

Stage 2: Transitional Industrialization begins Food production rises/health care improves Death rates drop, but birth rate remain high Because of this, population grows rapidly

Stage 3: Industrial Stage Industrialization is wide-spread. Birth rates drop and eventually approaches the death rate. Better access to birth control Decline in infant mortality Increased jobs/education for women Population growth continues but is slower, fluctuating at times.

Stage 4: Post-Industrial Birth rate declines even further, equaling the death rate and thus reaching zero population growth. Most population experts would like to see all of humanity reach this stage – in order to see a decrease in world population numbers.

Activity In groups of 3, head the lab stations Each group member will be creating a population pyramid for a specific country. You have 20 minutes to create these. After 20 minutes – you will combine your groups of 3 with another and compare the six graphs that were made between the groups.

Questions that will be discussed Be ready to share these as a class: Can you tell if the country has a high/low fertility rate from the graphs? Which countries do children make up the largest percentage of population? Can you tell which countries have more people from the graphs? How so? Which countries graphs look most like a typical pyramid? What does that indicate about population growth rate? Which appears to have the slowest rate of population growth?

Analysis/Conclusion You will now have 20-25 minutes to complete the analysis and conclusion. Please work on this independently. It is due at the end of the class period.

Summary How can population pyramids be used to explain how populations change over time? REMEMBER: Chapter 11 Notes Next Class Unit Test: 12/19/16 (B2) & 12/20/16 (A2)