August 29 Chapter 2 Cannon.

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Presentation transcript:

August 29 Chapter 2 Cannon

Please turn in Chapter 2, Key Issue 3 Bellwork 8/27-28 Please turn in Chapter 2, Key Issue 3 Why would a family choose to have 1 or 0 kids? Please, write in complete sentences.

Homework: Chapter 2, Key Issue 4 (8/31) and Map (8/31) Agenda: Notes: Population Structure Population Pyramid Activity Test Corrections Due Homework: Chapter 2, Key Issue 4 (8/31) and Map (8/31)

You will be able to create a population pyramid. Objective: You will be able to create a population pyramid.

Where was the first dinosaur skeleton found? NEW JERSERY! Fun Fact: Where was the first dinosaur skeleton found? NEW JERSERY!

I. Population Structure

A. Vocab Population Pyramid: A bar graph to show population structure by comparing pop. age & sex Cohort: population group unified by the same time constraints CLASS OF 2020

POPULATION PYRAMID VIDEO

b. Dependency Ratio: # of people who are too young/old to work compared to people who can work c. Life Expectancy: the average length of life

2. 3 Types of Pyramid

Why would a population pyramid be useful for human geographers? Discuss Why would a population pyramid be useful for human geographers?

3. Sex ratio: # of males per 100 females in a population

4. Baby Boom: a sudden increase in birth rates for a generation

B. Malthus & Overpopulation Thomas Malthus British, lived in 19th century SAID: Earth’s population is growing faster than its food supply Overpopulation: there are more people than the environment can support

Malthus’s Theory

2. Neo Malthusians Some people still believe this! 1968: Paul Ehrlich

Population Growth 3. Critics Resource Depletion Our resources are expanding Population Growth More population isn’t necessarily bad More people = more innovations

Discuss What do you think? Do you agree with Malthus? Is our growing population ultimately going to doom us or save us?

Ticket out the door Define population pyramid. Discuss the different challenges a country might face based on the shape of their population pyramid.

Population Pyramid Activity http://populationpyramid.net/