Welcome! Please get out objectives #9-17 for a stamp. Use a different colored pen to add new insights to your objectives.

4th period Set up an account at www.edmodo.com APES 4th pd join url: edmo.do/j/kmzbmf Password: 37xgj2 Picture needs to be time stamped 9/6/13 for full credit.

5th period Set up an account at www.edmodo.com APES 5th pd join url: edmo.do/j/ege75u Password: u4p7t8 Picture needs to be time stamped 9/6/13 for full credit.

6th pd Set up an account at www.edmodo.com APES 6th pd join url: edmo.do/j/mft7d3 Password: 8zzbxx Picture needs to be time stamped 9/6/13 for full credit.

Reading skills and graph interpretation

Demographers use histograms Graph of age distribution at particular time Cohort size Male vs. female Pre-reproductive Reproductive ages Post reproductive

Cohorts move up graph as they age – US baby boomers (1946-1964)

US generations Baby boomers (1946-1964) X generation/ baby bust – (1965-1976) Echo boom / Generation Why (Y) (1977-2000) Millennia generation (2000-2010) Social and economic considerations: Geriatric or infant health care? Education or retirement spending?

Histograms can also be used to predict future population trends based on an important assumption

Check for understanding What is the name of these graphs? What do the vertical thirds represent? What do the two sides represent? Which cohort would tell you about IMR? What aspect do you consider when predicting future population trends? What assumption is made in making future populations with these graphs?

The second important graph

Check for understanding Why does death rate fall with industrialization? Why does birth rate fall? Why does death rate fall first? At what two points is growth stable? How many siblings do you have? How many siblings for each of your parents? How many siblings for each of your grandparents?

Check out these histograms http://www.census.gov/ipc/www/idb/informationGateway.php