Today in class we took notes and talked about world war two. The notes that we took are below.
- Natural increase-About 82 million people are added to the population of the world annually
- more then 95 percent of the natural increase is in developing countries
- Total fertility rate is TFR
- TFR for the world is 2.5
- Measure also used by geographers to measure number of births in a society
- Defined as the average number of children a women will have throughout her childbearing years(15-49)
- Infant mortality rate is IMR
- Measure used by geographers to better understand death rates in a society
- Defined as the number of deaths of infants under one year of age, compared with total live births
- Usually expressed per 1,000 births rather then a percentage
- IMR is 5 in developed countries and 80 in sub Saharan Africa
- Developed countries have lower rates of natural increase, crude birth, total fertility, infant mortality
- Developing countries have higher rates of crude birth, total fertility, infant mortality
- A special bar graph known as a population pyramid can visually display a country's distinctive population structure
- Dependency ratio is defined as the number of people who are to young or to old to work, compared to the number of people in their productive years
All in all class was pretty good today and I liked how all of the classes were only 45 minutes today. For some reason a 10 minute difference makes the classes feel like they are going by so much faster.
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