For both 12A and 12CD: Read "Population: 7 Billion" from the January 2011 issue of National Geographic. Be sure to check out some of the links to pictures as well. If the above link doesn't work then try this or this.
12A: Take notes on what you read and then complete the remaining questions for Assignment 27B. Some extra credit is available to those who determine the 95% confidence interval for their data and the sample data.
Think about:
- What concerns are associated with humankind's rapid population growth?
- Is our growth occurring equally everywhere on Earth?
- What, if anything, is being done to deal with population growth?
12CD: Read the article and complete Assignment 27B. Remember that your answer to #5 will be collected and scored.
Assignment 27B "Capturing School of the Future” Analysis and Reflection
Answer all of the following questions to the best of your ability. Use details, vocabulary, and examples whenever possible.
1. List potential sources of error that could have affected your estimation of the population.
2. What difficulties did you encounter with this experiment? What additional difficulties might be present in a field study?
3. Was your estimate close to the actual population size? If no, how could the accuracy of the activity be increased?
4. Why would a scientist want to be able to estimate population size of different organisms?
5. TO BE COLLECTED AND SCORED…Discuss one or two of the most meaningful errors and the specific impacts it/they may have had on the data and/or how you interpreted it. What changes did/would you make and why? Discuss each change made or potential change and predict how it would specifically change the data.
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