Once Stats completes the M&Ms and Water labs, Rob is teaching standard deviation (SD). The TI84 calculates SD. Rob thinks the kids should calculate it manually once to understand variance and just what SD is. Khan Academy has step by step instructions. Rob is using How long does it take you to drive home from school? to review mean, median, and mode, while teaching SD.
Once he finishes this activity, I would like to do the Parking Lot Biodiversity Lab. A biodiversity index examines variance in ecosystems. Another activity for the kids is constructing Population Pyramids or histograms. These two activities show kids how the stat activities are relevant to Ecology and Human Geography. This activity, Power of the Pyramids is excellent. Read the questions. When I use these exercises, we always discuss the implications of countries such as Japan or in Western Europe with low fertility rates AND countries with high fertility rates. My focus is on economic implications, not birth control or ZPG.
This census population exercise comparing states and even cities is excellent.
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