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Simple Population Space Usage part of SISL:2012 Sustainability in Math Workshop:Activities
Students find current values for world and US populations, the area of Texas, and the size of the average house in the USA. Students then look at ratios to assess land usage.
Arctic Sea Ice Extent part of SISL:2012 Sustainability in Math Workshop:Activities
Student teams investigate Arctic Sea Ice by analyzing actual data and making predictions. A worthwhile extension is to predict the first year that the Arctic Ocean will be ice free.