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PHOTOSYNTHESIS, FOOD, AND POPULATIONSStudents construct a food-energy "economy" using a glucose "energy exchange coin"


A Squared Away Unit

Beginning with a puzzle in which they construct an "energy exchange coin"—the glucose molecule that functions as the means of exchange in the food-energy "economy"—students examine the role of simple sugars and other materials involved in photosynthesis and oxidation. Students create food chains and webs for a fictitious meadow and calculate food-energy budgets for its inhabitants, predicting population changes in response to food-energy availability. They then learn how humans must also work with the same food-energy strategies, and how these give rise to some of today's world crises. The teacher's guide provides complete procedures, background essays, pre- and posttests, extension activities, assessments, and rubrics. The full simulation runs for five class periods. ©2010.

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This Title is part of the Series: SQUARED AWAY

QuantityOrder CodeISBNMedia/ContentPrice
INT849-WBINT 9781560045953 Reproducible activities $49.95
INT849E-WBINT 9781573364263 Downloadable version (7 MB) $49.95

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