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offers over 300 mathematics assessment tasks for grades K-12. Topics and activities include averages, addition, area, batting orders, bicycle rides, chance of rain, chance of survival, cheetah's lunch, classroom groups, cost of living, dart boards, detective stories, Fermi estimates, genetic codes, gestation and longevity, graphing, gravity, intersections, logarithms, oil consumption, rectangles, rising prices, squares and circles, stock market, triangles, volume, and more. (The Concord Consortium, National Science Foundation)
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