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Quantitative Skills

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BotEC: The Scale of Earth's Atmosphere part of Quantitative Skills:Activity Collection
Peter Kresan
Question: Air is our most precious resource. Without food, we can live for weeks and without water, we can live for days. But without air to breathe, we survive about 4 minutes! If you visit the top of Mt. Lemmon ...

BotEC: The Magnitude of Geologic Time part of Quantitative Skills:Activity Collection
Peter Kresan
Question The oldest rock yet to be found on the earth is from Canada and is radiometrically dated at 3.8 billion years old. Various lines of evidence suggest that the earth is about 4.5 to 5 billion years old. A ...

BotEC: Walking to the Center of the Earth part of Quantitative Skills:Activity Collection
Peter Kresan
Question: The earth's interior is composed of three main concentric zones: the crust, the mantle, and the core. The outermost layer, the crust, averages 40 km thick on the continents and is thinner (averaging ...

BotEC: The Grand Canyon's Rate of Erosion part of Quantitative Skills:Activity Collection
Peter Kresan
Question: Some geologic processes, like volcanism and earthquakes, occur intermittently but can cause significant and sometimes catastrophic change very quickly. Others, like weathering, act continuously but ...

BotEC: The San Andreas Fault's Rate of Movement part of Quantitative Skills:Activity Collection
Peter Kresan
Question: The San Andrea is an active fault zone, marked by frequent earthquake activity. The crust southwest of this strike-slip fault (including Los Angeles) is sliding to the northwest relative to the other ...

BotEC: The Himalayas and Continental Drift part of Quantitative Skills:Activity Collection
Peter Kresan
Queston: The story of the Himalayas can be traced back to the breakup of the supercontinent, called Pangaea, about 200 million years ago, when India began its rapid movement northward towards Asia. Asia was a much ...

BotEC: The Magnitude of the India-Asia Collision part of Quantitative Skills:Activity Collection
Peter Kresan
Question: The story of the Himalayas can be traced back to the breakup of the supercontinent, called Pangaea, about 200 million years ago, when India began its rapid movement northward towards Asia. Asia was a much ...

How Big is a Trillion? part of Pedagogy in Action:Library:Teaching Quantitative Reasoning with the News:Examples
Stuart Boersma, Central Washington University
Perhaps the first skill needed for successful quantitative reasoning is the ability to understand a single number. Newspaper headlines over the last year have used some amazingly large figures when discussing the ...

How many sand grains on a beach? part of Quantitative Skills:Activity Collection
Alan Whittington, University of Missouri-Columbia
Short exercise designed to give students practice in determining what information is needed to answer a question, estimating an answer, and calculating an answer (including unit conversions and scientific notation). Emphasizes the relevance of large numbers to society (population, debt, etc).

Choosing Between Home Appliances: Benefits to the Planet and Your Wallet part of SISL:2012 Sustainability in Math Workshop:Activities
Corri Taylor, Wellesley College
Students research various options for new appliances and make purchasing decisions based not merely on purchase price, but also on energy efficiency, which has implications for the planet AND for longer-term personal finances. Students calculate the "payback period" for the more energy efficient appliance and calculate long-term savings.



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