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# Quantitative Skills Show all Quantitative Skills

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Radiometric Dating part of Quantitative Skills:Activity Collection
Related Links Radioactive Decay Exponential Growth and Decay Peter Kohn - James Madison University Christopher Gellasch - U.S. Military Academy Jim Sochacki - James Madison University Scott Eaton - James Madison University Richard Ford - Weber State University
This activity leads students through derivations of the equations associated with radiometric dating.

Density of Earth - Using Some Field Data part of Quantitative Skills:Activity Collection
Len Vacher, Dept of Geology, University of South Florida
This module addresses the problem of how to determine the density of the earth and has students do some field experiments to get the data they need to answer the problem.

Reading Topographic Maps and Calculating Map Scale part of Quantitative Skills:Activity Collection
Leslie Kanat, Johnson State College
Use a topographic map to deliniate a watershed, draw a map bar scale, and calculate a map ratio scale.

Population Growth, Ecological Footprints, and Overshoot part of SISL:2012 Sustainability in Math Workshop:Activities
Rikki Wagstrom
In this activity, students develop and apply linear, exponential, and rational functions to explore past and projected U.S. population growth, carbon footprint trend, ecological overshoot, and effectiveness of hypothetical carbon dioxide reduction initiatives.

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.

How much energy do you save by doubling insulation? part of SISL:2012 Sustainability in Math Workshop:Activities
Joseph Skufca
Students will be provided the governing equation for steady state heat transfer across a surface. They will use that equation to explore the effect of changing the insulation value on the amount of energy used.

Should I Unplug? part of SISL:2012 Sustainability in Math Workshop:Activities
Lori Carmack
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Density of rocks - How large is a ton of rock? part of Quantitative Skills:Activity Collection
Len Vacher, Dept of Geology, University of South Florida
This module addresses the problem of how to determine the size of a ton of rocks of a given composition and invites the student to figure out how to solve the problem.

One day it is too hot and other days it is too cold. Do we need to replace the HVAC system? part of SISL:2012 Sustainability in Math Workshop:Activities
Monika Kiss
This project will allow students to create a mathematical model to help in making decision about replacing HVAC units on a large scale.

Modeling: (1) Revenue Neutral Carbon Taxes; (2) Accelerated atmospheric C02 concentrations part of SISL:2012 Sustainability in Math Workshop:Activities
Martin Walter
Design a revenue neutral carbon tax and a plan for implementation; together with a model for what happens if we do not institute such a tax-system.