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, Saint Leo University
This project will allow students to create a mathematical model to help in making decision about replacing HVAC units on a large scale.

The Costs of Your Commute: Your Money, Your Time, and the Earth part of SISL:2012 Sustainability in Math Workshop:Activities
Charlie Buehrle, Harrisburg Area Community College-Harrisburg
This activity has students investigate their own cost, CO2 output, and time for commuting. They then compare their commute to an environmentally conscious alternative by using comparable metrics.

Learning Sustainability with Sim City part of SISL:Activities
Sybil Hill
Sim City is a computer game that has the player design a city. They become the mayor. While designing the city from ground, they can choose sustainaiblity energy options such as wind farms, geothermal, and solar. The game includes greening options and pollution factors. Teachers in a variety of disciplines can utilize this to bring their core course concepts to life.

Solar panel statistical tests part of SISL:2012 Sustainability in Math Workshop:Activities
Owen Byer, Eastern Mennonite University
In this activity, students will determine whether there is a statistically significant difference in the number of watts of power produced on individual solar panels at Bryn Mawr College.

Hybrid Vehicles: Are They Worth It? part of SISL:2012 Sustainability in Math Workshop:Activities
Lori Carmack, Salisbury University
In this project, students analyze the costs of gasoline nationwide. They also investigate the cost-effectiveness of purchasing a new hybrid vehicle as opposed to purchasing a new vehicle that runs solely on gasoline.

Should I Unplug? part of SISL:2012 Sustainability in Math Workshop:Activities
Lori Carmack, Salisbury University
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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.

ELIMINATING TRAYS IN THE CAFETERIA: BENEFITS TO THE PLANET AND TO ECONOMIC COSTS part of SISL:2012 Sustainability in Math Workshop:Activities
Dianne Marquart
In this activity, students will investigate the economic and environmental benefits of eliminating food trays in the cafeteria at their college.

Economics of installing Solar PV panels: is it worth it to the individual? part of SISL:2012 Sustainability in Math Workshop:Activities
Martin Walter, University of Colorado at Boulder
We show that it is economical for an individual to install solar photovoltaic panels in Denver, Colorado; and this is a sustainable strategy for society at large.

Biking vs Driving part of SISL:2012 Sustainability in Math Workshop:Activities
Deirdre Smeltzer, Eastern Mennonite University
How much difference would biking to work one day per week make?