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Race and Space
This assignment exposes students to racial inequalities in their own communities and helps them to identify the impact of racial segregation on quality of life. The big ideas in this assignment are racial inequality, residential segregation, and environmental justice.

What's for Dinner? Analyzing Historical Data about the American Diet
Jessica Libertini, Johns Hopkins University
In this activity, students research the historical food consumption data from the U.S. Department of Agriculture to observe trends, develop regressions, predict future behavior, and discuss broader impacts.

One day it is too hot and other days it is too cold. Do we need to replace the HVAC system?
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.

A Monarchy Deposed: The Demise of the Monarch Butterfly
Daniel Abel, Coastal Carolina University
Monarch butterflies (scientific name: Danaus plexippus) migrate annually to forests in central Mexico from Canada and California. Those surviving the 1200 - 2800 mile migration overwinter in Mexico. In this activity, students will learn about the conservation biology of monarch butterflies, threats to their survival, the implications of their potential extinction, and ways to protect the species.

Modeling: (1) Revenue Neutral Carbon Taxes; (2) Accelerated atmospheric C02 concentrations
Martin Walter, University of Colorado at Boulder
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.

Back-of-the-Envelope Calculations: Scale of the Himalayas
Barb Tewksbury, Hamilton College
Question Let's imagine a scale model of the Earth, and let's imagine that the Earth is the size of a basketball. Suppose that you wanted to build the Himalayas to scale on the surface of the basketball. ...

Age Dependency Ratios: Numbers in Context
Eric Gaze, Bowdoin College
This activity involves computing dependency ratios and interpreting these numbers in context.

Understanding Exponential Growth in the Context of Population Models
Corri Taylor, Wellesley College
This set of short assignments gives students practice with exponential models in the context of the growing human population.

How Far is Yonder Mountain? -- A Trig Problem
Len Vacher, University of South Florida
Spreadsheets Across the Curriculum module. Students use Polya's problem-solving heuristic to find the distance of a peak using vertical angles sighted from a wagon train heading toward the peak.