Understanding Radioactivity in Geology: The Basics of Decay part of Activity Collection
PowerPoint module leading students through creation and manipulation of spreadsheet to forward model an example of exponential decay—the number of remaining unpopped kernels of popcorn in a bag of popping popcorn.

Lake Level Changes in the Arid West part of Activity Collection
Students use the modeling program STELLA to see what combinations of runoff and evaporation might have lead to Pleistocene lake level oscillations in California's Owens River system.

Radioactive Decay and Geochronology part of Activity Collection
Students create a STELLA model of the radioactive decay process.

Mathematica Tutorial part of Tools and Datasets
Bill Titus, Carleton College Department of Physics and Astronomy, Northfield, MN 55057-4025 March 1, 2003 These nine, self-paced tutorials that will expose you to various Mathematica tools and skills. Note: You ...

The Floating Lithosphere - Isostasy part of Activity Collection
Students are asked to numerically and then analytically determine the relations governing the depth of compensation.

Global Temperatures part of Teaching Methods:Teaching with Data:Examples
Students analyze the global temperature record from 1867 to the present. Long-term trends and shorter-term fluctuations are both evaluated.

Stratospheric Ozone part of Teaching Methods:Teaching with Data:Examples
Students explore observational data from ozone-sondes, TOMS, and UARS measurements to learn about changes in stratospheric ozone over the past several decades.

Integrating Measurement and Uncertainty into Science Instruction part of Teaching Methods:Measurement and Uncertainty
"When you can measure what you are speaking about, and express it in numbers, you know something about it; but when you cannot measure it, when you cannot express it in numbers, your knowledge is of a meagre ...

How Big is a Trillion? part of Teaching Methods:Teaching Quantitative Reasoning with the News:Examples
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 ...

Cost Effectiveness of Increased Fuel Efficiency part of Teaching Methods:Teaching Quantitative Reasoning with the News:Examples
In this example students examine and critique an argument which implies that it is not cost effective to pay for an automobile with increased fuel efficiency. Using a few reasonable assumptions shows that some of ...