An Assessment of Hillslope Stability Using the Factor of Safety part of Quantitative Skills:Activity Collection
Laura Moore, University of North Carolina at Chapel Hill
In this homework assignment students are asked to consider the balance of forces on a hill slope using the Factor of Safety.

Using a Mass Balance Model to Understand Carbon Dioxide and its Connection to Global Warming part of Quantitative Skills:Activity Collection
Bob Mackay, Clark College
Students explore the increase in atmospheric carbon dioxide over the past 40 years with an interactive on-line model.

Introduction to Microsoft Excel part of Quantitative Skills:Activity Collection
Dave Hirsch, Western Washington University
This assignment walks students through the creation of an Excel spreadsheet, step by step. It includes fills, references, formulas, and charts.

Kohler Curves part of Quantitative Skills:Activity Collection
Swarndeep Gill, Pennsylvania Western University - California
An assignment teaching students about Kohler curves that enhances their quantitative skills.

Atmospheric Vertical Structure and the First Law of Thermodynamics part of Quantitative Skills:Activity Collection
Anthony Hansen, Saint Cloud State University
This set of homework problems is intended to help students begin to discover the importance and utility of conservation principles derived from the First Law of Thermodynamics and provide a first step in evolving from the p-V diagrams the students have seen in their physics coursework toward the thermodynamic diagrams used in meteorology.

Three-Point Problem by Simultaneous Linear Equations part of Quantitative Skills:Activity Collection
William Frangos, James Madison University
Students are introduced to the use of linear algebra in an intuitive and accessible way, through classroom activity and homework set. The familiar three-point problem is cast in terms of three dimensional analytic geometry, fostering understanding of mathematical models for simple geometric forms.

Assessing the error of linear and planar field data using Fisher statistics part of Quantitative Skills:Activity Collection
Vince Cronin, Baylor University
Instruction on use of Fisher statistics to determine the mean and 95% confidence interval of geological vectors, lines or planes, with examples, problems and an Excel spreadsheet for computation.

Continental Crust Mass Balance Calculation part of Quantitative Skills:Activity Collection
Jennifer Wenner, University of Wisconsin-Oshkosh
A quantitative skills-intensive exercise using data from the Mineral Mountains, Utah, to calculate mass balance and to address the "space problem" involved with emplacing plutons into the crust.

How many sand grains on a beach? part of Quantitative Skills:Activity Collection
Alan Whittington, The University of Texas at San Antonio
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).

Surface Water Hydrology part of Quantitative Skills:Activity Collection
William Locke - Montana State University - Bozeman, MT Related Links Floods and Flooding Recurrence Intervals
This problem set/lab exercise deals with surface water hydrology, specifically the local nature of stream runoff.