Environmental Footprint part of Quantitative Skills:Activity Collection
Christina Gallup, University of Minnesota-Duluth
This activity has students do a web-based environmental footprint quiz and integrate their results into a class mean. The students compare their results by creating a bar graph and do some simple calculations to see how much of the Earth just the population of the US requires.

The Floating Lithosphere - Cross Section of North America part of Quantitative Skills:Activity Collection
Len Vacher, University of South Florida
In this module, students calculate the pressure at the depth of compensation along a cross section of North America.

The Floating Lithosphere - Isostasy part of Quantitative Skills:Activity Collection
Len Vacher, University of South Florida
Students are asked to numerically and then analytically determine the relations governing the depth of compensation.

The Floating Lithosphere - Eureka! part of Quantitative Skills:Activity Collection
Len Vacher, University of South Florida
In this module, students examine Archimede's Principle in general and as it applies to Isostacy.

Density of Earth - Using Some Field Data part of Quantitative Skills:Activity Collection
Len Vacher, 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.

Density of the Earth - How to Solve It part of Quantitative Skills:Activity Collection
Len Vacher, University of South Florida
This module addresses the real problem of determining the density of the Earth and invites the student to figure out how to solve the problem.

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).

Prework for Rivers and Streams Lab (Intro Geology) part of Quantitative Skills:Activity Collection
Rachel Teasdale, California State University-Chico
In order to give Introductory Geology (Physical Geology) undergraduate non-majors students experience and confidence in using basic algebra to calculate very simple stream flow properties, we use a prework assignment prior to the Rivers and Streams Lab. Prework is a worksheet assigned 2 weeks in advance, which asks students to calculate velocity and discharge as well as unit conversions and calculations of stream load. The questions are put into the context of activities they completed earlier in the semester during visits to the stream (on campus) so questions are relevant to their previous experiences. The prework timeframe gives students the opportunity to seek extra help from their instructor prior to the lab period in which they will make additional measurements, similar calcualations and interpretations of their data.

Weathering of Minerals part of Quantitative Skills:Activity Collection
Wendy Van Norden, harvard-westlake school
Students determine the % change in mass of mineral samples that have been placed in a rock tumbler. They graph the relationship between the hardness of the mineral and the % change in mass. They then consider why some of the mineral samples do not conform the the relationship they graphed. They investigate the physical properties of the outliers and consider how the physical properties contributed to the rate of weathering, and what kind of weathering occured in the rock tumbler.

Flooding in the Finger Lakes Region, NY part of Quantitative Skills:Activity Collection
Tara Curtin, Hobart William Smith Colleges
In this several week-long introductory geoscience project, students evaluate the potential for flooding in the local region. Students visit the site during the first week of the semester as part of a "Walk in ...