Reading Topographic Maps and Calculating Map Scale part of Quantitative Skills:Activity Collection
Leslie Kanat, Johnson State College
Use a topographic map to deliniate a watershed, draw a map bar scale, and calculate a map ratio scale.

Laboratory Activity: The Sun and Climate part of Quantitative Skills:Activity Collection
Peter Selkin, University of Washington-Tacoma Campus
In this physical geography lab, students examine the relationship between solar altitude, solar declination, and temperature regimes. Using data collected in the field, mathematical relationships, and temperature records available on the Internet, students compare the insolation and climate in their location to that of other locations.

Illustrating Hillslope Diffusion with Physical and Numerical Models part of Quantitative Skills:Activity Collection
Gregory Hancock, College of William and Mary
This problem illustrates how numerical theories are developed, how we might test this theory with an analog model, and how numerical models are constructed and the limitations of numerical modeling.