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

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

Angle of Repose part of Quantitative Skills:Activity Collection
A student activity to determine the angle of repose and what factors determine the angle of repose.

Applications of Vector Operators for Surface Atmospheric/Oceanic Processes part of Quantitative Skills:Activity Collection
This lab exercise provides students with activities utilizing vector operations within the context of the atmospheric and oceanic environments.

Air-sea Interactions: Activities in Oceanography part of Quantitative Skills:Activity Collection
This online set of activities help students learn properties of ocean waves, wind-wave relationships and properties of tsunamis.

Mid-level spreadsheeting and complex modeling of real-world scarp evolution part of Quantitative Skills:Activity Collection
This exercise is a second or familiarization exercise in spreadsheeting, but is also a mathematical model for slope evolution. It uses the concept of "erosivity" (generally, the relative ratio of driving and resisting forces) and slope angle to reshape an initial topography. Finally, it asks the students themselves to come up with a real-world situation worth modeling.

Viscosity of the Mantle: Constraints from Post-glacial Rebound part of Quantitative Skills:Activity Collection
This laboratory experiment emphasizes the exponential nature of post-glacial rebound and reinforces the relationship between the rate of rebound and the viscosity of the mantle.

Driving Through Geologic Time - An analogy part of Quantitative Skills:Activity Collection
An analogy of the Earth's history to a cross-country drive.

Exploring Radiometric Dating with Dice part of Quantitative Skills:Activity Collection
An activity in which students use dice to explore radioactive decay and dating and make simple calculations.

Demonstration of radioactive decay using pennies part of Quantitative Skills:Activity Collection
A demonstration (with full class participation) to illustrate radioactive decay by flipping coins. Shows students visually the concepts of exponential decay, half-life and randomness. Works best in large classes -- the more people, the better.