Contribute a Teaching Activity or Assignment

From the materials that you provide below, we will create a web page describing your contribution to the Cutting Edge collection of activities and assignments. Visitors to the Cutting Edge web site will be able to find your activity by using the search engine.

At the bottom of the form, you will upload a file containing the activity/assignment, plus other supporting documents. Please note that the maximum file size for uploading is 50 Mb.If your assignment/activity requires large data sets, please either provide URLs where the data can be downloaded or include download instructions in the assignment information itself.

This form and the file uploads must be completed in a single session. Leaving the page erases the data. You cannot submit a partially completed form and return to it later. After you submit the form, you will have the option of immediately creating a webpage from your materials and being able to edit it. This is a useful option if you have more images and files to upload than there are space on the form. If you are interested in this option, there will be further instructions for this after you complete the form and hit "Submit."

You retain all rights to your contributed work. By contributing your work to this web site, you give On the Cutting Edge a license for non-commercial distribution of the material, provided that we attribute the material to you. View our terms of use (opens in a new window) for more details about this kind of Creative Commons (opens in a new window) license. You are responsible for referencing other people's work and for securing permission to use any copyrighted material within your contribution. If your submission contains illustrations from a publication of the Geological Society of America, you can expedite request for permission from them, and waive the fee, by e-mailing GSA Permissions and referring to On the Cutting Edge.

Thank you for making this contribution!









Topic(s) of this assignment/activity




















Type of Activity











To help your colleagues understand when or how they might successfully use your activity with their own students, please provide the following information on context.







To help your colleagues understand the role of this activity or assignment in your course, please provide a statement of the goals that you have for students in the following three areas:







Please provide a short description of your activity or assignment and its outcomes. Be sure to include essential key words or index terms to help users find resources using our search/browse functions. You will find a sample description below.
Sample Description

To prepare for this case study, students do background reading on landslides and rock avalanches and read the introductory portion of Hermanns and Strecker's 1999 article on rock avalanches in Argentina. In class, students receive data (assembled from figures in the article) on bedrock geology and physiography, as well as stereonets showing orientations of prominent joint sets, bedding, and foliations in the bedrock. Their task is to answer the question of why gigantic rock avalanches occur is some places but not others in this part of Argentina. The activity gives students practice in interpreting geologic maps, using stereonets, and peer teaching. Each student receives one of four possible data sets and must ultimately explain his/her analysis to others. The activity also connects structural geology to another geoscience discipline.






We encourage you to upload files with the full activity description or actual assignment, instructor's notes, and a solution set. You may also upload additional supporting materials such as grading rubrics, data files, images, and sample student work. Please be sure that your files are smaller than 50 Mb. This is a hard upper limit - we hope that your files will, in fact, be much smaller than this!

Activity Description/Assignment

A single file containing a complete description of the activity or the actual assignment given to students. Please be sure to include a cover page with at least a title, author(s), affiliation, and contact information. We encourage you to provide relevant background information, context, and goals on the same cover sheet.

Instructor's Notes

A single file with additional background information for the instructor. This might include a discussion of the background knowledge and skills needed to complete the activity, lecture notes, instructions on how to run the activity, tips for success, etc.

Solution Set

A single file with the solutions to the activity.

Supporting Materials

You may upload up to five additional files to accompany your submission. If you have more than five additional files, please combine them (such as in a .zip archive) for uploading.




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