Pedagogy in Action > Library > Guided Discovery Problems > Examples > Geoworld Plate Tectonics Lab

Geoworld Plate Tectonics Lab

Author: Ann Bykerk-Kauffman . Department Of Geological and Environmental Sciences, California State University, Chico

This activity was inspired by Peter J. Coney's "Plate Game." Deborah A. Stoneman and Mark D. Olivares helped write the first version.

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This material was originally created for On the Cutting Edge: Professional Development for Geoscience Faculty
and is replicated here as part of the SERC Pedagogic Service.

Summary

In this plate tectonics activity, students analyze the tectonics of a simple fabricated flat planet (called Geoworld) that features continents with ancient mountain ranges, oceans (complete with magnetic "stripes" and a hotspot volcanic chain), an island arc and a trench. Activities include dating the initiation of sea-floor spreading, determining the sense of offset on transform faults, calculating relative and absolute rates of plate motion, draw­ing whole-lithosphere cross-sections, and reconstructing past and future plate regimes. These analyses lead to some counter-intuitive conclusions, guiding students toward a deeper understanding of fundamental plate tectonic concepts such as the difference between relative and absolute plate motion.

Learning Goals

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By working through this activity, students deepen their understanding of fundamental plate tectonic concepts, improve their ability to use mathematics to solve geological problems, develop their 3-D visualization skills, and gain an appreciation of the ever-changing configurations of plates, continents, and plate boundaries.

The specific content learning objectives are:

Context for Use

This activity is ideal for advanced high school earth science courses and for college-level Physical or Historical Geology courses. It could also serve as an introductory activity in a Tectonics course.

Before completing this activity, students should:

Description and Teaching Materials

Teaching Notes and Tips

At California State University, Chico, we use the Geoworld activity during a three-hour laboratory period in our Historical Geology course; some students complete it within the three-hour period, but most need some additional time outside of class. The mathematical calculations are challenging for some students, even though they are all based on the simple distance = rate x time equation. I recommend working through a few sample calculations as a class, applying at least two of the various versions of this equation (e.g. rate = distance/time; time = distance/rate).

Assessment

In addition to the traditional ways of assessing student learning from this activity (i.e. grading all of the questions in the activity, or asking questions on an exam similar to those in the activity), one can assess student learning from this activity by assigning students to write a lab report that consists of the more comprehensive questions in the activity. This focuses student attention on the important concepts and decreases the grading load. To see an example of such an assignment click Geoworld Lab Report (Microsoft Word 24kB Dec12 08). Another way to assess student learning and simultaneously go over the lab is to divide the questions among the various lab groups, assigning each group to present their answers to their assigned questions to the rest of the class, illustrating their presentation with overhead transparencies.

References and Resources

Bykerk-Kauffman, A., 1992, Geoworld: a plate tectonics exercise for Historical Geology: Geological Society of America Abstracts with Programs, v. 24, no. 7, p. A306.

The Theory of Plate Tectonics CD-ROM, an excellent tutorial by Tasa Graphics that explores many aspects of the theory of plate tectonics, including the background needed to complete the Geoworld lab.

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