Geologic Time
Nicole LaDue, Northern Illinois University
Formative assessment questions using a classroom response system ("clickers") can be used to reveal students' spatial understanding. Students are shown this diagram and instructed to "Click on ...

Roping Geologic Time
Randall Richardson, The University of Arizona
After having talked about the geologic time scale, I ask for two volunteers from the class to hold a rope that is 50 feet long. I say that one end is the beginning of the Earth (4.6 billion years ago), and the other is today. I then give out 16 clothes pins and ask various students to put a cloths pin on the 'time line' at various 'geologic events'. Throughout the activity I have a quiz going on where the students calculate percentages of Earth History for major geologic events, and compare it to their own ages. On their time scale, the dinosaurs died only about two 'months' ago! The exercise is very effective at letting them get a sense of how long geologic time is, and how 'recently' some major geologic events happened when you consider a time scale that is the age of the earth.

GEOLOGIC TIME: PRINCIPLES & APPLICATIONS
Tiffany Rivera, University of Missouri-Columbia; Victor Ricchezza, Georgia State University
Average inquiry level: Structured This inquiry-based lab about the principles of relative and numerical dating allows students to apply reason and logic to determine the order of geologic events, to experimentally ...

Relative Geologic Time and the Geologic Time Scale
Bret Bennington, Hofstra University
Group simulation of the development of the geologic time scale illustrating concepts of correlation and relative time. Extremely effective for teaching the significance of the geologic time scale.

Geologic time scale hiking tour group project
Erik Haroldson, Austin Peay State University
Students work in groups to develop content for am online hiking tour which is matched to the geologic time scale. This project has been used as a semester group work project in an introductory geologic history ...

Geologic Time Resorts
JoAnn Thissen
In this Geologic Time Resorts activity students do in-depth research on a given geologic time period of the Phanerozoic Eon and create brochures "selling" their time period as a resort destination.

Where on Earth were the reefs through geologic time?
Alycia Stigall, Ohio University-Main Campus
Students explore the geographic distribution of reefs through geologic time. Students map fossil occurrences of reef forming organisms on modern and paleogeographic reconstructions using the Paleobiology Database. ...

Metaphor for the geologic time scale
Cara Thompson
Students choose an object or concept that they are familiar with (e.g., football field, pint of beer, etc) and calculate the cumulative amount of that object or concept that represents intervals of geologic time. ...

Horses and Their Ancestors - A Geologic Time Scale Card Sort of the Cenozoic Era
Elisabeth Ervin-Blankenheim, Front Range Community College
The concept of geologic time can be difficult for students to grasp because of the vast scale of the Earth's 4.56-billion-year biography. This hands-on, minds-on activity highlights events during the Cenozoic ...

Learning Assessment #5 - Geologic Time (2011)
Leslie Reid, University of Calgary; Michelle Speta, University of Calgary
An in-class activity that tests students' understanding of the principles of relative age, absolute age and numerical age bracketing.