This project was funded by a National Science Foundation grant to expose high school students to geoscience within their required science curriculum. A collateral benefit is integrating key concepts in other sciences. In Biology, natural selection requires eons (“deep time”) to create Earth’s biodiversity. In project-based learning using fossil-bearing rocks of multiple ages, students experience deep time concretely.
A barrier to hands-on fossil study is the expense of specimens good enough for university students to systematically learn fossil taxa. However, imperfect samples can connect anyone to deep time. Ironically, some such samples are simply dumped when teachers return from professional development field trips. This presentation reveals a path to making use of such ordinary material by 1) circling fossils in ink, 2) creating a picture guide from circled fossils, 3) building a PBL unit uniting those fossils with a biodiversity-though-time graphic known as a Tree of Life diagram.
TAKEAWAYS:
Might students better master evolution standards, especially extinction and adaptation, by encountering fossils through "deep time"? Teacher-collected samples, with fossils circled in ink, a picture guide made from the set, and a detailed Tree of Life diagram form foundations for PBL exploration.
SPEAKERS:
Adrianna Rajkumar (Lecturer), Katty Mobasher (Professor of Geology and GIS: , GA), Bill Witherspoon (geologist/educator: Decatur, GA)