Astronomy and Astrophysics – Astronomy
Scientific paper
Sep 1996
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996dps....28.2405r&link_type=abstract
American Astronomical Society, DPS meeting #28, #24.05; Bulletin of the American Astronomical Society, Vol. 28, p.1157
Astronomy and Astrophysics
Astronomy
Scientific paper
In May of this year 5th grade students at Glenarden Woods Elementary School in Glenarden, Maryland and 4th grade students at Wildwood Elementary School in Amherst, Massachusetts worked together to duplicate Eratosthenes's measurement of the circumference of the Earth. Eratosthenes was a Greek who lived and experimented in Egypt in the Ptolemaic era. His determination of the Earth's circumference was within 15% of the modern day value. The original purpose for the project was to add math and science into a thematic study of ancient Egypt that already involved language arts, social studies, and art. The experiment can also be used for discussions about what information was available to early explorers, e. g. Columbus's reasoning that it was feasible to sail from Europe to Japan was based upon a value of the Earth's circumference much smaller than what Eratosthenes had calculated. Besides these connections it was a great activity by itself for the students to learn and apply science process skills. The final error in the students' determination of the circumference of the Earth was on the order of Eratosthenes's error. We will present how we did the project, the worksheets the students used, and lessons learned.
Hackett K.
Kaplan Ted
Romani Paul
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