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Estimate the Circumference of the Earth using Eratosthenes' Method

Estimate the Circumference of the Earth using Eratosthenes' Method

This activity, from the Real World Learning Objects Resource Library, helps students estimate the circumference of the earth by recreating "Eratosthenes' amazing experiment utilizing data generated from the Stevens-sponsored telecollaborative project the Noon Day Project." This site explains the 60-minute activity, complete with learning goals, step-by-step classroom procedures, materials, assessment activities, and resources for further information. The "Content Materials" section contains instructions for students, background information, and graphics to help students understand Eratosthenes' experiment. Combining math and science principles, this is an excellent ready-to-use and easy-to-adapt resource for educators to use in the trigonometry classroom.

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