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How Big Is the Earth?

In collaboration with another school north or south of yours, rnuse the method of Eratoshenes to determine the circumference rnof the Earth.


Stephen J. Edberg

Date Accepted: 2013-08-16 Grade Group: High School (9-12) Benchmarks: M4.4.8 M5.4.12 M8.4.2 M8.4.15 S15.4.4 S16.4.1 S16.4.3 Keywords: circumference radius eratosthenes gnomon sun dial earth noon time zone latitude longitude collaboration Microsoft Word: 04_01_13_1.docx PDF Document: 04_01_13_1.pdf