Embedded Files
You are free to use, copy, edit, and share all of these resources. They were designed with the purpose of use in a classroom to instruct and guide students. This experiment may be integrated into your math or science curriculum; it could be a special project for a group of students; it could be extra credit. You know your school and your students.
These slides summarize the history of Eratosthenes' experiment and introduce the concept of this project.
They also show how to derive and use the formulas, walking through the plane geometry and spherical trigonometry.
All images (except for diagrams original to the slides) are copyright-free, cited through links to WikiMedia Commons in the slides. Some images of the Earth were generated through Google Earth.
Use them as they are, or make a copy and edit them to fit your own needs.Â
Data sheet
Data sheet.pdf
Print this data sheet for students to use while conducting the experiment.
Available here as Slides, PDF, and png.
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