Measuring the Earth (Eratoshenes' method)
Sixth graders engage in problem solving, communicating, reasoning, and connecting to represent and solve problems, using geometric models.
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Measuring Earth’s Circumference as Eratosthenes
Students read The Librarian Who measured the Earth and simulate the work of Erastosthenes. In this measurement lesson, students recognize the way to measure Earth using arcs and angles. Students answer questions about how Erastosthenes...
6th - 7th Math
The Librarian Who Measured the Earth
Learners read the Librarian Who Measured the Earth and discuss Ancient Greece. In this Ancient Greece lesson, students create scrolls to simulate those of Ancient Greece. Learners use the method of Eratosthenes and calculate the...
2nd - 6th English Language Arts