Activity 01
Hands-On Investigation: Replicating Eratosthenes
Students measure shadows at two points of known distance apart, or use provided classroom data, to calculate Earth's circumference using Eratosthenes' method. Groups compare their results to the actual circumference and discuss how accuracy improves with careful measurement, connecting history directly to math standards.
Analyze the foundational contributions of Greek mathematicians like Pythagoras and Euclid.
Facilitation TipDuring the Eratosthenes investigation, have students work in teams to measure shadows at the same time from different locations to replicate ancient calculations.
What to look forPresent students with a diagram of a right triangle with two sides labeled. Ask them to write the formula for the Pythagorean theorem and solve for the missing side, showing their work.