Curated OER
Planning a Trip for Christopher Columbus
First graders plan a trip for Christopher Columbus. They use their math skills to construct a ship for Columbus' voyage. They show their ship and calculations to their classmates and build graphs to show the amount of supplies needed to...
Curated OER
Explore the Mathematics of the Explorers
Columbus and other explorers relied upon mathematical calculations using the Earth, stars, and ships speeds.
Curated OER
Earth is Round?
Third graders discuss how Aristotle concluded that the Earth was round. As a class, they review theories about the Earth's shape and describe how life on Earth would be different if it were flat. Individually, they make a moon book in...