Curated OER
Running with Momentum
Students discuss the conservation of momentum in a collision between two bumper cars and an explosion between a bullet and the rifle's kickback, as well as collisions occurring in 2 dimensions and how they are all expressed mathematically.
Curated OER
Harnessing the Wind for Electricity
Ninth graders explain how wind can produce electricity. In this geometry lesson, 9th graders construct their own pin wheel turbine and calculate its power. They discuss the pros and cons of using wind generator.
Curated OER
Etc: Maps Etc: Route of the Panama Isthmian Canal, 1904
A map from 1904 of the Panama Canal showing terrain relief of the isthmus, noting the 'Canal always follows the line of the Railroad’ from Colon to the city of Panama. "For generations the Panama Canal had been the dream of man and for...