Curated OER
Hold A Hill
Young scholars inspect soil erosion. In this soil erosion lesson, students examine the causes of soil erosion and discover ways to conserve the landscape.
Curated OER
Junior Engineering Retaining Walls
Young scholars name the properties of sand as related to the properties and the building of retaining walls. They build a retaining wall and state how retaining walls are used.
PBS
Pbs Teachers:japan's Secret Garden: Build a Rice Paddy
Discover the engineering skills of ancient builders. Follow the evolution of a new terraced rice paddy, a masterpiece of ancient engineering that has existed in China, the Philippines and elsewhere for as long as two millennia.