Curated OER
On Aztec Terraces
Young scholars investigate the development and use of Aztec terraces while farming. They conduct research using a variety of resources. Students use the information for the context of class discussion and then create a diorama to...
Wessels Living History Farm
Living History Farm: Contour Plowing
Wessels Living History Farm explains some of the history behind contour plowing in the United States. Great photo illustrating contour planting on terraces in Iowa included.