Curated OER
Land Use and Soil Loss
In this land use and soil loss instructional activity, students match 5 types of land use with their description and write true or false to 5 statements about the effects of land use and soil loss. The correct false statements to make...
Curated OER
Contours, Curves & Lines
Learners discover how straight lines and curves function in both art and the science of conservation tillage by building model "hills" and experimenting on them.
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.