Curated OER
Ping!
Using "mystery bathymetry" shoeboxes, young explorers simulate sonar action to map out the topography of an un-viewable landscape. This classic activity helps physical oceanography learners understand how sonar works. It would be...
Cave Creek Unified School District
Crusades and Culture in the Middle Ages
The Crusades sounds like a glamorous time period in the Middle Ages full of glory—but was it? Scholars find and review the truth of the Crusades' influence on the world through the resource. The study guides, separated individually by...
Curated OER
What's Bright Red and Invisible?
Students study that very little sunlight penetrates the ocean below depths of 200 meters. They study that no light penetrates the ocean below depths of 1000 meters. They study that the quality of light changes as depth increase