Curated OER
The Disappearing Honeybees: Tracking Honeybee Decline
Students practice graphing and other math skills to track number of honeybee colonies present in United States since 1978, discuss major crops that are dependent on insect pollinators, and examine reasons for decline of United States...
Curated OER
Finding the Salt Front
Learners discuss definitions of estuary, salinity, and the salt front. They listen as the teacher explains the Hudson River Miles and ways the upriver and downriver sections relate to the north and south. Students graph the salt front...