PBS
Hidden Alarm
It's time! The fourth lesson in a five-part series has teams of scholars build a circuit for an alarm. A switch lets them turn the alarm on and off and allows them to hide the alarm—just as long as they don't hide it in the classroom!
Curated OER
TE Activity: Trash Talkin'
Young scholars collect and categorize solid waste produced in the classroom. They weigh the waste that has been collected over one week's time, and separate it into recyclable and non-recyclable waste. They talk about the role of...
Curated OER
PAPER RECYCLING
Young scholars examine the availability and use of important resources, people practice conservation. They explore the needs of an expanding human population, societies practice resource management and employ technology.
Curated OER
Waste, Then and Now
Students discuss and compare the waste disposal habits of today with those of Native Americans of long ago.