CK-12 Foundation
Telegraph
Most pupils don't know what a telegraph is, much less how one works. A secret simulation has scholars pick the size of the primary and secondary loops, the battery voltage, and which letters in the Morse Code they want to transmit. They...
Curated OER
Was There an Industrial Revolution? Americans at Work Before the Civil War
Students investigate the First U.S. Industrial Revolution. They identify positive and negative effects of early industrialization, read first-hand accounts, role-play and interview individuals, and participate in a debate.