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 observe the workings of a telegraph and the importance of the loops on both sides of the transmission.

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CCSS: Adaptable
NGSS: Designed
Instructional Ideas

  • Discuss how the invention of the telegraph changed society
  • Have students write a short message in Morse Code for another student to translate
Classroom Considerations

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Pros

  • Offers challenging analysis question in the simulator
  • Includes intuitive controls, allowing students to explore the simulation with little guidance
Cons

  • None
Common Core