DCI: PS4.C Information Technologies and Instrumentation – People also use a variety of devices to communicate (send and receive information) over long distances.
PE: 1-PS4-4 Use tools and materials to design and build a device that uses light or sound to solve the problem of communicating over a distance.
The basic content of the standard seems to be as follows.
People use devices (that use light and sound) to communicate over long distances.
There seems to be nothing in the DCI alone that is worthy of a question. I think we will have to focus on tools.
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