3D Educational Resources

Telegraph Key: A 3D exploration of electrical transmissions

With downloadable 3D files and activity sheets, students explore an early form of electrical communication, electrical circuits and how codes can be used to transmit information. Emphasis is placed on creating a working telegraph key and seeing how it can be used to transmit Morse code.

The 3D printing file for the telegraph key can be downloaded individually. Worksheets and 3D print files for the module can be reproduced as necessary for your classroom. You can also download the entire Guide as a single file.

Terms of use

3D Printing File

Download and print your very own telegraphi key! This .stl file can be reproduced as needed for your classroom, and can be constructed by following the instructions in the guide below.

Download STL files

Activity 1: Build your own telegraph key

In this activity you and your students will build a telegraph key and learn about how it uses some basic principles of circuits to send a message.

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Want help in assembling your working telegraph key? Here's a short video that will help.

Activity 2: What is Morse code?

Your students will learn about how the telegraph key can transmit information using code, such as Morse Code. They'll then have a chance to complete a series of coding challenges.

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The artifacts collected, preserved, and displayed by Ingenium showcase Canada's rich history of innovation in science and technology. Each artifact tells a story of innovation and illustrates how science and technology have contributed to the transformation of Canada. Learn more about this artifact with this "ArtiFactsheet".

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