Keep Out!

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Sound the alarm about a great resource. Scholars first build a simple circuit to learn the basics about electric currents. They then design an alarm system in which a buzzer activates when pressure is applied to a doormat.

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Instructional Ideas
  • Invite a security specialist to give a presentation on alarm systems
Classroom Considerations
  • Materials to build a circuit are necessary, including batteries, wires, and buzzers
  • Each group also needs a doormat or large towel
  • This resource is only available on an unencrypted HTTP website. It should be fine for general use, but don’t use it to share any personally identifiable information
Pros
  • Provides a printable handout
  • Lists some questions for a class or group discussion
Cons
  • None