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Lesson 3: Ding Dong – A Doorbell System!

This lesson explores the concept of systems, specifically focusing on a doorbell system as an illustration of how separate parts work together to achieve a function. Students will learn about Intelligent Transportation Systems (ITS), goals such as improving safety and security, and how these systems can enhance everyday life. Through discussions and pair work, they'll identify subsystems involved in ITS and apply systems thinking to analyze even simple technologies like doorbells. Key concepts include resources, requirements, optimization, trade-offs, processes, and control.

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Lesson 3: Ding Dong – A Doorbell System!

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  1. Lesson 3: Ding Dong – A Doorbell System! What is a system? A group of separate parts that work together to perform a specific function.

  2. Lesson 3: Ding Dong – A Doorbell System! 1. Take a minute to think about the term Intelligent Transportation System and then name a few of the goals that an Intelligent Transportation System might be designed to achieve. • Improve safety • Improve security • Improve transportation times • Improve fuel consumption

  3. Lesson 3: Ding Dong – A Doorbell System! 2. Think about how an Intelligent Transportation System might improve your life.

  4. Lesson 3: Ding Dong – A Doorbell System! 3. Students, working in pairs, will list some of the subsystems that might be part of an Intelligent Transportation System.

  5. Lesson 3: Ding Dong – A Doorbell System! 1. Systems thinking involves considering how every part relates to others. a. System – A group of interacting, interrelated, or interdependent elements or parts that function as a whole to accomplish a goal. b. Resources– Things needed to get a job done. c. Requirements– The parameters or limitations placed on the development of a product or system.

  6. Lesson 3: Ding Dong – A Doorbell System! d. Optimization– An act, process, or methodology used to make a design or system as effective or functional as possible within the given criteria or constraints. e. Trade-off – An exchange of one thing in return for another. f. Processes– A systematic sequence of actions that combines resources to produce an output. g. Control– An arrangement of components that command or direct a system.

  7. Lesson 3: Ding Dong – A Doorbell System! 3. All technology systems make use of a group of interacting, inter­related, or interdependent elements or parts that function as a whole to accomplish a goal. 4. The teacher will state that even simple systems like a doorbell can be analyzed in using the terms we have just defined.

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