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      Lesson details

      Learning outcome

      I can identify the inputs, processes and outputs in a control system.

      Key learning points

      1. A context is the situation within which something exists and is the starting point for an interactive design process.
      2. Systems use inputs, processes and outputs, and can also include variables and feedback.
      3. Systems can be planned using flowcharts.

      Keywords

      • Context - the situation within which something exists or happens

      • Design brief - a statement that explains what you are going to design and manufacture

      • Variable - something that can change

      • Feedback - a signal that is sent back in a loop, depending upon a condition

      Common misconception

      Systems are simple with just one input, process and output.

      Systems can be complex with multiple inputs, processes and outputs, feedback and variables.

      Teacher tip

      Download the sample programs and test before the lesson.

      Equipment

      Access to tinkercad.

      Licence

      This content is © Oak National Academy Limited (2025), licensed on Open Government Licence version 3.0
      except where otherwise stated. See Oak's terms & conditions
      (Collection 2).

      Lesson video

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      Prior knowledge starter quiz

      6 Questions

      Q1.
      Which are examples of a context, the situation within which something exists or happens?

      A tin opener
      Correct answer: Cooking at home
      Correct answer: Travelling
      A suitcase
      Correct answer: Nature

      Q2.
      A statement that outlines the requirements of a product is a?

      Design fixation
      Correct answer: Design brief
      Design opportunity
      Design challenge
      Design idea

      Q3.
      Order these elements of a system approach to design.

      1 - Input
      2 - Process
      3 - Output

      Q4.
      Which definition is correct for this component, a resistor?

      An image in a quiz
      a component that amplifies the flow of current
      a component that stops the flow of current
      Correct answer: a component that restricts the flow of current
      a component that stores the flow of current

      Q5.
      A device that can be programmed to control how an electrical product operates is called a .

      Correct Answer: microcontroller

      Q6.
      What are the benefits of virtually modelling a design before manufacture?

      Correct answer: Less expensive than physical modelling
      More expensive than physical modelling
      Correct answer: Can be shared easily
      Need to buy materials and components

      4 Questions

      Q1.
      When exploring a context, we are ...

      creating design ideas.
      Correct answer: identifying design opportunities.
      manufacturing solutions.
      Correct answer: identifying problems to solve.

      Q2.
      The micro:bit has several onboard inputs and outputs, additional offboard input and output components can be connected via the five .

      Correct Answer: pins

      Q3.
      What is the diamond shape on a flowchart used for?

      Outputs
      Start
      Correct answer: Decisions
      End
      Inputs

      Q4.
      Something that can change in a control system is called a .

      Correct Answer: Variable

      To help you plan your 10 design and technology lesson on: Systems approach to design, download all teaching resources for free and adapt to suit your pupils' needs...