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      Connecting networks

      Lesson details

      Learning outcome

      I can explain how networks are connected together and why it is important they are protected.

      Key learning points

      1. Networks can be physically connected to other networks.
      2. Data can be shared between computers on different networks.
      3. Networks need protecting to keep the information on them secure.
      4. The internet is a network of networks.

      Keywords

      • Router - a device that manages the flow of data between computer networks

      • Network - a group of interconnected computing devices

      • Internet - the global system of interconnected computer networks

      Common misconception

      Because a computer is connected to a network, it will be connected to the internet.

      Not necessarily, it still needs a connection to the internet through a router. Networks can be created and used for many different purposes and that does not always have to involve being connected to the internet.

      Teacher tip

      If possible, you should show your pupils some of the school's physical computer network. This will help them to appreciate what the technology looks like.

      Equipment

      It is useful for pupils to see a variety of computing devices that are around the school or every day life.

      Licence

      This content is © Oak National Academy Limited (2026), 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.
      What is a network?

      a single computer used for gaming
      a device that connects to the internet
      Correct answer: a group of devices that are connected together
      a type of computer game

      Q2.
      What is the internet?

      a group of computers in one building
      a type of computer program
      a device used to store data
      Correct answer: a global system of interconnected computer networks

      Q3.
      Why do computers connect to networks?

      Correct answer: to share information and resources
      to play games offline
      to store files permanently
      to create new devices

      Q4.
      Which of these devices can connect to a network?

      Correct answer: a smartphone
      Correct answer: a computer
      a wall
      Correct answer: a washing machine

      Q5.
      Which of these is an example of a network?

      Correct answer: a computer connected to a printer
      a tablet used offline
      a phone without an internet connection
      a calculator used in school

      Q6.
      What is a secret word or phrase used to access a computer, network or online account?

      Correct Answer: password

      6 Questions

      Q1.
      What does a router do?

      Correct answer: manages the flow of data between networks
      protects computers from viruses
      stores data for future use
      creates computer programs

      Q2.
      Why do networks need protecting?

      to stop them from running too fast
      Correct answer: to keep the information on them secure
      to make them harder to use
      to stop them from connecting to the internet

      Q3.
      What happens when networks are connected to each other?

      Correct answer: they can share information between computers on different networks
      they stop working
      they lose all stored data
      they only work with one type of computer

      Q4.
      Does connecting a computer to a network mean it is connected to the internet?

      Yes, all networks are part of the internet.
      Correct answer: No, it also needs a connection through a router.
      Yes, as long as the computer is turned on.
      No, computers cannot connect to the internet.

      Q5.
      What is one example of a network in everyday life?

      Correct answer: a computer connected to a printer
      a calculator used in school
      a phone without an internet connection
      a tablet used offline

      Q6.
      What is a password used for?

      to delete files from a computer
      to connect devices to the internet
      to stop devices from working
      Correct answer: to access a network securely

      To help you plan your 4 computing lesson on: Connecting networks, download all teaching resources for free and adapt to suit your pupils' needs...