Lesson 4: Real world networks

Children apply their knowledge of a file’s journey in a new context to help them understand how other real world networks operate

Before the lesson

Download classroom resources

Learning objective

  • To recognise networks in the real world

National curriculum

Pupils should be taught to:

  • Understand computer networks, including the internet; how they can provide multiple services, such as the World Wide Web, and the opportunities they offer for communication and collaboration
  • Select, use and combine a variety of software (including internet services) on a range of digital devices to design and create a range of programs, systems and content that accomplish given goals, including collecting, analysing, evaluating and presenting data and information

Success criteria

Cross-curricular links

Attention grabber

Main event


Pupils needing extra support: If real world networks are too abstract, work as part of a guided group with adult support, using the school network with the pictures and string that you looked at as a group last time, and make a table model of the school network. Work through traffic light role play with reading support.


Pupils working at greater depth: Should add in other variables to their network, such as more traffic lights, the supermarket, updating the database as well as the till, the drive-thru, passing information to the cooks and food packers, different transactions at the bank.

Wrapping up

Assessing pupils' progress and understanding


Created by:
Sway Grantham,  
Computing specialist
Sway Grantham (@SwayGrantham) is a Primary School Teacher, a CAS Master Teacher and Specialist Leader in Education for Primary ICT. She also has a BCS Certificate in Computer Science Teaching (Primary). She has written several curricula and conducted research into the…
Find out more