Lesson 3: RFID

This lesson covers the topic of RFID (Radio Frequency Identification) and offers children the opportunity to recognise the uses of RFID, in which circumstances it might be used and to discuss how encoding keeps data safe.

Before the lesson

Learning objectives

  • To recognise the uses of RFID
  • To know how encoding keeps data safe

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

Success criteria

Cross-curricular links

Attention grabber

Main event


Pupils needing extra support: Should use a much shorter code, perhaps a three digit code, and work with a partner.


Pupils working at greater depth: Could extend their system to have a three or four stage encoding system by adding in two further columns which complete a new sum and then ‘undo’ it. They will need to think about which order the sums need to be completed in to ensure that they are successfully decoded.

Pupils could also try much longer numbers, e.g. 16 digit codes like on bank cards.


Extension Opportunity: Children could try to break each other’s codes – i.e. what did the child multiply or add to the code to create the transfer code?

Wrapping up

Assessing pupils' progress and understanding


Created by:
Richard Williams,  
Computing specialist
Richard is a Year 6 Teacher at St. Pancras Primary School. Richard’s passion for teaching was recognised when he received Suffolk’s ‘Raising The Bar’ award for Innovation 2016. With his class he made the world’s first guided VR:360 school tour…
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