Lesson 3: Through the maze

Building on their understanding of algorithms, children explore activities on the software: Lightbot, directing a robot through a maze

Before the lesson

Download classroom resources

Learning objective

  • To plan algorithms that will solve problems

National curriculum links

Pupils should be taught to:

  • Understand what algorithms are, how they are implemented as programs on digital devices, and that programs execute by following precise and unambiguous instructions
  • Create and debug simple programs
  • Use logical reasoning to predict the behaviour of simple programs

Success criteria

Cross-curricular links

Attention grabber

Main event


Pupils needing extra support: Should use the Activity: Lightbot blocks mini figure or code cards to help visualise and plan their algorithms before writing them.

Pupils working at greater depth: Should be encouraged to explain their code choices as they progress through the tasks and to use loops or ‘procedures’ in their code.

Wrapping up

Assessing pupils' progress and understanding


Created by:
Siobhan Morgan,  
Computing specialist
Head of Computing at Exeter Junior School, Siobhan Morgan has nine years of computing teaching experience as well as experience from her role of ‘Subject Genius for Computing’ on TES. Siobhán enjoys spending time with her family and searching for the Gruffalo…
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