Essential algorithms for A Level Computer Science


Algorithms, Big O notation and the production of pseudocode are aspects of A level study that students often struggle with.

There are many online sources that have too much detail and complex coded solutions. Course text books often lack the depth students would benefit from. This book explains all the algorithms in detail that are required by the major English and Welsh examination boards.

Each chapter covers one algorithm or data structure and includes:

  • a description in plain English
  • typical uses
  • pseudocode
  • step-by-step illustrations
  • fully working code in both Python and Visual Basic
  • the space and time complexity explanations (Big O)

This book is supported by our free You Tube videos available at:

Note: If you are unable to order directly from Amazon please contact us:
Note: You do not need to purchase this product if you are are a member, a PDF copy you can share with students is already included in your members download area.


SKU: ess-algor-book-alevel Categories: , ,