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If you’re looking for some tips to get you started as a Computing teacher or subject lead, take a look at the CAS Secondary main page.

Key Stage 5 (commonly abbreviated as KS5) refers to the two years of schooling in maintained schools in England and Wales normally known as Year 12 and Year 13, when pupils are aged between 16 and 18.

AS and A Level courses build on the knowledge, understanding and skills established at key stage 4 and encourage students to develop a broad range of the knowledge, understanding and skills of computing, as a basis for progression into further learning and/or employment.

AS and A level specifications in computer science must encourage students to develop:

  • an understanding of, and the ability to apply, the fundamental principles and concepts of computer science, including abstraction, decomposition, logic, algorithms and data representation
  • the ability to analyse problems in computational terms through practical experience of solving such problems, including writing programs to do so
  • the capacity for thinking creatively, innovatively, analytically, logically and critically
  • the capacity to see relationships between different aspects of computer science
  • mathematical skills (to express computational laws and processes)
  • the ability to articulate the individual (moral), social (ethical), legal and cultural opportunities and risks of digital technology

For the full guidance on the A-Level subject content, go to: GCE AS and A level computer science

Exam Specifications and Course Information

Links to A Level Exam Board information can be found on the Secondary Home Page.


Here you will find resources produced by CAS community members to support the teaching of computing to 16-18 year olds. All are free to download! Happy browsing!