Hartismere School

Est. 1451. An outstanding coeducational secondary school & sixth form college and England's first academy

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Coding Challenges for GCSE and A Level Computer Science

Attached is a collection of coding challenges. The best way to learn and get better at programming is to practise, but it is often difficult to know what to make. Working through these challenges will increase you skill set and familiarity with programming. 

Remember, we program using python in high school (years 7-11) and C# at sixth form. 

Programming IDEs (or you can code online using Replit)

Python: Thonny, Hartismere python online (no saving)

C#: Sharp Develop (old but lightweight), Visual Studio Community

Documents

In this section...

Taking A Level Computer Science

A Level CS: Algorithm Assembly Instructions

How robots are taking over warehouse work

Toyota Virtual Plant Tour

See also...

Programming

Key Stage 3 practical sessions information - updated for September 2025

Higher Education

Personal Development

Sport and PE

Labour Market Information (LMI)

Design and Technology

Languages

Creative and Performing Arts

Binary addition 2

Explore...

Candidate Information - Coursework Assessments

The Wave: Tim becomes Wenger's bodyguard (clip 6 of 9)

CPU Fetch-Decode-Execute Animation

On your exam day

Examination Certificates

1.2.3 Programming techniques Test #1

GCSE Film Studies TIMELINE

C# Cook Book // Tic Tac Toe (GUI)

C# Yellow Book

The Wave - authoritarianism

New...

Chicago marketing & front of house team

House Weeks

December Mock Examinations

Hartismere 200

Sixth Form Curriculum and Programme of Study

January 2026 Examinations

Local Governing Body Information

Parents Evening :: Year 12

Discover...

Programming GCSE CS A Level CS Computer Science GCSE C# Digital Test Food Support Robmiles.Com Repl.It Art Girls Cinema Creative iMedia C# Practice Science Transport Lessontest TED Year 8 A Level Computing

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