IB CS Assessments
Guidance for the assessed components of the IB Diploma Programme Computer Science course. EduCS.me is an independent teaching resource: it is currently aligned with the IB Computer Science syllabus but is not affiliated with the IB.
| # | Topic | Key Concepts |
|---|---|---|
| 1 | Internal Assessment | A computational solution to a problem you choose: you design and build the product, then document it across five criteria (30 marks). The pages walk through each criterion, with planning and testing templates and common mistakes. |
| 2 | Extended Essay | A 4,000-word independent research essay in computer science. The pages cover topic selection, research and writing, the criteria, reflection, a timeline and pitfalls. |
| 3 | Case Study | The scenario released each year, researched across the year and examined in Paper 1 Section B. The 2027 edition, Generative AI for image creation, covers techniques, models, ethics, a glossary trainer and exam strategy. |
Where to start
- Building your project? Start with the IA overview, then keep the JavaFX Cookbook open while you build.
- Writing an essay? The EE introduction covers how a CS essay differs from a CS project.
- Preparing for Paper 1? The Case Study section covers this year’s pre-seen scenario and how Section B is marked.