How ExamForge works
Where the questions come from, how every mark gets tagged, how Steven reads a mark scheme, and what the numbers can and can’t tell you.
Built by a practising IGCSE teacher
ExamForge is built by a Cambridge IGCSE teacher who is still in the classroom, with more than ten years teaching Mathematics (0580), Additional Mathematics (0606) and Physics (0625). Every subject is checked by that teacher before it goes live.
Most students know the syllabus. What they don’t know is which topics Cambridge tests most, how the marks are actually awarded, or why an answer that looks right still loses marks. ExamForge puts that in one place: the real questions, the official mark schemes, the history of what gets tested, and Steven to explain each mark.
- teaching Cambridge IGCSE
- 10+ years
- teaching Cambridge IGCSE
- in the classroom every week
- Teaching now
- in the classroom every week
- Maths 0580 · Add Maths 0606 · Physics 0625
- 3 subjects
- Maths 0580 · Add Maths 0606 · Physics 0625
How the exam data is built
2,492 real Cambridge past papers across 23 IGCSE and O Level subjects, 2020–2025. Five steps, the same for every subject.
- 1
Collect
Every published question paper and its official mark scheme, catalogued by syllabus code, paper, variant and exam session.
- 2
Tag
Each question is matched to the topics in the official Cambridge syllabus. Tagging is AI-assisted and checked by the teacher before a subject goes live. A question that tests two topics counts for both.
- 3
Count
Marks and questions are added up per topic, per chapter and per year, straight from the mark scheme totals.
- 4
Analyse
For every topic: total marks, how many years it appeared, when it was last seen, and the longest gap between appearances.
- 5
Practise
Every number links back to the real questions behind it, with their mark schemes, so the data turns straight into revision.
How Steven explains a mark scheme
Steven reads the official Cambridge mark scheme for the exact question you are on, then explains each mark in plain English: what earns it, what the examiner shorthand means (M1, A1, B1dep, oe, nfww), and the mistakes that lose it. He works from the official scheme and never invents an answer of his own.
What Steven is not
Steven is a study aid that explains an official marking scheme. It is not an examiner, not a teacher, and not official Cambridge software. It does not mark your work or guarantee a grade, and it is not a substitute for checking your own answers against the paper.
What the numbers can’t tell you
Historical frequency describes past papers. It does not predict the next one. A topic that appeared every year can still be left out, and a rare topic can still turn up. Use the data to decide what to revise first, not what to skip.