How I check.
Three commitments, each turned into checks that every pack must pass before it is published: quality, originality and integrity.
Quality
Every question is solved twice
Once when it is written, and once more by an independent reviewer who sees only the question. If the two solutions disagree, the question is withdrawn until the difference is resolved.
Every result is recomputed by software
Derivatives, roots, maxima and numerical answers are recalculated by code before each release. The check is kept and run again whenever a question changes.
Levels are measured, not guessed
I measured how marks are spread across ten recent official papers: about a quarter for direct application, half for typical exam questions and a quarter for the final, demanding parts. Each pack states its own measured balance.
Markschemes follow IB conventions
M, A, R, AG and FT marks, alternative methods, and notes on the answers that do not earn credit — written so that two teachers marking the same script reach the same total.
Every page is looked at
The final PDF is checked page by page as an image: no overlapping labels, no cut boxes, no point off its curve.
Originality
No question is taken from past papers, textbooks or other websites — not copied, not paraphrased, not disguised with new numbers. Each one starts from a syllabus point and an IB command term, with a context and a sequence of parts invented for the pack. Contexts that are too familiar are replaced. The origin of every question is recorded.
Integrity
- Honest about AI. Everything here is written and verified by me, a practising IB mathematics teacher, and produced with AI assistance. I say so, because the checks above are what make the result trustworthy.
- Nothing official, nothing predicted. I never claim to be official, and I never sell “predicted papers”. Hence is not affiliated with or endorsed by the International Baccalaureate Organization.
- Academic integrity first. I do not produce material that helps students get around the IB's rules, including anything written for their internal assessment.
Corrections
If you find an error, tell me at hello@hencemaths.com. I correct it within 72 hours, publish the corrected version, and every buyer receives it at no cost. Corrections are listed on the corrections page.