MarkScheme · instrument desk
Tools that speak examiner.
No sign-up. Check where a raw mark lands, decode command words, plan the weeks left — built from the same schemes we use to mark full papers.
On the desk
Pick an instrument
- Will my grade hold?Results Day: paste a raw mark and published thresholds — see the grade, the gap, then take the November mock pack.Check my grade
- Grade boundary calculatorRaw marks in, A*–E out — percentage and marks to the next boundary for every syllabus we mark.Open calculator
- Command words explorerWhat state, explain, evaluate, and justify actually ask for — and how to earn the marks.Explore words
- IB points calculatorSix subjects plus TOK/EE bonus — total out of 45 and whether you meet the pass conditions.Calculate points
- PUM / UMS calculatorConvert a raw mark to the 0–100 uniform scale using your A–E thresholds.Convert to PUM
- Exam countdown & plannerDays left, revision phase, and how many past papers a week to clear your target.Start countdown
Beyond the estimate
Want feedback on the actual answer, not just a grade?
A boundary check tells you where you landed. MarkScheme tells you why — upload your paper and get mark-by-mark feedback against the real Cambridge scheme.