What is step marking?
Step marking is awarding marks for the stages of an answer rather than only for the final result. A student who sets a problem up correctly and arrives at the wrong number has still earned something, and on most papers it is most of the marks. It is the single idea that decides what a partly-correct answer is worth.
The thing to know before the rest of this page. There is no general rule for how an answer splits. The split belongs to the question, and it is published in that paper's own marking scheme. Anyone who tells you a three-mark numerical is always one-one-one has not read many schemes. What follows is the shape, and where to look for your own paper's actual figures.
The short answer
A question worth more than one mark is normally made of stages, and each stage carries part of the total. The examiner reads for those stages and awards them where they appear. So a five-mark Physics numerical is not five marks for the number at the bottom — it is a mark for the relationship used, marks for substituting and rearranging, a mark for the arithmetic, and a mark for the answer carrying its unit.
Two consequences follow, and they run in opposite directions. A wrong final answer is usually not a zero. And a right final answer with no working above it frequently does not collect full marks either, because the stages the scheme is paying for are not on the page.
Where the split comes from
From the question, not from a convention. The clearest way to see that is to put three subjects beside each other. These are read from CBSE's own published marking schemes, and the unit of marking is different in each:
| Subject | What earns a mark | The catch |
|---|---|---|
| Class 12 Physics | The formula, substitution and rearrangement, the arithmetic, and the unit on the answer. | Stating the formula does earn a mark here. |
| Class 10 Maths | Forming the equation from the words, reducing it, solving it, and choosing the sensible root. In geometry the figure is marked in its own right. | There is usually no separate mark for writing the formula — the opposite of Physics. |
| Class 12 Accountancy | The line. Typically half a mark a posting, or a mark an entry. | Almost nothing is a single final number, so there is barely such a thing as "the answer". |
A student who learns "step marking means show your working" and applies it uniformly will write out formulae in Maths for a mark that does not exist, and skip the unit in Physics for one that does. The three pages behind that table go through real questions from real schemes: step marking in Class 12 Physics, step marking in Class 10 Maths, and step marking in Class 12 Accountancy.
What CBSE instructs, and what it does not
CBSE issues general instructions to its examiners alongside each marking scheme. Several of them are really instructions about step marking, and they are more generous to the student than most teachers assume. In our own words, not as quotations:
- An error is penalised once, not deducted again for its knock-on effects.
- Examiners are told explicitly not to hesitate to award full marks where the answer deserves them. Holding back the last mark on principle is treated as an error, not as rigour.
- A student who gives a correct answer in their own words, rather than the scheme's words, is to be given the marks. The scheme is described as suggested value points, not as the complete answer.
- A tick must never be written where no mark is being awarded — it is named as the commonest thing examiners get wrong, because afterwards it reads to everyone as a mark earned and then lost in the totalling.
And one widely-repeated thing that is not in there. "An error is charged once" is often restated as "every later step is then credited from the student's wrong figure". Those are different sentences, and only the first one is published. We searched 1,162 CBSE marking scheme and instruction files for the phrase carried forward; it appears in none of them. The board says where the penalty falls. It does not publish a mark-by-mark follow-through rule, which is why two careful examiners can still disagree about the back half of a long answer. The convention, and where it parts company with the instruction.
Step marking in CBSE Class 10
The mechanics are the same as Class 12; what differs is the paper. Class 10 carries more short-answer questions, where the number of stages is small and a single missed line is a larger share of the total. Two things are worth a Class 10 student knowing specifically:
- In Maths, the figure is marked in geometry questions — sometimes for two of five marks — so a correct answer with no diagram is leaving marks on the table.
- In Science, the stages are often name the thing, state the relationship, apply it. A student who names the law and stops has collected a real mark, which is worth knowing at the point where they are deciding whether to attempt a question at all.
Class 10 answer books are still marked on paper. CBSE moved Class 12 to on-screen marking in February 2026; the marking rules did not change with it.
When step marking does not apply
It is not universal, and assuming it is costs students marks in exactly the places where there is no partial credit to be had.
| Question type | How it is marked |
|---|---|
| Multiple choice, one mark | The option is right or it is not. No working is read. |
| Any one-mark question | All or nothing on the final answer. There is no method mark inside a single mark to award. |
| Fill in the blank, true or false | The same. The answer is the whole of it. |
| A wrong method that reaches the right answer | No published rule, in any board document we hold. It is a judgement your centre has to make. |
What no board decides for you
This is the part that actually produces two different marks for the same script. We looked through every CBSE, CISCE and GSEB document we hold. On the following, none of them instructs an examiner at all:
- How to round a half mark, at the question total or the paper total. Schemes award half marks; no rounding rule is given.
- Units and significant figures — no deduction rule, and no separate mark, even in Maths, where we read the schemes from 2022 through 2025–26 and found nothing in either direction.
- What happens to an answer nobody can read. The word illegible does not appear.
- A correct answer with no working shown.
CISCE publishes model answers and examiner commentary but no examiner instructions at all, and GSEB publishes answer keys and blueprints rather than a theory scheme — so a teacher in an ICSE or state-board school has nothing to consult on any of the above even in principle. The longer list, and what to write down before your next test.
Common questions
What does step marking mean, in one sentence?
Marks are given for the stages of an answer, not only for the final result, so a student who works correctly to a wrong number still earns the stages they got right.
Is step marking the same as partial marking?
In ordinary use, yes — both describe awarding part of a question's marks for part of an answer. "Step marking" is the phrasing used in Indian school marking; partial credit is the more common term elsewhere.
Do I get marks for writing the formula?
It depends on the subject, and this is the most common thing students get wrong. In Class 12 Physics the formula typically carries a mark of its own. In Class 10 Maths it usually does not — the marks sit on forming and solving the equation. Your paper's marking scheme is the authority for your paper.
Will a wrong answer still get marks?
Usually some, on any question worth more than one mark, provided the working is on the page. On a one-mark question, no — there is nothing to split.
Does step marking apply to MCQs?
No. A one-mark multiple-choice question is right or wrong, and the working is not read.
Who decides how many marks each step is worth?
The board, in the marking scheme published for that specific paper. For an internal test, the person who set the paper — which is why writing the split down before the first script is marked matters more than it sounds. What a marking scheme contains.
See where the steps were awarded on one of your own papers.
Send a test your students have already written, with your marks on it, and compare it question by question. The first paper is free.