How to score 95+ in ICSE Class 10 Maths

Every April, someone sits across the desk and asks for the shortcut. Usually a parent. Sometimes the student, which is braver. There is no shortcut. There is a plan, and the students who actually follow it — not the version where you nod along and then open Instagram — tend to finish between 92 and 98. This is the plan, the same one we hand out at the centre.

April to June: concepts, nothing else

No past papers yet. No timed anything. Three months on the machinery: what a quadratic actually is, why the remainder theorem works, what similarity means before you touch a single “prove that” question. We go chapter by chapter, and the rule is simple — the student explains the idea back to us before they earn the exercise. If you cannot say it, you do not own it yet.

Commercial maths goes first. GST, Banking, Shares and Dividends. These chapters are arithmetic dressed up in vocabulary, and they build confidence fast. A student who believes they are “bad at maths” usually just needs three weeks of getting sums right.

July to September: the same problem, ten ways

This is where tuition earns its fee. The board does not test whether you have seen a problem. It tests whether you recognise it wearing different clothes. So from July we drill variants — the trig identity flipped around, the circle theorem hiding inside a cyclic quadrilateral, the quadratic word problem about upstream speed that is secretly last week's one about filling a tank. We keep a variants sheet per chapter. By September it runs to about forty problems per chapter, and by then a student has seen most of the disguises the examiner owns.

October onwards: full papers, twice a week

From October the syllabus is done and the job changes. Two full papers a week, timed, corrected the way a board examiner corrects — with the marking scheme open on the desk. Twenty-odd papers before the prelims, more after. Yes, students groan. The groaning stops around December, when the paper starts feeling short.

The error notebook

One notebook. Every mistake from every test goes into it: the question, the wrong step circled, the correct step written out, and one line on why it happened. “Forgot to state the theorem.” “Rounded too early.” “Read diameter as radius.” The week before boards, the student does not revise the textbook. They revise this notebook. It is the highest-yield document they will ever own, and it costs forty rupees.

Where the marks actually bleed

• Circles. Students find the angle, write the answer, skip the reason. ICSE gives a mark for the stated theorem. One mark, three or four times a paper, every paper. That is the gap between 91 and 95 right there.
• Heights and distances. The diagram is the question. Draw the angle of depression from the wrong line and the whole sum is gone — all four marks. And the rounding: when the paper says “correct to three significant figures”, it means it.
• Statistics graphs. The ogive looks like free marks and behaves like a minefield. Scale not written. Points plotted on class marks instead of boundaries. A ruler used where a smooth curve was wanted. Examiners deduct for each of these, quietly.

Managing the paper itself

The paper is 80 marks in two and a half hours: Section A compulsory for 40, then four questions out of seven in Section B. Use the 15 minutes of reading time to pick your four Section B questions — do not decide mid-paper. The budget we give: 70 minutes for Section A, 65 for Section B, 15 to check. Checking means re-reading the question, not admiring your handwriting. Most “silly mistakes” are reading mistakes.

That is the whole plan. Ten months, no drama, one notebook. The students who cross 95 are almost never the ones who were brilliant in April. They are the ones still doing papers in February while everyone else was panicking. If your child starts this next week, they are on time.