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NCERT reference page

NCERT Class 12 Maths — Board Mark Weightage Guide

Class 12 board papers follow a predictable mark distribution year after year. This page maps the 13 NCERT chapters into 6 mark-weight groups so students can prioritise revision time where it returns the most marks — not just work through the textbook in order.

13

chapters covered

6

mark-weight groups

~44%

from Calculus

Mark map

Approximate board weightage per group

Relations, Functions & Inv. Trig.

~10 marks

Matrices & Determinants

~13 marks

Calculus — Differentiation

~17 marks

Calculus — Integration

~17 marks

Vectors, 3D & Linear Programming

~17 marks

Probability

~8 marks

Board paper total

80 marks theory + 20 marks internal. The mark map above covers the 80-mark written paper.

Chapters by board weightage

Revise by mark priority, not by chapter number

6 mark-weight groups

Each group shows which NCERT chapters it covers and what to focus on for the board paper. The mark figures are representative of the standard CBSE blueprint.

Relations, Functions & Inverse Trigonometry

~10 marks

Mostly 1–2 mark questions; master domain/range of inverse trig and composition of functions for quick guaranteed marks.

  • Relations and Functions
  • Inverse Trigonometric Functions

Algebra: Matrices & Determinants

~13 marks

A reliable scoring section — properties of determinants and matrix operations follow fixed patterns that repeat every year.

  • Matrices
  • Determinants

Calculus — Differentiation

~17 marks

Highest single-section weightage. Prioritise chain rule, implicit differentiation, and maxima/minima word problems.

  • Continuity and Differentiability
  • Application of Derivatives

Calculus — Integration

~17 marks

Learn the standard integral forms by heart. For area problems, sketch the region before integrating.

  • Integrals
  • Application of Integrals
  • Differential Equations

Vectors, 3D Geometry & Linear Programming

~17 marks

Vector and 3D questions have high formula density; Linear Programming is fully graphical and reliably scorable.

  • Vector Algebra
  • Three Dimensional Geometry
  • Linear Programming

Probability

~8 marks

Bayes' theorem and conditional probability appear every year. One medium question guaranteed in board papers.

  • Probability

Practice bridge

Turn the syllabus into a board-style practice session

Use these ready-made prompts in the practice test generator. Copy any prompt into the question input, pick the mark type, and generate a targeted set.

Prompt 1

Generate 5 board-style 4-mark questions on Application of Derivatives covering maxima, minima, and rate of change.

Prompt 2

Create a mixed Integration practice set with substitution, integration by parts, and definite integrals.

Prompt 3

Generate a full-section Matrices and Determinants drill with 1-mark, 2-mark, and 4-mark questions.

How to use this page

Start with Calculus, not Chapter 1

With two months left before boards, working through chapters in textbook order wastes time on low-weight topics while Calculus — worth roughly 44% of the paper — waits until the end. Start with Calculus and Matrices (13 marks, high predictability) first, then fill in the rest of the syllabus in whatever order fits your remaining time.

The board paper rules in the sidebar come from common examiner patterns and show exactly where step marks are gained or lost. Pair them with the AI practice test to move from syllabus awareness to active question practice in the same sitting.

Official resources

From NCERT directly