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CBSE Class 9 Maths (2026-27)
Every chapter of the new 2026-27 NCERT book, Ganita Manjari, with notes, concept pages, mind maps and MCQ quizzes. Start with the chapter you need today, then move into its concept pages and learning map for tighter revision.
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Chapters
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Orienting Yourself: The Use of Coordinates
Coordinates help us describe the exact position of a point on a line, on a plane, on a map, or on a screen. Instead of saying a point is somewhere near the middle, we use ordered numbers to locate it clearly. This chapter builds the base for coordinate geometry. Students learn axes, quadrants, plotting points, special points on axes, distance between two points, and simple applications such as checking side lengths of triangles and quadrilaterals.
Introduction to Linear Polynomials
Linear polynomials help you connect algebra with straight-line patterns. In this chapter, the focus is on identifying polynomial terms, degree, coefficients, constants, zeros, solutions, and simple graphs. For exams, you should be able to substitute values carefully, verify ordered pairs, plot a straight line from two or more points, and read simple real-life relationships from equations.
The World of Numbers
This chapter builds the complete idea of numbers used in school mathematics, starting from natural numbers and moving through integers, rational numbers, irrational numbers, and real numbers. For exams, you should focus on classification of numbers, number-line representation, decimal expansion, and standard methods for finding numbers between two given numbers.
Exploring Algebraic Identities
Algebraic identities are fixed algebra rules that help you expand, simplify, and factorise expressions quickly. This chapter builds the habit of recognising patterns instead of multiplying every term again and again. For CBSE-aligned practice, you should know the standard identities, where each identity can be applied, and the common sign errors that happen during expansion or factorisation.
I'm Up and Down, and Round and Round
This chapter builds the idea of a circle from its centre, radius, diameter, chords, arcs and angles. For CBSE-aligned preparation, you should connect each result with a clear diagram because most circle questions become simple after marking the centre, equal radii, chord, and required angles. The main exam value of this chapter is theorem use: perpendicular from centre to chord, equal chords, angle at centre and circumference, angles in the same segment, and cyclic quadrilateral properties. A good answer usually needs a labelled figure, the correct theorem statement, and one or two logical steps.
Measuring Space: Perimeter and Area
This chapter trains you to measure boundaries and surfaces using suitable formulas. Perimeter answers how much boundary is covered, while area answers how much surface is occupied. CBSE-style questions usually test formula selection, unit care, diagram reading, and composite figures. A strong student first identifies the shape, marks given values, chooses the correct formula, and writes the final unit properly.
The Mathematics of Maybe: Introduction to Probability
Probability helps you express chance using numbers instead of only words like sure, maybe, or doubtful. In Class 9, the focus is on simple random experiments, outcomes, events, and comparing chances in an exam-friendly way. This chapter is best revised through coins, dice, cards, classroom surveys, and repeated trials. You should learn when to count all possible outcomes, when to use actual trial data, and how to avoid mixing experimental and theoretical probability.
Predicting What Comes Next: Exploring Sequences and Progressions
Sequences help us study numbers or quantities arranged in a particular order. In exams, students are usually asked to identify the pattern, find a missing term, write a rule, or decide whether the situation follows addition or multiplication. Progressions are special sequences with a regular pattern. Arithmetic progressions use a constant difference, while geometric progressions use a constant ratio. This chapter builds careful thinking for formula use, word problems, and pattern-based reasoning.
For teachers
Make a CBSE Class 9 Maths question paper in minutes
A maths question paper generator for Class 9: pick chapters and marks, and get a paper with MCQs, case-based and long-answer questions. Questions come from an NCERT-grounded question bank covering the chapters above, such as Orienting Yourself: The Use of Coordinates, Introduction to Linear Polynomials or The World of Numbers.
- • Sample paper generator for Class 9 unit, half-yearly and pre-board tests
- • Blueprint-balanced sections with correct total marks
- • Free plan: 5 papers a month, downloaded as PDF
- • Paid plans add Word export and full answer keys