CBSE · Class 9
Mathematics
Every chapter has the same tabs: Notes with diagrams, Practice Problems with worked solutions, a Question Bank, Assertion & Reason practice and answers to the NCERT exercises. Chapters are listed in textbook order (Ganita Manjari).
➗Part 1 Chapters 1–8
CHAPTER 1Orienting Yourself: The Use of CoordinatesNotes with diagrams · Practice Problems · Question Bank · Assertion & Reason · NCERT Q&AReady60 MCQs60 A&RCHAPTER 2Introduction to Linear PolynomialsPolynomials and degree, linear patterns, growth and decay, y = ax + b, slope and intercept, graphs of lines.Ready60 MCQs60 A&RCHAPTER 3The World of NumbersNatural numbers to reals: zero, integers, rationals, irrationals, decimal expansions and cyclic numbers.Ready60 MCQs60 A&RCHAPTER 4Exploring Algebraic IdentitiesIdentities for squares and cubes, geometric models, factorisation, algebra tiles and rational expressions.Ready60 MCQs60 A&RCHAPTER 5I’m Up and Down, and Round and RoundCircles: chords, arcs and angles, circumcircle, cyclic quadrilaterals and concyclic points.Ready60 MCQs60 A&RCHAPTER 6Measuring Space: Perimeter and AreaCircumference and π, arc length, areas of parallelograms, triangles and circles, Heron’s and Brahmagupta’s formulas.Ready60 MCQs60 A&RCHAPTER 7The Mathematics of Maybe: Introduction to ProbabilityRandomness, the probability scale, experimental and theoretical probability, sample spaces, events and tree diagrams.Ready60 MCQs60 A&RCHAPTER 8Predicting What Comes Next: Exploring Sequences and ProgressionsSequences, explicit and recursive rules, arithmetic and geometric progressions, sums, fractals and growth.Ready60 MCQs60 A&R
➗Part 2 Chapters 9–14
CHAPTER 9Propositions and their ConversesPropositions, converses, counterexamples and testing whether a statement and its converse are true.Ready60 MCQs60 A&RCHAPTER 10How Quantities Combine: Understanding DataWeighted mean, mixtures, custom weights, stacked bar charts and 100% stacked bar charts.Ready60 MCQs60 A&RCHAPTER 11The World of AlgorithmsAlgorithms for addition, divisors and gcd: Euclid’s subtraction method and Āryabhaṭa’s division algorithm.Ready60 MCQs60 A&RCHAPTER 12QuadrilateralsQuadrilaterals, parallelograms and their converses, the Midpoint Theorem, centroid, Varignon parallelogram and tiling.Ready60 MCQs60 A&RCHAPTER 13Two Variables, One LineLinear equations in two variables, slope-intercept form, substitution, elimination and graphical solutions.Ready60 MCQs60 A&RCHAPTER 14Math of Space: Surface Area and VolumeSurface area and volume of cuboids, cylinders, cones, pyramids, spheres and hemispheres, with guesstimates.Ready60 MCQs60 A&R