Chapter 1 (Samacheer Kalvi)
Set Language (கணமொழி)
Set notation, types of sets, Venn diagrams, operations on sets, and De Morgan's laws.
The Class 9 TN Board syllabus marks the start of board-level rigour. Number systems, polynomials, coordinate geometry, Euclid's geometry, and probability form the core of this challenging year.
Last updated: 5 May 2026
The Class 9 TN Board Maths syllabus on SparkEd covers 9 chapters aligned to the latest TN Board curriculum, spanning number systems, algebra, geometry, mensuration, data and statistics, trigonometry and coordinate geometry. Every chapter on this page links to a topic guide with concept notes, a free PDF worksheet at three difficulty levels, and an interactive practice module with instant feedback.
Class 9 maths builds the foundation that the next year's chapters depend on, so consistent weekly practice matters more than last-minute cramming. The Class 9 TN Board syllabus marks the start of board-level rigour. Number systems, polynomials, coordinate geometry, Euclid's geometry, and probability form the core of this challenging year.
How to use this page: open a chapter's Topic Guide for the concept refresher, switch to Practice for graded questions, and download the PDF worksheet for offline use. Each chapter has around 60 questions across easy, medium, and hard sets — enough material for a full revision cycle leading up to school assessments and TN Board board-aligned tests.
Chapter 1 (Samacheer Kalvi)
Set notation, types of sets, Venn diagrams, operations on sets, and De Morgan's laws.
Chapter 2 (Samacheer Kalvi)
Rational and irrational numbers, decimal expansion, surds, and rationalisation.
Chapter 3 (Samacheer Kalvi)
Polynomials, factorisation, algebraic identities, and linear equations in two variables.
Chapter 4 (Samacheer Kalvi)
Triangles, quadrilaterals, circle theorems, and geometric constructions.
Chapter 5 (Samacheer Kalvi)
Cartesian plane, distance formula, section formula, and area of triangle.
Chapter 6 (Samacheer Kalvi)
Trigonometric ratios, standard angles, complementary angles, and identities.
Chapter 7 (Samacheer Kalvi)
Surface area and volume of cubes, cuboids, cylinders, cones, and spheres.
Chapter 8 (Samacheer Kalvi)
Measures of central tendency — mean, median, mode for grouped and ungrouped data.
Chapter 9 (Samacheer Kalvi)
Classical probability, experimental probability, and complementary events.