The CBSE Class 9th Maths syllabus for 2024-2025 is designed to build a strong foundation in mathematics, covering essential concepts that will be further developed in higher grades. Here's a detailed breakdown of the syllabus:
Unit 1: Number Systems (10 Marks)
 * Real Numbers:
  * Review of representation of natural numbers, integers, and rational numbers on the number line.
  * Rational numbers as recurring/terminating decimals.
  * Operations on real numbers.
  * Examples of non-recurring/non-terminating decimals.
  * Existence of non-rational numbers (irrational numbers) such as √2, √3 and their representation on the number line.
  * Decimal expansions of real numbers.
Unit 2: Algebra (20 Marks)
 * Polynomials:
  * Definition of a polynomial in one variable, with examples and counterexamples.
  * Coefficients of a polynomial, terms of a polynomial, and zero polynomial.
  * Degree of a polynomial.
  * Constant, linear, quadratic, and cubic polynomials.
  * Monomials, binomials, trinomials.
  * Factors and multiples.
  * Zeros of a polynomial.
  * Remainder Theorem with examples.
  * Factor Theorem.
  * Factorization of quadratic polynomials.
  * Algebraic expressions and identities.
 * Linear Equations in Two Variables:
  * Introduction to equations in two variables.
  * Linear equations in two variables.
  * Solutions of a linear equation in two variables.
  * Graph of a linear equation in two variables.
Unit 3: Coordinate Geometry (4 Marks)
 * Coordinate Geometry:
  * Cartesian coordinate system.
  * Plotting points in a Cartesian plane.
  * Coordinates of a point.
  * Distance between two points.
Unit 4: Geometry (27 Marks)
 * Introduction to Euclid's Geometry:
  * Euclid's definitions, axioms, and postulates.
  * Basic geometric concepts.
 * Lines and Angles:
  * Lines, line segments, rays, and angles.
  * Types of angles.
  * Pairs of angles (complementary, supplementary, adjacent).
  * Intersecting lines and non-intersecting lines.
  * Transversal and angles formed by a transversal.
  * Parallel lines and their properties.
 * Triangles:
  * Triangles and their types.
  * Congruence of triangles.
  * Criteria for congruence of triangles (SSS, SAS, ASA).
  * Inequalities in triangles.
 * Quadrilaterals:
  * Quadrilaterals and their types.
  * Properties of quadrilaterals.
 * Areas of Parallelograms and Triangles:
  * Area of a parallelogram.
  * Area of a triangle.
  * Relationship between the areas of triangles and parallelograms.
 * Circles:
  * Circles and related terms (radius, diameter, chord, arc, etc.).
  * Angles subtended by a chord at the center.
  * Perpendicular from the center to a chord.
  * Chords and their distances from the center.
  * Cyclic quadrilaterals.
 * Constructions:
  * Construction of triangles using compass and ruler.
  * Construction of bisectors, perpendiculars, etc.
Unit 5: Mensuration (13 Marks)
 * Areas:
  * Area of a triangle using Heron's formula.
  * Area of a quadrilateral.
 * Surface Areas and Volumes:
  * Surface areas and volumes of cubes, cuboids, spheres, hemispheres, and right circular cylinders/cones.
Unit 6: Statistics and Probability (6 Marks)
 * Statistics:
  * Collection of data.
  * Presentation of data (bar graphs, histograms, frequency polygons).
  * Measures of central tendency (mean, median, mode).
 * Probability:
  * Probability of an event.
This detailed syllabus provides a comprehensive overview of the topics covered in CBSE Class 9th Maths. It's crucial for students to thoroughly understand these concepts as they form the basis for higher-level mathematics in the future. Remember to refer to the official CBSE website for the most accurate and updated syllabus.