Tamil Nadu Board of Secondary Education Class 7 Mathematics Syllabus - Free PDF Download
Tamil Nadu Board of Secondary Education Syllabus 2025-26 Class 7: The Tamil Nadu Board of Secondary Education Class 7 Mathematics Syllabus for the examination year 2025-26 has been released by the Tamil Nadu Board, Tamil Nadu Board of Secondary Education. The board will hold the final examination at the end of the year following the annual assessment scheme, which has led to the release of the syllabus. The 2025-26 Tamil Nadu Board of Secondary Education Class 7 Mathematics Board Exam will entirely be based on the most recent syllabus. Therefore, students must thoroughly understand the new Tamil Nadu Board of Secondary Education syllabus to prepare for their annual exam properly.
The detailed Tamil Nadu Board of Secondary Education Class 7 Mathematics Syllabus for 2025-26 is below.
Academic year:
Tamil Nadu Board of Secondary Education Class 7 Mathematics Revised Syllabus
Tamil Nadu Board of Secondary Education Class 7 Mathematics and their Unit wise marks distribution
Tamil Nadu Board of Secondary Education Class 7 Mathematics Course Structure 2025-26 With Marking Scheme
| # | Unit/Topic | Weightage |
|---|---|---|
| I | Term - 1 | |
| 1.1 | Number System | |
| 1.2 | Measurements | |
| 1.3 | Algebra | |
| 1.4 | Direct and Inverse Proportion | |
| 1.5 | Geometry | |
| 1.6 | Information Processing | |
| II | Term - 2 | |
| 2.1 | Number System | |
| 2.2 | Measurements | |
| 2.3 | Algebra | |
| 2.4 | Geometry | |
| 2.5 | Information Processing | |
| III | Term - 3 | |
| 3.1 | Number System | |
| 3.2 | Percentage and Simple Interest | |
| 3.3 | Algebra | |
| 3.4 | Geometry | |
| 3.5 | Statistics | |
| 3.6 | Information Processing | |
| Total | - |
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Syllabus
Tamil Nadu Board of Secondary Education Class 7 Mathematics Syllabus for Chapter 1: Term - 1
1.1 Number System
- Concept of Integers
- Representation of Integers on the Number Line
- Concept for Ordering of Integers
- Addition of Integers
- Subtraction of Integers
- Subtraction of Integers
- Subtraction of Integers on a Number Line
- Properties of Addition and Subtraction of Integers
- Multiplication of a Positive and a Negative Integers
- Multiplication of Two Negative Integers
- Product of Three Or More Negative Integers
- Properties of Multiplication of Integers
- Closure Property of Multiplication of Integers
- Closure Property of Multiplication of Integers
- Associative Property of Multiplication of Integers
- Distributive Property of Multiplication of Integers
- Multiplicative Identity of Integers
- Division of Integers
- Properties of Division of Integers
- Statement Problems on Integers Using All Fundamental Operations.
1.2 Measurements
- Concept of Perimeter
- Introduction
- Perimeter of a Closed Figure
- Concept of Area
- Introduction
- Convention for Measuring Area
- Types of Quadrilaterals
- Properties of a Parallelogram
- Properties of Rhombus
- Properties of Trapezium
- Area of a Parallelogram
- Perimeter of Parallelogram
- Area of a Rhombus
- Area of the rhombus if base and height are given.
- Area of the rhombus if the diagonals are given.
- Area of Trapezium
1.3 Algebra
- Algebraic Expressions
- Variable
- Constant
- Algebraic Expressions
- Value of Expression
- Number line and an expression
- Terms, Factors and Coefficients of Expression
- Types of Algebraic Expressions as Monomials, Binomials, Trinomials, and Polynomials
- Like and Unlike Terms
- Evaluation of Algebraic Expressions by Substituting a Value for the Variable.
- Addition of Algebraic Expressions
- Subtraction of Algebraic Expressions
- Expressions with Variables
- Balancing an Equation
- The Solution of an Equation
1.4 Direct and Inverse Proportion
1.5 Geometry
- Concept of Line
- Introduction
- Fundamental Properties and Representation of a Line
- Concept of Line Segment
- Definition
- Properties and Measurement of a Line Segment
- Concept of Ray
- Definition
- Properties and Representation of a Ray
- Introduction to Parallel Lines
- Definition
- Properties of Parallel Lines
- Concept of Intersecting Lines
- Definition
- Properties of Intersecting Lines
- Concept of Points
- Definition
- Fundamental Concept of a Point
- Concept of Angle
- Definition
- Properties of angle
- Types of Angles
- Related Angles
- Complementary Angles
- Supplementary Angles
- Concept of Linear Pair
- Concept of Vertically Opposite Angles
- Pairs of Lines - Transversal
- Pairs of Lines - Angles Made by a Transversal
- Pairs of Lines - Transversal of Parallel Lines
- The Perpendicular Bisector
- Introduction
- The Perpendicular Bisector of a Line Segment
- Concept of Angle Bisector
- Angles of Special Measures - 30°, 45°, 60°, 90°, and 120°
1.6 Information Processing
- Tetromino
- Filling rectangular tiles using Tetrominoes
- Route Map
- To find the “Shortest “ route.
Tamil Nadu Board of Secondary Education Class 7 Mathematics Syllabus for Chapter 2: Term - 2
2.1 Number System
- The Decimal Number System
- Concept of Tenths, Hundredths and Thousandths in Decimal
- Concept of Place Value
- Introduction
- Place value System
- Conversion between Decimal Fraction and Common Fraction
- Comparing Decimal Numbers
- Comparison when whole parts equal
- Comparison when whole parts are unequal
- Representing Decimals on the Number Line
2.2 Measurements
- Concept of Circle
- Circumference of a Circle
- Area of Circle
- Area of Pathways
- Circular Pathways
- Rectangular Pathways
2.3 Algebra
- Concept of Exponents
- Laws of Exponents
- Multiplying Powers with the Same Base
- Dividing Powers with the Same Base
- Taking Power of a Power
- Multiplying Powers with Different Base and Same Exponents
- Dividing Powers with Different Base and Same Exponents
- Unit Digit of Numbers in Exponential Form
- Algebraic Expressions
- Variable
- Constant
- Algebraic Expressions
- Value of Expression
- Number line and an expression
- Terms, Factors and Coefficients of Expression
- Like and Unlike Terms
- Degree of Expressions
2.4 Geometry
- Concept of Triangles
- Classification of Triangles (On the Basis of Sides, and of Angles)
- Classification of Triangles based on Sides- Equilateral, Isosceles, Scalene
- Classification of Triangles based on Angles: Acute-Angled, Right-Angled, Obtuse-Angled
- Angle Sum Property of a Triangle
- Exterior Angle of a Triangle and Its Property
- Congruency of Shapes
- Congruence Among Line Segments
- Congruence of Plane Figures
- Congruence of Angles
- Congruence of Triangles
- Criteria for Congruence of Triangles
- SSS Congruence Criterion
- SAS Congruence Criterion
- ASA Congruence Criterion
- RHS Congruence Criterion
2.5 Information Processing
- Tables and Patterns Leading to Linear Functions
- Pascal’s Triangle
Tamil Nadu Board of Secondary Education Class 7 Mathematics Syllabus for Chapter 3: Term - 3
3.1 Number System
- The Decimal Number System
- Rounding of Decimals
- Addition of Decimal Fraction
- Subtraction of Decimal Fraction
- Multiplication of Decimal Fractions
- Multiplication of Decimal Numbers by 10, 100 and 1000
- Division of Decimal Numbers
- Decimal Division through models.
- Division of Decimal Numbers by 10, 100 and 1000
- Division of a Decimal Number by Another Decimal Number
- Division of Decimal Fractions
3.2 Percentage and Simple Interest
- Basic Concept of Percentage
- Conversion between Percentage and Fraction
- Converting Decimals to Percentage
- Converting Percentages to Decimals
- Estimation in Percentages
- Interpreting Percentages
- Ratios to Percents
- Increase Or Decrease as Percent
- Profit or Loss as a Percentage
- Calculation of Interest
- Introduction
- Simple Interest
3.3 Algebra
- Concept of Identity
- Geometrical Approach to Multiplication of Monomials
- Expansion of (x + a)(x + b)
- Expansion of (a + b)2 = a2 + 2ab + b2
- Expansion of (a - b)2 = a2 - 2ab + b2
- Expansion of (a + b)(a - b) = a2-b2
- Inequation
- Solving Linear Inequations
- Rules to solve inequation
- Graphical Representation of Inequation
3.4 Geometry
- Concept of Lines Symmetry
- Figures with one Line of Symmetry
- Figures with two Line of Symmetry
- Figures with more Line of Symmetry
- Concept of Reflection Symmetry
- Translational Symmetry
- Concept of Symmetry
- Symmetry Through Transformations
- Translation
- Reflection: How to reflect a shape about a line?
- Rotation: How to rotate a shape about a point?
- Concept of Circle
- Construction of a Circle When Its Radius is Known
- Construction of Concentric Circles
3.5 Statistics
- Concept of Data Handling
- Data Handling
- Data
- Types of Data
- Collection of Data
- Organisation of Data
- Ungrouped Data
- Grouped Data
- Concept of Representative Values - Average
- Arithmetic Mean - Raw Data
- Concept of Mode
- Concept of Median
3.6 Information Processing
- Scheduling
- Representation of Algorithms
- Flowchart
- Flowchart
- Types of Flowchart: Sequential flowchart, Conditional flowchart.
- Flowchart
