Secondary Class 9 & 10 Mathematics, 2023, NCTB, English
Secondary Class 9 & 10 Mathematics, 2023, NCTB, English
The textbooks of secondary level have been written and compiled according to the revised curriculum 2012 in accordance with the aims and objectives of National Education Policy-2010. Contents and presentations of the textbooks have been selected according to the moral and humanistic values of Bengali tradition and culture and the spirit of Liberation War 1971 ensuring equal dignity for all irrespective of caste and creed of different religions and sex.
Honorable Prime Minister, Government of the People’s Republic of Bangladesh, Sheikh Hasina expressed her firm determination to make the country free from illiteracy and instructed the concerned authority to give free textbooks to every student of the country. National Curriculum and Textbook Board started to distribute textbooks free of cost since 2010 according to her instruction. In its continuation, this textbook has been reviewed and updated with a view to create a developed and resourceful Bangladesh keeping vision 2041 ahead.
Secondary Class 9 & 10 Mathematics, 2023, NCTB, English
Secondary Class 9 & 10 Mathematics contents
Chapter 1 : Real Numbers
- Real Numbers
- Classification of Real Numbers
- Decimal Fractions
- Similar and dissimilar repeating decimal fractions
- Addition and subtraction of repeating decimal fractions
- Multiplication and division of repeating decimal fractions
- Infinite decimal fractions
- Real Numbers Exercises 1
Chapter 2 : Sets and Functions
- Sets of Mathematics
- Ordered Pair
- Sets and Functions Exercises 2.1
- Relations of Mathematics
- Functions of Mathematics
- Domain and Range
- Sets and Functions Exercises 2.2
Chapter 3 : Algebraic Expressions
- Algebraic Expressions
- Algebraic Formulae
- Algebraic Expressions Exercises 3.1
- Formulae of Cubes
- Algebraic Expressions Exercises 3.2
- Factorization of Mathematics
- Algebraic Expressions Exercises 3.3
- Remainder Theorem
- Algebraic Expressions Exercises 3.4
- Forming and applying algebraic formulae in solving real life problems
- Algebraic Expressions Exercises 3.5
Chapter 4 : Exponents and Logarithms
- Exponents or Indices
- n th Root of a
- Exponents and Logarithms Exercises 4.1
- Logarithms of Mathematics
- Exponents and Logarithms Exercises 4.2
- Scientific or Standard Form of Numbers
- Characteristics of Common Log
- Mantissa of Common Log
- Exponents and Logarithms Exercises 4.3
Chapter 5 : Equations in One Variable
- Equations in One Variable
- Equation and Identity
- Solving Linear Equations
- Usage of linear equations
- Equations in One Variable Exercises 5.1
- Quadratic Equations in One Variable
- Usage of quadratic equations
- Equations in One Variable Exercises 5.2
Chapter 6 : Lines, Angles and Triangles
- Lines, Angles and Triangles
- Concepts of space, plane, line and point
- Euclid’s Axioms and Postulates
- Plane Geometry
- Proof of Mathematical statements
- Geometric proof
- Lines, Angles and Triangles Exercises 6.1
- Line, Ray, Line Segment
- Parallel lines
- Triangle of Mathematics
- Lines, Angles and Triangles Exercises 6.3
Chapter 7 : Practical Geometry
- Construction of Triangles
- Practical Geometry Exercises 7.1
- Construction of Quadrilaterals
- Practical Geometry Exercises 7.2
Chapter 8 : Circle
- Circle of Mathematics
- Circle Exercises 8.1
- The arc of a circle
- Circle Exercises 8.2
- Quadrilateral inscribed in a circle (Inscribed Quadrilaterals)
- Circle Exercises 8.3
- Secant and Tangent of the circle
- Common tangent
- Circle Exercises 8.4
- Constructions related to circles
- Circle Exercises 8.5
Chapter 9 : Trigonometric Ratio
- Trigonometric Ratio
- Naming of sides of a right-angled triangle
- Trigonometric ratios of an acute angle
- Trigonometric Ratio Exercises 9.1
- Trigonometric ratios for the angles 30°, 45°, and 60°.
- Trigonometric Ratio Exercises 9.2
Chapter 10 : Distance and Elevation
Chapter 11 : Algebraic Ratio and Proportion
- Ratio and Proportion
- Transformation of ratio
- Algebraic Ratio and Proportion Exercises 11.1
- Continued Ratio
- Proportional Division
- Algebraic Ratio and Proportion Exercises11.2
Chapter 12 : Simple Simultaneous Equations in Two Variables
- Simple simultaneous equations
- Simple Simultaneous Equations in Two Variables Exercises 12.1
- Solution of simple simultaneous equations
- Simple Simultaneous Equations in Two Variables Exercises 12.2
- Solving by using Graphical Method
- Simple Simultaneous Equations in Two Variables Exercises 12.3
- Formation of simultaneous equations from real life problems and solution
- Simple Simultaneous Equations in Two Variables Exercises 12.4
Chapter 13 : Finite Series
- Finite Series
- Arithmetic Series
- Determination of the sum of first n terms of natural numbers
- Finite Series Exercises 13.1
- Formulas of series
- Geometric Series
- Finite Series Exercises 13.2
Chapter 14 : Ratio, Similarity and Symmetry
- Properties of Ratio and Proportion
- Ratio, Similarity and Symmetry Exercises 14.1
- Similarity of Mathematics
- Internal Division of a Line Segment in definite ratio
- Ratio, Similarity and Symmetry Exercises 14.2
- important geometrical concept of Symmetry
- Rotational symmetry
- Ratio, Similarity and Symmetry Exercises 14.3
Chapter 15 : Area Related Theorems and Constructions
Chapter 16 : Mensuration
- Area of Triangular region
- Mensuration Exercises 16.1
- Area of Quadrilateral Region
- Area of regular polygon
- Mensuration Exercises 16.2
- Measurement regarding circle
- Mensuration Exercises 16.3
- Rectangular solid
- Mensuration Exercises 16.4
Chapter 17 : Statistics
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