Secondary Class 8 Mathematics, 2023, NCTB, English
Secondary Class 8 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 8 Mathematics, 2023, NCTB, English
Secondary Class 8 Mathematics contents
Chapter One : Patterns
- Patterns of Mathematics
- Patterns of Natural Numbers
- Expression of a number as the sum of squares of two natural numbers
- Formation of Magic Square
- Playing with numbers
- Geometric pattern
- Patterns Exercise 1
Chapter Two : Profits
- Profit and Loss
- Profit of Mathematics
- Problems related to profit
- Profit Exercise 2.1
- Compound Profit
- Profit Exercise 2.2
Chapter Three : Measurement
- Concept of Measurement and Units
- Measurement in Metric System
- The units of measuring length
- Relation between British and Metric System
- Measurement of Weights
- Measurement of Volume of Liquids
- Measurement of Area
- Concept of volume
- Measurement Exercise 3
Chapter Four : Algebraic Formulae and Applications
- Algebraic Formulae
- Algebraic Formulae and Applications Exercise 4.1
- Formulae of cubes and corollaries
- Two more Formulae related to Cubes
- Algebraic Formulae and Applications Exercise 4.2
- Resolving into Factors
- Factors of the expression of the form x² + px + q
- Factors of the expression in the form of ax² + bx+c
- Algebraic Formulae and Applications Exercise 4.3
- H.C.F. and L.C.M. of Algebraic Expressions
- Algebraic Formulae and Applications Exercise 4.4
Chapter Five : Algebraic Fractions
- Algebraic Fractions
- Fractions in the form of common denominator
- Addition of Fractions
- Subtraction of fractions
- Algebraic Fractions Exercise 5.1
- Multiplication of fractions
- Division of fractions
- Algebraic Fractions Exercise 5.2
Chapter Six : Simple Simultaneous Equations
- Simple Simultaneous Equations
- Method of solution of simple simultaneous equations of two variables
- Simple Simultaneous Equations Exercise 6.1
- Formation and solution to simultaneous equations of real life problems
- Graphical solution of simple simultaneous equations
- Simple Simultaneous Equations Exercise 6.2
Chapter Seven : Set
- Concept of set
- Methods of expressing set
- Classification of Sets
- Venn-diagram
- Concept of Subset
- Set operations
- Set Exercise 7
Chapter Eight : Quadrilateral
- Concept of Quadrilateral
- Types of Quadrilateral
- Theorems related to Quadrilaterals
- Area of Quadrilaterals
- Concept of Solid
- Quadrilateral Exercise 8.1
- Construction of Quadrilaterals
- Quadrilateral Exercise 8.2
Chapter Nine : Pythagoras Theorem
- Right angled Triangle
- Pythagoras Theorem
- Converse of Pythagoras theorem
- Pythagoras Theorem Exercise 9
Chapter Ten : Circle
- Concept of Circle
- Chord and Arc of a circle
- Diameter and Circumference
- Theorems Related to Circle
- Circle Exercise 10.1
- Circle Exercise 10.2
- Ratio of Circumference and Diameter of a Circle (r)
- Area of a Circle
- Concept of Cylinder
- Circle Exercise 10.3
Chapter Eleven : Information and Data
- Information and Data
- Frequency Distribution Table
- Concept of Diagram
- Central Tendency
- Arithmetic Mean
- Concept of Median
- Concept of mode
- Information and Data Exercise 11