Mathematics

Junior Secondary School (JSS1-JSS3)
Summary

Topics for this Subject
461 Sub-topics 00:00:00 Hours
  • Whole Numbers I 00:00:00
  • Whole Numbers II 00:00:00
  • Millions 00:00:00
  • Billions 00:00:00
  • Trillions 00:00:00
  • Quantitative Reasoning 00:00:00
  • Lesson Note on Whole Numbers
  • Quiz on Whole Numbers 00:00:00
  • LCM I 00:00:00
  • LCM II 00:00:00
  • Lesson Note on LCM
  • Quiz on LCM 00:00:00
  • HCF I 00:00:00
  • HCF II 00:00:00
  • Common Factor 00:00:00
  • Lesson Note on HCF
  • Quiz on HCF 00:00:00
  • Counting in Base Two I 00:00:00
  • Counting in Base Two II 00:00:00
  • Counting in Groups of Twos 00:00:00
  • Lesson Note on Counting in Base 2
  • Quiz on Counting in Base Two 00:00:00
  • Conversion from Base 2 to Base 10 00:00:00
  • Converting from Base 10 to Base 2 00:00:00
  • Lesson Note on Conversion of Base 10
  • Quiz in Conversion Of Base 10 00:00:00
  • Meaning of Fraction 00:00:00
  • Types of Fraction 00:00:00
  • Application of Fractions 00:00:00
  • Equivalent Fractions 00:00:00
  • Ordering of Fractions I 00:00:00
  • Ordering of Fractions II 00:00:00
  • Identifying Equivalent Fractions I 00:00:00
  • Identifying Equivalent Fractions II 00:00:00
  • Conversion of Fraction to Decimal I 00:00:00
  • Conversion of Fraction to Decimal II 00:00:00
  • Conversion of Percentage to Fraction I 00:00:00
  • Conversion of Percentage to Fraction II 00:00:00
  • Conversion of Fractions to Percentages 00:00:00
  • Conversion of Improper Fractions to Mixed Fractions and Vice Versa 00:00:00
  • Quantitative Aptitude Reasoning 00:00:00
  • Lesson Note on Fraction 1
  • Quiz on Fraction 00:00:00
  • Introduction to Addition and Subtraction of Whole Numbers 00:00:00
  • Addition and Subtraction of Whole Numbers I 00:00:00
  • Addition and Subtraction of Whole Numbers II 00:00:00
  • Addition and Subtraction of Whole Numbers III 00:00:00
  • Number Line 00:00:00
  • Addition and Subtraction of Integers Using Number Line I 00:00:00
  • Addition and Subtraction of Integers Using Number Line II 00:00:00
  • Everyday Application of Positive and Negative Integers I 00:00:00
  • Everyday Application of Positive and Negative Integers II 00:00:00
  • Lesson Note on Addition and Subtraction
  • Quiz on Addition and Subtraction 00:00:00
  • Addition of Fractions I 00:00:00
  • Addition of Fractions II 00:00:00
  • Addition of Fractions III 00:00:00
  • Subtraction of Fractions 00:00:00
  • Word Problems on Addition and Subtraction of Fractions I 00:00:00
  • Word Problems on Addition and Subtraction of Fractions II 00:00:00
  • Complex Questions on Addition and Subtraction of Fractions 00:00:00
  • Lesson Note on Addition and Subtraction of Fractions
  • Quiz on Addition and Subtraction of Fractions 00:00:00
  • Multiplication of Fractions 00:00:00
  • Division of Fractions I 00:00:00
  • Division of Fractions II 00:00:00
  • Division of Fractions III 00:00:00
  • Word Problems Involving Multiplication and Division of Fractions I 00:00:00
  • Word Problems Involving Multiplication and Division of Fractions II 00:00:00
  • Lesson Note on Multiplication and Division of Fractions
  • Quiz on Multiplication and Division of Fractions 00:00:00
  • Estimation of Length or Distance 00:00:00
  • Estimation of Area 00:00:00
  • Estimation of Capacity 00:00:00
  • Estimation of Time 00:00:00
  • Quantitative Reasoning Involving Estimation 00:00:00
  • Lesson Note on Estimation
  • Quiz on Estimation 00:00:00
  • Approximation 00:00:00
  • Significant Figures I 00:00:00
  • Significant Figures II 00:00:00
  • Nearest - Whole-Centimetre-Kilogram etc 00:00:00
  • Rounding Off Numbers to the Nearest 10, 100 and 1000 00:00:00
  • Rounding Off of Decimal Numbers I 00:00:00
  • Rounding Off of Decimal Numbers II 00:00:00
  • Approximating Results of Multiplication and Division 00:00:00
  • Application of Approximation in Everyday Life 00:00:00
  • Quantitative Involving Approximation 00:00:00
  • Lesson Note on Approximation
  • Quiz on Approximation 00:00:00
  • Addition of Two or Three 3-digits Binary Numbers 00:00:00
  • Lesson Note on Addition of Numbers in Base 2 Numerals
  • Quiz on Addition of Numbers in Base 2 Numerals 00:00:00
  • Subtraction of Numbers in Base 2 Numerals I 00:00:00
  • Subtraction of Numbers in Base 2 Numerals II 00:00:00
  • Lesson Note on Subtraction of Numbers in Base 2 Numerals
  • Quiz on Subtraction of Numbers in Base 2 Numerals 00:00:00
  • Multiplication of Two 2-digits Binary Numbers I 00:00:00
  • Multiplication of Two 2-digits Binary Numbers II 00:00:00
  • Lesson Note on Multiplication of Numbers in Base 2
  • Quiz on Multiplication of Numbers in Base 2 00:00:00
  • Introduction to Use of Symbols 00:00:00
  • Word Problem I 00:00:00
  • Word Problem II 00:00:00
  • Open Sentences I 00:00:00
  • Open Sentences II 00:00:00
  • Use of Letters to Represent Symbols or Shapes in Open Sentences 00:00:00
  • Solving Open Sentences with Two Arithmetic Operations I 00:00:00
  • Solving Open Sentences with Two Arithmetic Operations II 00:00:00
  • Word Problems Involving Use of Symbols 00:00:00
  • Exam on Open Sentence 00:00:00
  • Quantitative Aptitude 00:00:00
  • Lesson Note on Use of Symbols
  • Quiz on Uses of Symbols 00:00:00
  • Introduction to Simplification of Algebraic Expressions 00:00:00
  • Identifying the Combination of an Algebraic Expression 00:00:00
  • Like and Unlike Terms in Algebraic Expressions I 00:00:00
  • Like and Unlike Terms in Algebraic Expressions II 00:00:00
  • Like and Unlike Terms in Algebraic Expressions III 00:00:00
  • Order of Operation in Algebraic Expression I 00:00:00
  • Order of Operation in Algebraic Expression II 00:00:00
  • Use of Brackets I 00:00:00
  • Use of Brackets II 00:00:00
  • Positive and Negative Sign Before Bracket 00:00:00
  • Identification of Coefficients of Terms of Algebraic Expressions I 00:00:00
  • Identification of Coefficients of Terms of Algebraic Expressions II 00:00:00
  • Basic Arithmetic Operations Applied to Algebraic Expressions of Similar Terms 00:00:00
  • Collection and Simplification of Like and Unlike Terms in Algebraic Expressions 00:00:00
  • Quantitative Reasoning 00:00:00
  • Lesson Note on Simplification of Algebraic Expressions
  • Quiz on Simplification of Algebraic Expressions 00:00:00
  • Introduction to Simple Equations 00:00:00
  • Translation of Equations to Word Problems I 00:00:00
  • Translation of Equations to Word Problems II 00:00:00
  • Solution of Simple Equations I 00:00:00
  • Solution of Simple Equations II 00:00:00
  • Solution of Simple Equations III 00:00:00
  • Lesson Note on Simple Equations
  • Quiz on Simple Equations 00:00:00
  • Introduction to Plane Shapes 00:00:00
  • Examples of Plane Shapes 00:00:00
  • Properties of Square 00:00:00
  • Properties of Rectangle 00:00:00
  • Similarities between Square and Rectangle 00:00:00
  • Differences between Square and Rectangle 00:00:00
  • Properties of Triangle 00:00:00
  • Similarities of the Types of Triangles I 00:00:00
  • Similarities of the Types of Triangles II 00:00:00
  • Properties of Trapezium 00:00:00
  • Properties of Rhombus 00:00:00
  • Properties of Parallelogram 00:00:00
  • Similarities between Parallelogram and Rhombus 00:00:00
  • Differences between Parallelogram and Rhombus 00:00:00
  • Properties of a Circle 00:00:00
  • Introduction to Perimeter of Plane Shapes 00:00:00
  • Perimeter of a Square 00:00:00
  • Perimeter of Rectangle 00:00:00
  • Perimeter of Triangle I 00:00:00
  • Perimeter of Triangle II 00:00:00
  • Perimeter of Rhombus 00:00:00
  • Perimeter of Parallelogram 00:00:00
  • Circumference of a Circle I 00:00:00
  • Circumference of a Circle II 00:00:00
  • Area of Square I 00:00:00
  • Area of Square II 00:00:00
  • Area of Rectangle I 00:00:00
  • Area of Rectangle II 00:00:00
  • Area of Triangle I 00:00:00
  • Area of Triangle II 00:00:00
  • Area of Triangle III 00:00:00
  • Area of Trapezium 00:00:00
  • Area of Rhombus 00:00:00
  • Area of a Parallelogram I 00:00:00
  • Area of a Parallelogram II 00:00:00
  • Area of a Circle 00:00:00
  • Lesson Note on Plane Shapes
  • Quiz on Plane Shapes 00:00:00
  • Three Dimensional Figures 00:00:00
  • Basic Properties of Cubes and Cuboids 00:00:00
  • Basic Properties of Pyramids and Cones 00:00:00
  • Basic Properties of Cylinders and Spheres 00:00:00
  • Volumes of Cubes and Cuboids I 00:00:00
  • Volumes of Cubes and Cuboids II 00:00:00
  • Volumes of Cubes and Cuboids III 00:00:00
  • Lesson Note on Three Dimensional Figures
  • Quiz on Three Dimensional Figures 00:00:00
  • Angle 45 degree 00:00:00
  • Construction of Parallel and Perpendicular Lines 00:00:00
  • Bisection of a Given Line Segment 00:00:00
  • Construction of Angles 90 Degrees and 60 Degrees 00:00:00
  • Lesson Note on Construction
  • Quiz on Construction 00:00:00
  • Introduction to Angles 00:00:00
  • Measurement of Angles I 00:00:00
  • Measurement of Angles II 00:00:00
  • Adjacent Angles 00:00:00
  • Opposite Angles 00:00:00
  • Identification and Properties of Alternate Angles 00:00:00
  • Identification and Properties of Corresponding Angles 00:00:00
  • Identification and Properties of Angles on a Straight Line 00:00:00
  • Identification and Properties of Angles at a Point 00:00:00
  • Lesson Note on Angles
  • Quiz on Angles 00:00:00
  • Purposes of Statistics 00:00:00
  • Need for Collecting Data for Planning Purposes 00:00:00
  • Collection of Data 00:00:00
  • Lesson Note on Need for Statistics
  • Quiz on Need for Statistics 00:00:00
  • Data Collection Exercise 00:00:00
  • Lesson Note on Data Collection
  • Quiz on Data Collection 00:00:00
  • Median 00:00:00
  • Lesson Note on Data Representation
  • Quiz on Data Presentation 00:00:00
  • Whole Numbers in Standard Form I 00:00:00
  • Whole Numbers in Standard Form II 00:00:00
  • Decimal Numbers in Standard Form 00:00:00
  • Prime Factors 00:00:00
  • Prime Factorization 00:00:00
  • LCM I 00:00:00
  • LCM II 00:00:00
  • HCF 00:00:00
  • Squares and Square Roots I 00:00:00
  • Squares and Square Roots II 00:00:00
  • Quantitative Reasoning 00:00:00
  • Lesson Note on Whole Numbers 2
  • Quiz on Whole Numbers 00:00:00
  • Fractions as Ratios 00:00:00
  • Fractions as Decimals 00:00:00
  • Expressing Fractions as Decimals 00:00:00
  • Word Problems on Fraction, Ratios and Percentages. 00:00:00
  • Quantitative Reasoning on Fractions, Ratios and Percentages 00:00:00
  • Lesson Note on Fractions
  • Quiz on Fractions 00:00:00
  • Household Arithmetic I 00:00:00
  • Household Arithmetic II 00:00:00
  • Household Arithmetic III 00:00:00
  • Commercial Arithmetic I 00:00:00
  • Commercial Arithmetic II; Simple Interest I 00:00:00
  • Commercial Arithmetic II: Simple Interest II 00:00:00
  • Commercial Arithmetic II: Simple Interest III 00:00:00
  • Commercial Arithmetic II: Simple Interest IV 00:00:00
  • Commercial Arithmetic III 00:00:00
  • Commercial Arithmetic IV: Profit and Loss I 00:00:00
  • Commercial Arithmetic IV: Profit and Loss II 00:00:00
  • Commercial Arithmetic IV: Profit and Loss III 00:00:00
  • Commercial Arithmetic V 00:00:00
  • Lesson Note on Transactions in the Homes and Offices
  • Quiz on Transactions in the Homes and Offices 00:00:00
  • Decimal Place 00:00:00
  • Approximation of Decimal Place 00:00:00
  • Significant Figures 00:00:00
  • Approximation of Significant Figures 00:00:00
  • Quantitative Reasoning 00:00:00
  • Lesson Note on Approximation
  • Quiz on Approximation 00:00:00
  • Square and Square Root Tables 00:00:00
  • Charts, Records and Schedules 00:00:00
  • Multiplication and Division of Directed Numbers 00:00:00
  • Lesson Note on Multiplication and Division of Directed Numbers
  • Quiz on Multiplication and Division of Directed Numbers 00:00:00
  • Expansion of Algebraic Expressions I 00:00:00
  • Expansion of Algebraic Expressions II 00:00:00
  • Factorization of Simple Algebraic Expressions 00:00:00
  • Algebraic Expressions of Fractions with Monomial Denominators 00:00:00
  • Expanding Quadratic Equation 00:00:00
  • Factorization of Quadratic Expressions I 00:00:00
  • Factorization of Quadratic Expressions II 00:00:00
  • Factorization of Quadratic Expressions III 00:00:00
  • Word Problems Leading to Simple Algebraic Fractions 00:00:00
  • Quantitative Reasoning 00:00:00
  • Lesson Note on Algebraic Expressions
  • Quiz on Algebraic Expressions 00:00:00
  • Simple Equations 00:00:00
  • Problems on Simple Equations I 00:00:00
  • Problems on Simple Equations II 00:00:00
  • Problems on Simple Equations III 00:00:00
  • Lesson Note on Simple Equations
  • Quiz on Simple Equations 00:00:00
  • Introduction to Linear Inequalities 00:00:00
  • Linear Inequality in One Variable I 00:00:00
  • Linear Inequality in One Variable II 00:00:00
  • Linear Inequality in One Variable III 00:00:00
  • Graphical Representations of Solutions of Linear Inequalities in One Variable 00:00:00
  • Word Problems 00:00:00
  • Lesson Note on Linear Inequalities
  • Quiz on Linear Inequalities 00:00:00
  • Introduction to Graph 00:00:00
  • Plotting Points on the Cartesian Plane I 00:00:00
  • Plotting Points on the Cartesian Plane II 00:00:00
  • Graph of Linear Equation in Two Variables 00:00:00
  • Linear Graphs From Real Life Solutions 00:00:00
  • Quantitative Reasoning 00:00:00
  • Lesson Note on Graphs
  • Quiz on Graphs 00:00:00
  • Plane Figures and Shapes 00:00:00
  • Properties of Kite 00:00:00
  • Properties of Rhombus 00:00:00
  • Properties of Parallelogram 00:00:00
  • Lesson Note on Plane Figures and Shapes
  • Quiz on Plane Figures and Shapes 00:00:00
  • Sum of Angles of a Polygon I 00:00:00
  • Sum of Angles of a Polygon II 00:00:00
  • Angles of Elevation and Depression I 00:00:00
  • Angles of Elevation and Depression II 00:00:00
  • Angles of Elevation and Depression III 00:00:00
  • Lesson Note on Angles
  • Quiz on Angles 00:00:00
  • Bearing I 00:00:00
  • Bearing II 00:00:00
  • Bearing III 00:00:00
  • Bearing IV 00:00:00
  • Lesson Note on Bearing
  • Quiz on Bearing 00:00:00
  • Triangles 00:00:00
  • Plane Shape 00:00:00
  • Angle 30 00:00:00
  • Copying a given angle 00:00:00
  • Angle 90 degree 00:00:00
  • Angle 60 degree 00:00:00
  • Perpendicular Lines 00:00:00
  • Constructing Angles 00:00:00
  • Bisecting Angles 00:00:00
  • Parallel Line 00:00:00
  • Quiz on Constructions 00:00:00
  • Ordered Presentation of Data 00:00:00
  • Frequency Table I 00:00:00
  • Frequency Table II 00:00:00
  • Pie Charts 00:00:00
  • Charts, Records and Schedules I 00:00:00
  • Charts, Records and Schedules II 00:00:00
  • Charts, Records and Schedules III 00:00:00
  • Lesson Note on Data Presentation
  • Quiz on Data Presentation 00:00:00
  • Definition of Terms in Probability 00:00:00
  • Occurrence of Chance Events in Everyday Life 00:00:00
  • Probability of Chance Events I 00:00:00
  • Probability of Chance Events II 00:00:00
  • Probability of Chance Events III 00:00:00
  • Probability of Chance Events IV 00:00:00
  • Lesson Note on Probability
  • Quiz on Probability 00:00:00
  • Binary System: Addition 00:00:00
  • Binary System: Subtraction 00:00:00
  • Binary System: Multiplication 00:00:00
  • Binary System: Division 00:00:00
  • Using Computer to do Simple Mathematical Calculations I 00:00:00
  • Using Computer to do Simple Mathematical Calculations II 00:00:00
  • Using Computer to do Simple Mathematical Calculations III 00:00:00
  • Using Computer to do Simple Mathematical Calculations IV 00:00:00
  • Translation of Word Problems into Numerical Expressions Ex. 1 00:00:00
  • Translation of Word Problems into Numerical Expressions Ex. 2 00:00:00
  • Expressions Involving Brackets and Fractions I 00:00:00
  • Expressions Involving Brackets and Fractions II 00:00:00
  • Direct and Inverse Proportions I 00:00:00
  • Direct and Inverse Proportions II 00:00:00
  • Application of Direct and Inverse Proportions; Direct Ex. 1 00:00:00
  • Application of Direct and Inverse Proportions; Direct Ex. 1 Contd 00:00:00
  • Application of Direct and Inverse Proportions; Direct Ex. 2 00:00:00
  • Application of Direct and Inverse Proportions; Inverse Ex. 1 A 00:00:00
  • Application of Direct and Inverse Proportions; Inverse Ex. 1 B 00:00:00
  • Application of Direct and Inverse Proportions; Inverse Ex. 2 A 00:00:00
  • Application of Direct and Inverse Proportions; Inverse Ex. 2 B 00:00:00
  • Compound Interest 00:00:00
  • Lesson Note on Whole Numbers 3
  • Quiz on Whole Numbers 00:00:00
  • Rational and Non-Rational Numbers I 00:00:00
  • Rational and Non-Rational Numbers II 00:00:00
  • Rational and Non-Rational Numbers II Contd. 00:00:00
  • Lesson Note on Rational and Non-Rational Numbers
  • Quiz on Rational and Non-Rational Numbers 00:00:00
  • Addition of Numbers in Base 2 Numbers I 00:00:00
  • Addition of Numbers in Base 2 Numbers II 00:00:00
  • Quiz on Addition Of Numbers In Base 2 Numbers 00:00:00
  • Subtraction of Numbers in Base 2 Numerals 00:00:00
  • Quiz on Subtraction Of Numbers In Base 2 Numerals 00:00:00
  • Multiplication of Two 2-Digits Binary Numbers 00:00:00
  • Quiz on Multiplication Of Numbers In Base 2 Numbers 00:00:00
  • Divisions of Numbers in Base 2 Numerals I 00:00:00
  • Divisions of Numbers in Base 2 Numerals II 00:00:00
  • Quiz on Division Of Numbers In Base 2 Numerals 00:00:00
  • Factorization: Introduction 00:00:00
  • Factorization of Expressions of the Form; ax + ay Ex. 1 00:00:00
  • Factorization of Expressions of the Form; ax + ay Ex. 2 00:00:00
  • Factorization of Expressions of the Form; 3m + pq + 3p + mq Ex. 1 00:00:00
  • Factorization of Expressions of the Form; 3m + pq + 3p + mq Ex. 2 00:00:00
  • Factorization of Expressions of the Form: a^2 - b^2 00:00:00
  • Factorization of Expressions of the Form: a^2 - 2ab + b^2 00:00:00
  • Word Problem Involving Factorization Ex. 1 00:00:00
  • Word Problem Involving Factorization Ex. 2 00:00:00
  • Lesson Note on Factorization
  • Quiz on Factorization 00:00:00
  • Simple Equation Involving Fractions Example I 00:00:00
  • Simple Equation Involving Fractions Example II 00:00:00
  • Simple Equation Involving Fractions Example III 00:00:00
  • Word Problems Leading to Simple Equations Involving Fractions Ex. 1 00:00:00
  • Word Problems Leading to Simple Equations Involving Fractions II 00:00:00
  • Word Problems Leading to Simple Equations Involving Fractions Ex. 2 00:00:00
  • Word Problems Leading to Simple Equations Involving Fractions Ex. 1 Contd. 00:00:00
  • Word Problems Leading to Simple Equations Involving Fractions: Contd. of Solution Ex. 1 00:00:00
  • Lesson Note on Simple Equations Involving Fractions
  • Quiz on Simple Equations Involving Fractions 00:00:00
  • Simultaneous Linear Equation: Introduction 00:00:00
  • Compilation of Table Values Equation I 00:00:00
  • Compilation of Table Values Equation II 00:00:00
  • Graphical Solution of Simultaneous Linear Equations in Two Variables I 00:00:00
  • Graphical Solution of Simultaneous Linear Equations in Two Variables II 00:00:00
  • Solution of Simultaneous Linear Equations Using Elimination Method 00:00:00
  • Solution of Simultaneous Linear Equations Using Substitution Method 00:00:00
  • Quiz on Simultaneous Linear Equations 00:00:00
  • Similar Shapes: Introduction 00:00:00
  • Enlargements and Scale Factor: Scale Factor 00:00:00
  • Enlargements and Scale Factor: Example 00:00:00
  • Lengths, Areas and Volumes of Similar Figures: Volume 00:00:00
  • Volume of Similar Figure Contd. 00:00:00
  • Lesson Note on Similar Shapes
  • Quiz on Similar Shapes 00:00:00
  • Introduction to Trigonometry I 00:00:00
  • Introduction to Trigonometry II 00:00:00
  • The Sine, Cosine and Tangent of an Acute Angle 00:00:00
  • The Sine, Cosine and Tangent of an Acute Angle (The Trick) 00:00:00
  • Applications of Trigonometric Ratio I 00:00:00
  • Applications of Trigonometric Ratio II 00:00:00
  • Lesson Note on Trigonometry
  • Quiz on Trigonometry 00:00:00
  • Area of Triangle: Introduction 00:00:00
  • Area of Triangle: Example 1 00:00:00
  • Area of Triangle: Example 2 00:00:00
  • Area of Parallelogram: Example 1 00:00:00
  • Area of Parallelogram: Example 2 00:00:00
  • Area of Trapezium: Example 1 00:00:00
  • Area of Trapezium: Example 2 00:00:00
  • Area of Circle: Example 1 00:00:00
  • Area of Circle: Example 2 00:00:00
  • Word Problems Involving Areas: Example 1 00:00:00
  • Word Problems Involving Areas: Example 2 00:00:00
  • Lesson Note on Area of Plane Figures
  • Quiz on Area of Plane Figures 00:00:00
  • Construction of Angle 45 Degrees 00:00:00
  • Construction of Angle 30 Degrees 00:00:00
  • Copying given Angles. 00:00:00
  • Construction of Simple Plane Shapes 00:00:00
  • Parallel Line 00:00:00
  • Triangles 2 00:00:00
  • Triangle 2 00:00:00
  • Lesson Note on Construction 3
  • Quiz on Construction 00:00:00
  • Median: Introduction 00:00:00
  • Median: Example 1 00:00:00
  • Median: Example 2 00:00:00
  • Mode 00:00:00
  • Mean: Introduction 00:00:00
  • Mean: Examples 00:00:00
  • Range 00:00:00
  • Application of Measures of Central Tendency to Analyze any Given Information I 00:00:00
  • Application of Measures of Central Tendency to Analyze any Given Information II 00:00:00
  • Lesson Note on Measure of Central Tendency
  • Quiz on Measure Of Central Tendency 00:00:00
  • Pie Charts 00:00:00
  • Quiz on Data Presentation 00:00:00
  • Lesson Note on Data Presentation
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