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The composite score is calculated based on their weighted performance in Activities, Smart sheets, Assessments and Question of the Day and Discussion forum posts.

A student needs to have attempted at least one smart sheet or assessment over the past 7 days in order to qualify for the Wall of Fame.

5 points are awarded for every forum post like.

The Wall of Fame is updated every 10 minutes.

Math Buddy covers all the topics of class 9. Topics include real numbers, algebra, polynomials, linear equations, quadrilaterals, circles, geometry, volume, surface area concepts, statistics, data representation, geometrical construction and many more interactive activities and assessments for better understanding of the math concepts.

The skills are organised into topics, and you can move your mouse over any skill name to view. To start practicing, just click on any link.

The skills are organised into topics, and you can move your mouse over any skill name to view. To start practicing, just click on any link.

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Math Buddy Skills - Class 9

Introduction to real numbers

- 9.A.1 Review of numbers
- 9.A.2 Types of numbers
- 9.A.3 Insert rational numbers
- 9.A.4 Identify the number
- 9.A.5 Square root spiral
- 9.A.6 Square roots on the number line
- 9.A.7 Determination of irrational numbers
- 9.A.8 Battle ship game
- 9.A.9 Match the number to the number type
- 9.A.10 Sieve the numbers
- 9.A.11 Real Numbers - Combat zone

Polynomials

Algebraic Identities and Factorization

- 9.C.1 Factorization using Common Factors
- 9.C.2 Factorization with identities - Difference of two Squares
- 9.C.3 Expansion of Algebraic Identities
- 9.C.4 Algebraic Identities - Missing term
- 9.C.5 Application of Algebraic Identities
- 9.C.6 Factorization with Cubic Identities

Linear equations in two variables

- 9.D.1 Graph the equation
- 9.D.2 Types of slopes
- 9.D.3 Special types of equations
- 9.D.4 Graph the slope
- 9.D.5 Point slope form
- 9.D.6 Slopes of parallel and perpendicular lines
- 9.D.7 Linear equations - Combat zone

Congruence in Triangles

- 9.E.1 SSS Congruence - Skill practice
- 9.E.2 Make the triangles congruent
- 9.E.3 Pick the corresponding parts
- 9.E.4 Fill the missing value
- 9.E.5 Pick the congruence property
- 9.E.6 Congruence - combat zone

Properties of Quadrilaterals

- 9.F.1 Sum of Angles In a Quadrilateral
- 9.F.2 Sum of Angles In a Quadrilateral - Practice
- 9.F.3 Properties of a Parallelogram
- 9.F.4 Properties of a Parallelogram - Practice
- 9.F.5 Properties of a Rhombus
- 9.F.6 Properties of a Rhombus - Practice
- 9.F.7 Intercept Theorem
- 9.F.8 Midpoint Theorem

Properties of Circles - I

- 9.G.1 Perpendicular from the Center to a Chord
- 9.G.2 Equal chords of a circle
- 9.G.3 Angle subtended by an arc at the center of a circle
- 9.G.4 Angle at the center - Skill Practice

Properties of Circles - II

- 9.H.1 Angles in the same segment of a circle
- 9.H.2 Angles in a semi-circle
- 9.H.3 Angles in the same segment - Skill Practice
- 9.H.4 Cyclic Quadrilaterals and their properties
- 9.H.5 Properties of Tangents of a Circle

Transformations

- 9.I.1 Rotation of polygons
- 9.I.2 Combination of transformations
- 9.I.3 Transformation sequence
- 9.I.4 Find the co-ordinates
- 9.I.5 Transformations - Combat zone

Coordinate Geometry

- 9.J.1 Graph the point
- 9.J.2 Abscissa and ordinate
- 9.J.3 Which Quadrant?
- 9.J.4 Slopes of lines
- 9.J.5 Escape!
- 9.J.6 Coordinate Geometry - Combat zone

Perimeter and Area of Plane Shapes

- 9.K.1 Area of a Triangle
- 9.K.2 Herons Formula for Area of a Triangle
- 9.K.3 Area of a Triangle - Practice
- 9.K.4 Area of a Quadrilateral
- 9.K.5 Area of a Parallelogram
- 9.K.6 Area of a Rhombus
- 9.K.7 Area of a Trapezium

Volume and Surface Area Concepts

- 9.L.1 Surface Area of Cubes and Cuboids
- 9.L.2 Surface Area of a Cylinder
- 9.L.3 Surface Area of a Cone
- 9.L.4 Volume of a Prism
- 9.L.5 Volume of a Cylinder
- 9.L.6 Volume of a Cone

Volume and Surface Area - Practice

- 9.M.1 Volume and Surface Areas of Cuboids - Practice
- 9.M.2 Surface Area and Volume of Cylinders
- 9.M.3 Comparison of Volumes of Cylinders
- 9.M.4 Volume and Surface Area - Practice
- 9.M.5 Comparison of Volumes of Cones

Tabular representation of data

- 9.N.1 Presentation of data
- 9.N.2 Frequency distribution
- 9.N.3 Exclusive and Inclusive method
- 9.N.4 Classes, class intervals, class mark and class size
- 9.N.5 Construction of frequency distribution
- 9.N.6 Grouped frequency distribution - Skill practice
- 9.N.7 Cumulative frequency distribution
- 9.N.8 Tabular data - Skill practice
- 9.N.9 Tabular data - Combat zone

Graphical representation of data

- 9.O.1 Bar graphs - Introduction
- 9.O.2 Numbers or pictures?
- 9.O.3 Interpret Bar graphs
- 9.O.4 Histograms
- 9.O.5 Multiple bar graphs
- 9.O.6 Histogram - Inclusive to exclusive
- 9.O.7 Histogram - Unequal class intervals
- 9.O.8 Frequency polygon/Line graph
- 9.O.9 Create line graphs
- 9.O.10 Interpret histograms
- 9.O.11 Interpret line graphs
- 9.O.12 Graphical representation of data - Combat zone

Central Tendency

- 9.P.1 Central tendency - Mean values
- 9.P.2 Central tendency - Median
- 9.P.3 Central tendency - Mode
- 9.P.4 Calculate mean for ungrouped data
- 9.P.5 Calculate median for ungrouped data
- 9.P.6 Calculate Measures
- 9.P.7 Interpret measures from graph
- 9.P.8 Missing data
- 9.P.9 Measures - Combat zone

Geometrical constructions

- 9.Q.1 Bisector of a given angle
- 9.Q.2 Perpendicular bisector of a given line
- 9.Q.3 Construct an angle of 60 degrees
- 9.Q.4 Construct a triangle when three sides are given
- 9.Q.5 Construct a triangle given its base, base angle and sum of other two sides
- 9.Q.6 Construct a triangle given its base, a base angle and the difference of the other two sides - Part I
- 9.Q.7 Construct a triangle given its base, a base angle and the difference of the other two sides - Part II
- 9.Q.8 Construct a triangle, given its perimeter and its two base angles