List of lessons for Class 9
ALGEBRA > POLYNOMIALS
Polynomial, Its Degree, And Types
Learn the definition of constant and zero polynomials. What are different types of polynomial based on terms & degree? Practice with examples & worksheets.
Table of contents
- Variable
- Constant
- Algebraic Expression
- Definition of polynomial
- Degree of polynomial
- What are the types?
- Constant Polynomial
- Zero Polynomial
Rupinder Kaur
Jul 13, 2026
ALGEBRA > EQUATIONS
Roots And The Discriminant Of A Quadratic Equation
What is the standard form & discriminant of a quadratic equation? How to find roots using factorization, completing the square & quadratic formula methods.
Table of contents
- Quadratic equation
- Standard form
- Roots
-
Methods to solve
- Factorization method
- Completing the square method
- Quadratic formula method
Rupinder Kaur
Jul 14, 2026
KNOWLEDGE > HISTORY
Important Days Of Mathematics Celebrated In The World
Get the important days of mathematics celebrated in the world. Learn the ways to arrange these events. Which are the competitions organized on math days?
Table of contents
- List of important maths days
- E-Day (Euler's Number)
- Fibonacci Day
- International Sudoku Day
- National Mathematics Day (India)
- National Numeracy Day (UK)
- Number Day (UK)
- Palindrome Day
- Pi Day
- Pythagorean Theorem Day
- Square Root Day
- Women in Mathematics Day
- World Maths Day
- Summary of maths days in a year
- Calendar of Math days
Desh Bandhu
Aug 18, 2026
THINGS TO REMEMBER > FORMULAS
Download And Print List Of Algebraic Identities
Download a list of important algebraic identities in Algebra. Print PDF sheets of helpful identities and ready to remember lists for exams.
Table of contents
- Important Algebraic Identities
Desh Bandhu
Aug 18, 2026
THINGS TO REMEMBER > FORMULAS
Download And Print List Of Surface Area And Volume Formulas
Download formulas of surface areas and volumes of 3-dimensional shapes of geometry. Print PDF sheets of helpful and ready to remember list for exams.
Table of contents
- Important surface area formulas
- Important total surface area formulae
- Important volume formulas
Rupinder Kaur
Aug 18, 2026
Area Perimeter
ALGEBRA > POLYNOMIALS
Plotting Of Zeros Of Linear, Quadratic And Cubic Polynomials
Understand the geometrical meaning of zeros of linear, quadratic, & cubic polynomials. Learn the definition and steps to sketch & plot zeros on the graph.
Table of contents
- What are zeros of a polynomial?
- Definition
- Geometrical meaning
- Plot the zeros of linear polynomial
- Plot the zeros of quadratic polynomial
- Plot the zeros of cubic polynomial
- Plot the zeros of biquadratic polynomial
Rupinder Kaur
Aug 18, 2026
Coordinate Geometry
ARITHMETIC > NUMBER SYSTEM
Types of Numbers Used in Math With Examples
Get the list of types of numbers in arithmetic with their definitions and simple examples to understand. Practice & solve questions using free worksheets.
Table of contents
- Natural number
- Whole number
- Integers
- Rational numbers
- Irrational numbers
- Real number
- Imaginary number
- Complex number
- More types of numbers
- Additive inverse of a number
Rupinder Kaur
Aug 18, 2026
Numbers Rounding off
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