NCERT Math Class 9 Encompassing some identities
NCERT Math Class 9
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1: Number Systems
Intro to rational & irrational numbers
Video - 00:00:00 mins
Classifying numbers
Video - 00:00:00 mins
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Quiz
Converting a fraction to a repeating decimal
Video - 00:00:00 mins
Converting repeating decimals to fractions (part 1 of 2)
Video - 00:00:00 mins
Converting repeating decimals to fractions (part 2 of 2)
Video - 00:00:00 mins
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Quiz
Sums and products of irrational numbers
Video - 00:00:00 mins
Worked example: rational vs. irrational expressions
Video - 00:00:00 mins
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Quiz
Intro to rational Exponents
Video - 00:00:00 mins
Rewriting roots as rational exponents
Video - 00:00:00 mins
Evaluating fractional exponents
Video - 00:00:00 mins
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Quiz
Polynomials
Polynomials intro
Video - 00:00:00 mins
The parts of polynomial expressions
Video - 00:00:00 mins
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Quiz
Zeros of polynomials introduction
Video - 00:00:00 mins
Zero product property
Video - 00:00:00 mins
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Quiz
Factor theorem - Application of remainder theorem
Video - 00:00:00 mins
Strategy in factoring quadratics (part 1 of 2)
Video - 00:00:00 mins
Strategy in factoring quadratics (part 2 of 2)
Video - 00:00:00 mins
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Quiz
Polynomial identities introduction
Video - 00:00:00 mins
Factoring difference of squares: two variables (example 2)
Video - 00:00:00 mins
Factoring quadratics as (x+a)(x+b)
Video - 00:00:00 mins
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Quiz
Encompassing some identities
Video - 00:00:00 mins
Problems on cubic and trinomial identities
Video - 00:00:00 mins
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Quiz
Coordinate geometry
Introduction to the coordinate plane
Video - 00:00:00 mins
Points and quadrants example
Video - 00:00:00 mins
Finding the point not graphed
Video - 00:00:00 mins
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Quiz
Linear equations in two variables
Two-variable linear equations intro
Video - 00:00:00 mins
Intro to linear equation standard form
Video - 00:00:00 mins
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Quiz
Worked example: solutions to 2-variable equations
Video - 00:00:00 mins
Completing solutions to 2-variable equations
Video - 00:00:00 mins
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Quiz
Introduction to Euclid’s geometry
Euclid as the father of geometry
Video - 00:00:00 mins
Lines, line segments, & rays
Video - 00:00:00 mins
Euclidean postulates 1 and 2
Video - 00:00:00 mins
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Quiz
Lines and Angles
Straight and Right angles
Video - 00:00:00 mins
Acute, Obtuse and Reflex angles
Video - 00:00:00 mins
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Quiz
Complementary & supplementary angles
Video - 00:00:00 mins
Vertical angles
Video - 00:00:00 mins
Vertical angles are congruent proof
Video - 00:00:00 mins
Adjacent angles, linear pair of angles
Video - 00:00:00 mins
Transversal and 3 parallel lines
Video - 00:00:00 mins
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Quiz
Triangles
Corresponding parts of congruent triangles are congruent
Video - 00:00:00 mins
Triangle congruence postulates/criteria
Video - 00:00:00 mins
Why SSA isn't a congruence postulate/criterion
Video - 00:00:00 mins
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Quiz
Proving triangle congruence
Video - 00:00:00 mins
What is RHS congruency and Why RHS works
Video - 00:00:00 mins
Proofs concerning isosceles triangles
Video - 00:00:00 mins
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Quiz
Quadrilaterals
Proof: Opposite sides of a parallelogram
Video - 00:00:00 mins
Proof: Opposite angles of a parallelogram
Video - 00:00:00 mins
Proof: Diagonals of a parallelogram
Video - 00:00:00 mins
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Quiz
Midpoint theorem
Video - 00:00:00 mins
Converse of midpoint theorem
Video - 00:00:00 mins
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Quiz
Circles
Proof: When two chords subtend equal angles at the centre, the chords are equal
Video - 00:00:00 mins
Proof: Equal chords subtend equal angles
Video - 00:00:00 mins
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Quiz
Proof: radius is perpendicular to a chord it bisects
Video - 00:00:00 mins
Proof: perpendicular radius bisects chord
Video - 00:00:00 mins
Proof: Equal chords are equidistant from the center
Video - 00:00:00 mins
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Quiz
Inscribed angles
Video - 00:00:00 mins
Inscribed angle theorem proof
Video - 00:00:00 mins
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Quiz
Inscribed quadrilaterals proof
Video - 00:00:00 mins
Solving inscribed quadrilaterals
Video - 00:00:00 mins
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Quiz
Heron’s Formula
Heron's formula
Video - 00:00:00 mins
Surface area and volumes
Surface area of a cone: Computation
Video - 00:00:00 mins
Surface area of sphere: computation and sense of formula
Video - 00:00:00 mins
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Quiz
Volume of a cone
Video - 00:00:00 mins
Computing Volume of a cone
Video - 00:00:00 mins
Volume of a sphere
Video - 00:00:00 mins
Solving for volume of a Sphere
Video - 00:00:00 mins
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Quiz
Statistics
Creating a bar graph
Video - 00:00:00 mins
Why chose scale? Drawing Bar graph
Video - 00:00:00 mins
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Quiz
Interpreting a histogram
Video - 00:00:00 mins
Creating a histogram
Video - 00:00:00 mins
Drawing a frequency polygon
Video - 00:00:00 mins
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Quiz
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