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Edfinity Mathematics – Quadratics
Overview
Topics Covered
Lesson 1: Completing the Square
1.1: Setting the Scene – The Key Players of the Story
1.2: Equations that can be solved by the QUADRUS method: Levels 1-3
1.3: Equations that can be solved by the QUADRUS method: Levels 4-6
Lesson 2: The Quadratic Formula
2.1: Deriving the Quadratic Formula
2.2: Counting Solutions and the Discriminant
2.3: Lots of Practice
Lesson 3: Factoring
3.1: Mersenne Primes
3.2: Factoring and Breaking Symmetry
3.3: More Practice; The Difference of Two Squares
Lesson 4: The Factor Theorem, Roots, and DIfference Formulas
4.1: An Opening Puzzler
4.2: The Factor Theorem
4.3: Practicing the Factor Theorem; The Difference of Two Squares; The Difference (and Sum) of Two Cubes
4.4: Roots
4.5: Rationalising the Denominator and the Numerator
Lesson 5: Setting the Scene for Graphing Quadratics
5.1: Introduction to Graphing; A Graphing Puzzle
5.2: Another Graphing Challenge
5.3: Steepness
5.4: Practicing Graphing
Lesson 6: Using Symmetry for Graphing Quadratics
6.1: The Opening Puzzle; Picking things up from Last Time
6.2: The Full Power of Symmetry
6.3: Practice
6.4: More Practice! The Opening Puzzle Revisited
4.3: Practicing the Factor Theorem; The Difference of Two Squares; The Difference (and Sum) of Two Cubes
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