Quadratics Overview
This series of videos are designed to help you review your understanding of quadratics .
​
We recommend you are familiar with:
​
-
Basic Algebraic Notation
-
Indices
-
Expanding Brackets
-
Factorising by Taking out Common Factors
-
Solving Linear Equations
-
Plotting Coordinates
-
Sketching Linear Graphs
-
Algebraic Functions
​
Download the worksheet below and complete the exercises.
Quadratics Worksheet
Quadratic Formula Derivation
Quadratics Powerpoint
Video 1: Factorising Quadratic Expressions
How to factorise quadratic functions when there is no common factor. The method we use and some worked examples
Video 2: Factorising Incomplete Quadratics
Three different scenarios. Examples of factorising if it has a linear factor, cannot be factorised or is the difference of two squares.
Video 3: Solving Quadratics by Factorising
This is your Project description. Provide a brief summary to help visitors understand the context and background of your work. Click on "Edit Text" or double click on the text box to start.
Video 4: Solving Incomplete Quadratics by Factorising
How to factorise quadratic functions when there is no common factor. The method we use and some worked examples.
Video 5: Another Way of Solving Incomplete Quadratics
How to solve quadratics when missing the linear term. The method we teach with some worked examples.
Video 6: Solving Quadratics By Completing the Square
How to generalise the method from video 5 to solve quadratics by completing the square.
Video 7: Introduction to the Quadratic Formula
Where the quadratic formula comes from and it's derivation.
Video 8: Applying the Quadratic Formula
Worked examples of using the Quadratic Formula
Video 9: Introduction to Quadratic Functions
The general shape of a quadratic and how it's affected by a, b
and c
Video 10: Sketching Quadratics
How to find the x and y intercepts of a quadratic function
Video 11: Quadratic Inequalities
How to use the sketch of a quadratic function to solve quadratic inequalities