Activity
Cool Math

Coolmath: Graphing Parabolas Part 1

For Students 6th - 8th
Learn how to graph quadratics and parabolas.
Activity
Cool Math

Coolmath: Graphing by Completing the Square Intro

For Students 6th - 9th Standards
This algebra lesson introduces how to complete the square in a parabola.
Graphic
BBC

Bbc: Functions

For Students 9th - 10th Standards
This resource takes a look at graphs of functions, composite functions, inverse functions and how to use completing the square to solve quadratic functions. A number of examples and a practice test are offered.