quadratic


  • Complete the Square for Vertex Form

    Complete the Square for Vertex Form

    This post provides a handout that guides students through the various steps for completing the square to transform an equation into vertex form. Students are guided through each step in isolation. Overview Students are presented each step in a separate chunk of the lesson. Then the steps are chained together, with scaffolding that is faded.…


  • Factoring Quadratics – Loh Method

    Factoring Quadratics – Loh Method

    Dr. Po-Shen Loh shared a possible new method for factoring a quadratic. This post provides a layman’s attempt to share the steps that teachers may find intriguing and possibly useful, especially for complex roots. Dr. Loh’s Website Here is a link to a page on his site that provides his explanation. Factoring Background In the…


  • Introduction to Key Characteristics of Graphs Using a Rollercoaster

    Introduction to Key Characteristics of Graphs Using a Rollercoaster

    I introduce key characteristics with parabolas and use the analogy of a rollercoaster. Riding once (and never a again) the Superman rollercoaster at Six Flags New England got me thinking about this. At one point the rollercaster hits ground level (a zero) and then goes underground (negative y values). Here is a handout I use…


  • Unpacking Graphs Using a Rollercoaster

    Unpacking Graphs Using a Rollercoaster

    I introduce key characteristics with parabolas and use the analogy of a rollercoaster. Riding once (and never a again) the Superman rollercoaster at Six Flags New England got me thinking about this. At one point the roller coaster hits ground level (a zero) and then goes underground (negative y values). Handout Here is a handout…


  • Mailbag Jan 29 2018

    Mailbag Jan 29 2018

    A reader asked about an algebra 2 problem and shared (below) his effort to cut up the math into bite-sized pieces. I greatly appreciate his effort because he is trying to meet student needs. While this post is very “mathy” I want to make a couple of points to the readers. First, I wrote out…