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Quadratic Factoring

       iOS iPhone

Quadratic Factoring is a powerful learning aid that combines interactive Coaching Calculators and a Guide to help students master factoring of quadratic trinomials and solving of quadratic equations using the Box or Grid Method.

The Box Method factors harder trinomials such as 3x² + 7x + 4, but also handles simple cases.

It's similar to factoring by grouping or factoring by the AC method, but many students find it easier because of the routine process involved combined with the visual nature of the box.

The Coaching Calculator focuses on quadratic trinomials with coefficients up to 149.

Students develop their skills quickly as they work with the calculator and see each step of a process in detail.

You go step by step:

- Drawing the box
- Finding the target of the × and of the +
- Finding the signs of the integer pair
- Completing the box
- Factoring rows and columns
- Reading off the factors

or go straight to a particular step.

Students learn quickly when they focus on a particular step and investigate what happens when the sign of the x-coefficient switches between positive and negative.

The in depth Guide is ideal for students as the menu design reinforces each problem solving step and examples highlight and simplify algebra that students find hard.

For convenience, the app also has Coaching Calculators covering many quadratic factoring and solving methods :

- factoring by Difference of Squares
- factoring by Guess and Check or Trial and Error method
- factoring by Grouping or AC method
- solving by Completing the Square

Quadratic Factoring is a member of the Quadratic Series comprising QuadCoach Factor it Solve it, GuessCheck Factoring, Quadratic Grouping and EasyFactor Quadratics.

All apps have the same series of quadratic Coaching Calculators.

The GuessCheck Factoring Guide looks in depth at the Guess and Check or Trial and Error method.

The Quadratic Grouping Guide looks in depth at the factoring by Grouping or AC method.

The EasyFactor Quadratics Guide looks in depth at factoring by Difference of Squares and Inspection for simple cases.

QuadCoach Factor it Solve it has a mini-Guide and additional Coaching Calculators and mini-Guide covering the solving of a pair of simultaneous linear equations by the addition, elimination and substitution methods.

What's new

Major revision. Now includes Coaching Calculators for factoring by Difference of Squares, Guess and Check and Grouping. Also solving quadratic equations by Completing the Square.

Screenshots

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Last changed:

Feb 01, 2011

Category:

Education

Developer:

Walter Kissach

Version:

3.0

Average Rating:

2.00 (27)

Size:

4.2 MB

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