Algebra 1 Online! Henrico County Public Schools, Virginia
Module - Factoring
Lesson 4 - Factoring Trinomials
 Lessons 1- Factors and Greatest Common Factors 2- Factoring Using the Distributive Property 3- Difference of Squares 4- Factoring Trinomials 5- Perfect Squares and Factoring 6- Solving by Factoring 7- Module Review
SOL

A.2c - The student will perform operations on polynomials, including factoring completely first- and second-degree binomials and trinomials in one or two variables. Graphing calculators will be used as a tool for factoring and for confirming algebraic factorizations.

Common Core Standards
 A-SSE.2 A-SSE.3a A-APR.4 F-IF.8a
Warm-up
Lessons
Videos
1. Factoring Trinomials with Leading Coefficient of 1
2. Factoring Trinomials with Leading Coefficient not equal (≠) to 1
3. Factoring by Grouping
4. Video: PH Factoring Trinomials with Two Variables
5. Video: PH Real World Factoring Problems
Explore Learning
1. Modeling the Factorization of x^2+bx+c: Factor a polynomial with a leading coefficient equal to 1 using an area model. Use step‑by‑step feedback to diagnose any mistakes.
2. Quadratics in Factored Form: Investigate the factors of a quadratic through its graph and through its equation. Vary the roots of the quadratic and examine how the graph and the equation change in response.
Geogebra

Internet Sites
1. Interactive Notes: Factoring - lessons and practice problems from Regentsprep.org
2. Interactive Notes: Factoring - notes and quiz on factoring trinomials at Math for Morons
3. Notes: Factoring Quadratics - notes on factoring trinomials at Purplemath.com