This document provides instructions and examples for factoring trinomials. It begins with a do now section asking students to factor trinomials. It then identifies mistakes in sample factorizations and asks students to correct them. The remainder of the document provides a series of trinomials for students to factor with multiple choice answer choices. It emphasizes that factoring finds the roots of a polynomial and can be verified by graphing. It concludes by assigning homework problems factoring additional trinomials.