In the lesson linked below, students will use X problems and generic rectangles to factor trinomials where a is greater than 1. Students will practice looking for a greatest common factor.
Lesson guidelines: http://auhsdmath.pbworks.com/w/file/fetch/60875920/5_0%20Teacher%20DirectionsFactor-Solve.pdf
Generic Rectangles II: http://auhsdmath.pbworks.com/w/file/fetch/60875921/5_1Generic%20RectanglesII.pdf
Roll & factor- GCF: http://auhsdmath.pbworks.com/w/file/fetch/60875922/5_2Roll%26Factor.pdf