This lesson guides students through solving and graphing linear inequalities, starting with one variable and progressing to two-variable inequalities. Using Desmos, interactive matching games, and real-life scenario role-plays, students will explore the meaning of inequality symbols, practice graphing solution sets on number lines and coordinate planes and apply their understanding to real-world situations. By the end of the lesson, students will confidently solve and graph linear inequalities. 

Approximate Time:   60 minutes 

Grade Level:   8th Grade, 9th Grade (Algebra 1) 

Standards:    MS CCRS: A.REI.3, A.REI.10, A.REI.12

A.REI.3: Solve linear equations and inequalities in one variable, including those with coefficients represented by letters. 
A.REI.10: Understand that the graph of an equation in two variables represents all its solutions. 
A.REI.12: Graph the solutions to a linear inequality in two variables as a half-plane, and graph solution sets for systems as intersections.