Learning goals: Teacher Facing Find the solution to a one-variable inequality by reasoning and by solving a related equation and testing values greater than and less than that solution. Graph the solution to an inequality as a ray on a number line and interpret the solution in context. Understand that the solution to an inequality is a range of values that make the inequality true. Full lesson plan (warm-up, activities, synthesis, cool-down prompt) from Alg1.2 Linear Equations, Inequalities, and Systems, Algebra 1.