Learning goals: Teacher Facing Analyze given information about a situation involving multiple constraints and determine what additional information is needed to solve problems. Given a system of inequalities and their graphs, explain (orally and in writing) how to tell if a pair of values is a solution to the system. Practice writing systems of inequalities in two variables and finding the solution sets by reasoning or by graphing. Full lesson plan (warm-up, activities, synthesis, cool-down prompt) from Alg1.2 Linear Equations, Inequalities, and Systems, Algebra 1.