Learning goals: Teacher Facing Identify an inequality, a graph, an ordered pair, and a description that represent the constraints and possible solutions in a situation. Understand that a constraint on two variables can be represented by an inequality, a graph (a half-plane), and a verbal description. Write inequalities in two variables to represent the constraints in a situation and use technology to graph the solution set to answer questions about the situation. Full lesson plan (warm-up, activities, synthesis, cool-down prompt) from Alg1.2 Linear Equations, Inequalities, and Systems, Algebra 1.