Learning goals: Teacher Facing Compare and contrast (orally) equations that do and do not represent proportional relationships. Generalize that an equation equivalent to the form $y=kx$ can represent a proportional relationship. Use a table to determine whether a given equation represents a proportional relationship, and justify (in writing) the decision. Full lesson plan (warm-up, activities, synthesis, cool-down prompt) from 7.2 Introducing Proportional Relationships, Grade 7.