Learning goals: Teacher Facing Decide whether it makes sense to represent a situation with a proportional relationship, and explain (orally) the reasoning. Determine what information is needed to solve a problem involving proportional relationships. Ask questions to elicit that information. Write an equation to represent a proportional relationship, and use the equation to solve problems about the situation. Full lesson plan (warm-up, activities, synthesis, cool-down prompt) from 7.2 Introducing Proportional Relationships, Grade 7.