Lesson Objective: Apply knowledge of representing proportional relationships with equations and graphs.

Students will apply their knowledge of proportional relationships, equations, tables, and graphs to create a pitch to potential investors, their parents, for a pizza parlor. This lesson builds on students’ work with graphing and constant of proportionality, and introduces the idea of profit being the difference between sales and costs.

Key Concept students will use:

Skills students will use:

Students engage in Mathematical Practice 4 as they model the relationship between profits, costs, and selling prices. MP6 (attend to precision) is also important in this lesson as students must figure out the relationships between multiple quantities and relationships.

Key vocabulary: