This unit provides strong mathematics learning experiences in a real-world context. The Rosada family asks your students for help as they open a Mexican restaurant. Students plan the menu, determine different combinations of tostada ingredients, analyze costs, set prices, expand into combination plates, and figure out the best ways to arrange tables and chairs in a new location.Throughout the unit students gain increasingly sophisticated understandings of combinations. They have many opportunities to work with data organization and analysis, and to explore aspects of statistics. The unit also strengthens number sense, addition/multiplication abilities, and understandings of money in the real world.