This Instructional Activity is a part of the Lesson 1, Unit 9, Grade 7. The purpose of this activity is for students to apply proportional reasoning to scaling down a recipe and calculating the number of calories in one serving. In the next activity (and, if desired, in the next lesson), students will continue working with the recipe that they select in this activity. The digital version of this activity includes nutritional information about many more ingredients than were printed in students' books. If desired, explain to students that they are starting a series of activities that are based on the idea of imagining they could open their own restaurant.