This Instructional Activity is a part of the Lesson 2, Unit 5, Grade 8. In this activity students are presented with a series of questions like, "A person is 60 inches tall. Do you know their height in feet?" For some of the questions the answer is "yes" (because you can convert from inches to feet by dividing by 12). In other cases the answer is "no" (for example, "A person is 14 years old. Do you know their height?").