7-4.14 Percent Error (OLD)

Student Facing Goals I can solve problems that involve percent error. Lesson Narrative Situations involving percent error can be more difficult than situations involving percent increase or percent decrease because the student has to decide which amount represents the whole. In this lesson students get practice using the language of percent error in various different situations, and identifying the correct amount, which is the whole, and the incorrect amount (MP1). They work with a multi-step problem involving percent error. They also see a common usage of percent error to express a range of possible values by thinking about a scale that claims to be accurate to within 0.5%. Understanding and finding percent error is important for solving real-world problems (MP4).

By Jeff Holcomb