# Copying a Flyer - Noticing and Wondering

*I wonder *if the 160% refers to the side lengths or the area of the poster.*I wonder *what copier setting would return the poster to its original size.*I notice *that a setting of 40% doesn't make sense.*I wonder *if a "double number line" could help me understand this problem.*I wonder *if the setting that I would need depends on the size of the original flyer.*I notice *that the "whole" changes in the middle of the problem!

After students have found the setting that returns the flyer to its original size:*I wonder *what the connection is between 160% and my answer of 62.5%.

adapted from *A**dvanced Common Core Math Explorations: Ratios, Proportions, and Similarity *(p. )* *by Jerry Burkhart.

Copyright 2016, Prufrock Press: Waco, TX. Reproduced with permission.