U.S. Geography:

• On each page, Adèle and Simon visit a new location in the United States. Reference is made to the city they are in, but usually the state is not mentioned. Develop geographical awareness by asking students to locate the state of each city or area that Adèle and Simon visit. Historical maps of the United States appear on the inside covers of the book and may be helpful.
• The following is a link to a map of the United States printed in 1908:
  
  www.historicmapworks.com/Map/US/58139/United+States/
  
  The number of states became 46 with the addition of Oklahoma in 1907. Note that New Mexico did not become a state until 1912.