http://www.ode.state.or.us or http://www.openc.k12.or.us/standards/docs/enggls.pdf or http://www.mcrel.org
‘Twas the Night Before Round-Up, its illustrations, and activities at the back of the book cover many standards including the following:
History—
Understands the history of a local community and how communities in North America varied long ago.
Understands the people, events, problems, and ideas that were significant in creating the history of their state.
Reading—
Uses general skills and strategies of reading process.
Uses reading skills and strategies to understand and interpret literary and informational text.
Mathematics—
Uses strategies in the problem-solving process.
Fine Arts—
Uses viewing skills and strategies to understand and interpret visual media.