Diphtheria has broken out in Nome, Alaska. Teams of sled dogs carry medicine 800 miles over snow and ice to prevent an epidemic. Everyone was brave but one dog, Balto, made the difference between failure and success. (Houghton Mifflin Harcourt Trophies, 2005)

This lesson was created as part of the Basal Alignment Project, during which teachers created CCSS-aligned lessons for existing literary and information texts in basal readers. All page numbers and unit/week designations found in this lesson relate to the edition of the basal reader named above. If you are using a trade book or different edition of this title, the page/unit/week references in this lesson will not match. Consult the content referenced in the body of the lesson to determine appropriate page numbers for your text.