This nonfiction reading unit (level O) focuses on the U.S. flag. Students learn how the U.S. got its flag and how and why people show respect to the flag. The unit contains teacher support pages, a reading selection with supporting illustrations, and activities to guide students in close reading of the text. Students also gain practice applying content and academic vocabulary. The unit concludes with a lesson exploring text structure (Main Idea and Details) and a text-based writing activity.