Key Features Description A series of sassy “what if"s” keep readers guessing as they compare the form and functions of their bone structure to animal skeletons. A series of sassy “what if"s” keep readers guessing as they compare the form and functions of their bone structure to animal skeletons. Standards RI.3.7. Use information gained from illustrations (e.g., maps, photographs) and the words in a text to demonstrate understanding of the text (e.g., where, when, why, and how key events occur). RI.3.7. Use information gained from illustrations (e.g., maps, photographs) and the words in a text to demonstrate understanding of the text (e.g., where, when, why, and how key events occur). Product Details Item #: NTS827261 ISBN13: 9781338272611 Format: Paperback Book Pages: 32 Grades: 3 - 4 Lexile® Measure: 580L Guided Reading Level: GR Level O DRA Level: 34 - 38 ACR Level: 3.7 Key Features Item #: NTS827261 ISBN13: 9781338272611 Format: Paperback Book Pages: 32 Grades: 3 - 4 Lexile® Measure: 580L Guided Reading Level: GR Level O DRA Level: 34 - 38 ACR Level: 3.7