Key Features Description A young T-Rex makes a big mess until his friends teach him the benefits of behaving calmly at school. "Eye-catching" -Booklist A young T-Rex makes a big mess until his friends teach him the benefits of behaving calmly at school. "Eye-catching" -Booklist Product Details Item #: NTS835763 ISBN13: 9781338357639 Format: Paperback Book Pages: 32 Grades: Pre-K Lexile® Measure: AD290L Guided Reading Level: GR Level K DRA Level: 16 - 18 Key Features Item #: NTS835763 ISBN13: 9781338357639 Format: Paperback Book Pages: 32 Grades: Pre-K Lexile® Measure: AD290L Guided Reading Level: GR Level K DRA Level: 16 - 18