Computer science is all around us, at school, at home, and in the community. This book gives readers the essential tools they need to understand the concept of tenacity and perseverance. Brilliant color photographs and accessible text will engage readers and allow them to connect deeply with the concept. The computer science topic is paired with an age-appropriate curricular topic to deepen readers' learning experience and show how tenacity and perseverance are helpful in the real world. In this book, readers will follow a narrator as they try to complete a difficult puzzle. This nonfiction title is paired with the fiction title Tomás's Puzzle (ISBN: 9781538351826). The instructional guide on the inside front and back covers provides: Vocabulary, Background knowledge, Text-dependent questions, Whole class activities, and Independent activities.