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 computer science skill of defining the problem. 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 people define problems in the real world. In this book, readers will learn about the invasive species that are changing the Everglades ecosystem, and how people are trying to solve that problem. This nonfiction book is paired with the fiction book The Great Pest Problem (ISBN: 9781508137634). The instructional guide on the inside front and back covers provides: Vocabulary, Background knowledge, Text-dependent questions, Whole class activities, and Independent activities.