This book is the first in a series of five books that was developed by the Our Mathematical World team to demonstrate the PULSE problem-solving approach in action. PULSE stands for: Pause, Understand and Remember, Lay it out, Solve, and Evaluate. This book focuses on “Pause,” reminding students to take a deep breath and focus on the problem. Try following along with Pilar, Uriah, Lamar, Simone, and Eduardo as they showcase the PULSE approach to solve the math problems they encounter in this book.