Anyone can learn computer science, even at the elementary school level. This book delves into the essential computer science concept of data collection using age-appropriate language and colorful illustrations. A meaningful storyline is paired with an accessible curricular topic to engage and excite readers. This book introduces readers to a relatable character and familiar situation, which demonstrates how data collection is used in everyday life. Ellie collects data on her trip to Ellis Island, which teaches her more about immigration to the United States. This fiction book is paired with the nonfiction book Let's Study Immigration (ISBN: 9781538353165). The instructional guide on the inside front and back covers provides: Vocabulary, Background knowledge, Text-dependent questions, Whole class activities, and Independent activities.