For thousands of years people from da Vinci to Einstein have created models to help them better understand patterns and processes in the world around them. Computers make it easier for novices to build and explore their own models and learn new scientific ideas in the process. This book introduces teachers and students to designing, creating, and investigating models in StarLogo. This resource aims to help educators and their students learn to build their own models, not just use models constructed by others, even if they have no previous modeling or programming experience; cut across traditional disciplinary boundaries to help illuminate the connections among different sciences, social sciences, and mathematics; combine computer activities with "in-the-world activities" providing teachers and students with the best of both worlds; introduce the study of "complex systems," a field that has attracted great attention in the scientific community during the past decade; and provide explicit links to state and national math and science content standards. This book consists of three main sections. The first six chapters explain the philosophy behind the StarLogo, and introduce modeling concepts. The activities and challenges in the second section form the core of the Adventures curriculum. The activities are group exercises that help participants gain a first-person perspective on complex, dynamic models. The challenges are sequential lessons that help develop both model-building skills and a better understanding of complex systems. The third section presents an appendices containing notes about MacStarLogo, collected hints from the challenges, and an explanation of common StarLogo error messages. A CD-ROM with StarLogo and classroom projects is also included. (Contains 33 references.) (ASK)