What if you could challenge your third graders to design the train of the future? With this volume in the STEM Road Map Curriculum Series, you can! This title outlines a journey that steers students toward authentic problem solving while grounding them in integrated STEM disciplines. It is designed to meet the growing need to infuse real-world learning into K-12 classrooms, and is an interdisciplinary module that uses project- and problem-based learning to help your students to: learn about U.S. geography, explore the role of trains in the nation's development and in the 21st century; understand innovations in train technology, with a focus on maglev (magnetic levitation) trains; use inquiry activities to learn about magnetic interactions and calculate distances and time intervals; and apply this knowledge and work collaboratively while using the engineering design process. Students create a prototype train and prepare a presentation about their train's destination and design.