To Get to the Other Side: Designing Bridges is an engineering unit from EIE and The Museum of Science in Boston geared towards Grades 1-5. Students will be building upon their knowledge of pushes and pulls as they explore how force and balance act upon different structures; as well incorporating the engineering process to design a strong, stable bridge. Modifications and extensions are included for upper elementary students in grades 3-5. Students will be introduced to the storybook Javier Builds a Bridge where they will learn about the role of civil engineers, various types of bridges, and how Javier solves a problem using the steps of the Engineering Design Process. Each of the four (4) lessons in this unit build upon the previous lesson. Lesson one (1) focuses on the role of civil engineers in designing structures and the problems, criteria, constraints and solutions associated with building bridges. Lesson two (2) focuses on forces that can increase the strength/stability of a structure. Lesson three (3) activities allow the students to experiment and test three different bridge types, while in lesson four (4) students use what they have learned in the previous lessons to design and implement a bridge design and then test and improve it based on their results.