Your students are about to become engineers, historians, mathematicians, and writers, all in one incredible day. This full-day, fully-planned interdisciplinary lesson takes 5th graders on a journey from ancient Roman arch bridges all the way to the Golden Gate — then challenges them to build and load-test their own bridge using popsicle sticks, toothpicks, tape, and glue. It's hands-on, it's engaging, and it covers Science, ELA, Math, and Social Studies standards all at once. Teachers love it. K