TeachEngineering
Teach Engineering: Bridges
Through a five-lesson series that includes numerous hands-on activities, students are introduced to the importance and pervasiveness of bridges for connecting people to resources, places and other people, with references to many...
PBS
Pbs Kids:activities and Videos: Structures
PBS site provides videos and activities are hands-on challenges that focus on the engineering design process. They use simple materials, allow for multiple solutions, and are ideal for ages 9-12.