Our Engineers worked hard designing and then redesigning our own straw bridges today! We tested and improved, with some improving bridge designs to hold twice what they originally held! Students shared with parents by teaching what they had learned. We finished with a visit to Craggy Rock to design bridges in four locations around the town. It was a great finish to a very cool experience. You can find more cool challenges by visiting http://www.pbs.org/wgbh/buildingbig/.