by Dan Meyer
January 18, 2016
Which bridge is best?
Why is a very long bridge bad?
Why is a very short bridge bad?
- Teacher noteA: The shortest one is lousy because it's too steep to safely cross. The longest one is lousy because, while it's safe enough to cross, it's longer than it needs to be, which is wasteful. The best is probably one of the other two and there may be one that's even better.
What information would be helpful to know to figure out the best possible bridge length?
- Teacher noteThe maximum bridge angle is 18 degrees. The distance the dock drops below the pier is 4.1 meters.
- Teacher noteSend students to the link below. Ask them to come up with a reliable way to make the right bridge length the first time.
- LinkBoat Dock