West Metro Fire (Lakewood, CO) came up with a great idea for training recruit firefighters about multiple topics at once. The instructors had the recruits to build burn pods.
The idea was to teach them about the various construction types found in thier district.Different constriction types react to fire in different ways. See how these types are made and how they respond to buring is an important for firefighter safety.
In addition this project helped with creating some teamwork wiht the recruits. I would also think there is some cost savings by having the build the burn pods verusus paying academy staff or a contractor to do all the labor.