I love the idea of Solutionaries. I was introduced to this idea during a TED Talk and think it would be great to do as a modification of formal debate. We are facing serious social issues that will require ingenuity and creative thinking to solve or improve these issues.
We are born curious, and we intuitively want to solve problems. Spend a few moments with kids and there’s no doubt that if they focus on one thing, they will make an improvement. So what if we use that natural ability to facilitate teaching, and to enhance that ability instead of squelching it as our current education system is doing.
The Solutionaries link above shows a good example of a school working to develop their students into Solutionaries.