Andy, Great Concept. I wish I was back at school in order to get a go at this :) ! As mentioned by openIDEO in the previous comment, the community will give you things to think about such as the format such as time based rounds or objective based building? Perhaps using the built model from the previous round of ''debates'' to then adapt into a completely new end result - sort of a snowball effect using the ''debate'' topics to build and solve bigger and better things. All the best and I will be sticking around on this idea for sure ! :)
Nice line of thinking there Benjamin. Every child at school will get the same answer using the same mundane process. Does the kid who spots a slightly different way of doing it get any additional credit? No. I did product design and development at university and it was a lot to do with the process of finding a solution as you mentioned. Even if the idea wasn't great; you gained a lot of credit for the rationale behind how you arrived at the solution. So, yes i think for the majority of subjects (excluding perhaps science where there generally is an accepted correct answer) kids should be encouraged to find their own way of doing things - perhaps with more of an emphasis on doing projects rather than the tedious memorizing and regurgitating of answers for exams?