The awards will be made according to the judging criteria provided. Grade levels or subjects are not criteria that will be used for awards.
We suggest contestants pick the most general problem on which they can make their best effort and submit a quality entry. Even if it is one particular subject or is limited to one level (early/middle/high school) or some other category, the entry can win.
We are definitely not looking for one single idea that would solve the entire problem of K12 education; instead, we are looking for practical and innovative solutions that work well in a defined domain.
We do need the method to be reduced to a prototype in 6 months and so need the details mentioned to evaluate that. If this contest is successful, we might want to partner with some selected participants to move further for prototyping stage.
As noted, the intellectual property of the winning entries will be retained by the sponsors. Only individual contests can make a determination of effort vs reward. However, we must mention that this contest is targeting well-defined ideas for a very worthy cause. The results can potentially benefit millions of learners who do not have access to quality education.