Your target audience is students of grades 9-12. I think they are few in the world for such a project. Or maybe I'm wrong? Maybe it's worth to cover a little more audience?
The target reach of Õpet for students in high school and grades 9-12 is easily 400 million. This colossal size of the market will continue to grow only as the world moves towards the knowledge economy, and educational opportunities and technologies are increasingly growing in developing countries.