I have just received a phone call from our headmaster and he said we can proceed with the project and we are going to have a group of students and a double lesson every week for this project next year! So exciting!!! I have to talk to Katriina later today and I will write more tomorrow.
Can I Help You? - Teacher Blog 
That is good news, indeed.
In our school, however, we are not willing to have the ninth graders to participate in this project and I am not their teacher, either. If you are fine with having my eigth year students, then I can join it, though I haven’t discussed it with them yet.
But let me know, if I can ask them. And another question is about the numbers. Was 15 the total number for the project or 15 from each school?
Good luck and let’s keep in touch,
Merle
Congratulations!!! so happy for you and your colleague. Excited to see how this project will evolve and will involve:-) Jun Song