Have you shown them this video?
https://vimeo.com/172737314
You will receive an email with links to download PDF certificates for each of the teams that submitted using your classroom code. We haven't finalised the design just yet but my plan is for them to show a map of the world with an ISS icon showing exactly where it was when the code ran. It will also show the team name, team member names, school name and the exact times the code started and ended. These won't be available until after the code has been run on board the ISS, we expect to be able to send them out in early February 2018.