Choose a challenge, then take it through Think, Map, and Make — at each stage you add what you made in its tool, as much of it as you made. Picking a challenge opens Think straight away; after that, a stage opens when you mark the one before it done. Nothing here is timed, and nothing you write is stored.
Pick your challenge and Think opens straight away. At each stage, add what you made in its tool — press + once for each file, as many times as you need. After Think, a stage opens when you mark the one before it done.
Who has marked each stage done, and how many files they have added. There is no clock: the arc runs at the pace the room runs at.