> but the Radio shack kit never really explained why anything worked the way it did...
This has been my experience also. We recently built a solar powered toy with my nephews and when we got to the end they asked 'so how does it work?' which hit the point home for me.
Do you have any ideas on how to create engaging content for the app around this? We've got so far: - Mini articles on each component (with accompanying video). - Mini quizzes to embed learning.