As someone that had learned programming to some degree several times, I do agree that a hands-on approach like this is optimal to start with. First have people see what they are doing, and then you can explain how and why it works before you continue.

It's similar to teaching people deeper strategy in games, you often need people to understand the basic concepts by trying it out before they are ready for more.

BTW, I'd actually spend a few words explaining what modules are in general, and curses in particular, even if you need to keep it simple at this stage.

Good work!