When we started rolling out our iPad program at our school a few years ago, there were no apps to show students how to code. A quick glance at the app store now features a whole section on coding. But which one to choose? Once again, the thorough reviews from Edudemic gives a nice guide on which one to choose.
A note on her review: Having done a quite a few of the online coding tutorials, I find that in many of the tutorials, when you come to an impasse, they give you a little hint but mostly you have to go elsewhere to find the answer. And when I say elsewhere, I of course mean the internet. Many programming resources, guides, glossaries, can be found online.And when that fails, you ask someone! Programming is way more social and cooperative than people realize.
It looks like this might be a great place to begin!
One more note: this app costs $2.99.