Hey radi and welcome to the forums.

I suggest some programming. Doesn't have to be overly technical, but usually this kind of work requires some kind of programming of some sort.

Maybe he could write a simple game like a guessing game, or a text-based game to start off with. Although QBASIC doesn't teach you how to become a "good technical programmer", I would still recommend it since it is very easy to learn and the results can be seen pretty quickly.