[informatimago]

Let her write the programs SHE wants to write.

Now, of course, the difficulty here is that the young programmer may want to write programs that are beyond his knowledge and abilities. For example, I wanted to write a basic interpreter, and not having recursion, I had a very hard time with parenthesized expressions. I also wanted to do a 3D universe simulation, way beyond my and my computer capabilities at the time. :-)

But as an experienced programmer, you can find out what she wants to program, and direct her teaching to let her make progress toward this goal.