Some quality books to support the ground school notes perhaps.
Particularly as he is doing a BSc, some books would be very accessable and useful to him that your average trainee wouldn't have a hope with.
Handling the Big Jets.
Ed Pallets book on Automatic Flight Systems (I forget the exact title but I'm sure someone else will remember it. If not I'll look it up later, in the mean time I have to get out to work!)
PB