Teaching software

I have been teaching software for a couple of years to a wide variety of audiences, from kids to computer engineering students. My experience is that around 1% can do it without my help. About two thirds lose interest after a month and about one third have difficulty initially but if I am patient and keep on helping and motivating them, they succeed. If we liken learning software to moving a large stone, the picture is as follows:

I optimize my teaching methods to serve the one third who can go over the hilltop with a little push from me.