I would like to follow this post up with a report and some new thoughts.
I modeled the technique mentioned in the initial post to my oldest son, Garett, offering to take his punishment for him. He had lost the use of an Ipod Touch for video games. I explained what I was doing and how it was similar to Jesus taking our place.
He nodded and ran off to play his games. I wondered if the lesson took root.
Several months later I found myself giving my youngest son, Thabo, consequences for a choice he made. Garett, pipes up, offering to take the punishment for his brother.
He said it makes him sad for his brother to miss out and he wants to take his place. He tells me this is what Jesus did for him.