I am now convinced that you can't "teach" a child to do anything. What ends up happening is you explain the lesson, process, reasoning, etc. over and over again. To what might appear to be an eager face. They are actually absorbing everything you say, they just haven't "decided" that it is something they are on board for. Then some day in the future, they surprise you by doing it all on their own!
That's how it has been with many milestones in our household. Today Owen was riding his bike! Tomorrow... Who knows?
Enjoy the video.