"First figure out why you want the students to learn the subject and what you want them to know, and the method will result more or less by common sense." Richard Feynman, 1982
The secret of aikido is embodied in the vacuum cleaner.
What enables it to work is not
what is there,
what is not there.
It creates a space for things to move into,
bundles them up in its center,
and moves them away.
You can't get a dog [or a person] to go where you want by forcing it. Their instinct is to pull against a force. You have to create a reason why it wants to go where you want. You have to lead.
All things gravitate toward a vacuum.
(Original blog post may be found here