The best teachers help us discover, then celebrate the discovery with us. That process takes longer than simply telling people to listen, take notes, memorize, then parrot back the words. The secret is coaching. By its very nature, coaching is personal. And that is what makes it powerful.
Coaches are teachers who know their material well, and know their students equally well.
They have an understanding of the student's current grasp of the subject. They know because they have asked questions. They have listened. The employee not only understands the goal, but can teach it to others. It builds a body of understanding, and, if done well, helps build a workplace culture.