No one can teach you what you already know. Others can help you develop and uncover and nurture what you already know, but I believe that this is different than "teaching." Teachers do both: Teach and uncover. The best teachers know where uncovering starts and ends. They look for "talent" (latent abilities) rather than mostly focusing on every little error that a person may make.
So it is with dance. If "dancing" means "to respond bodily to music." No one can teach you to dance because you already were born with that hardwired to your humanity. The same is true of being the speaking animal. No one has truly "taught" you to speak--to communicate your feeling and desires. You were born to dance and speak as a human animal. It is too late to teach children to speak or dance at grammar school. They already can without the "benefit" of education. Those who are the best teacher-guides know (or at least intuit) that their role is to
co-discover (the external world) and
co-uncover (the internal world) of these primary human talents of dance and speech.