You're right, I misread the "He began working with preschoolers" bit as professionally teaching the kids. > you will never understand the experience of a teach

You're right, I misread the "He began working with preschoolers" bit as professionally teaching the kids. > you will never understand the experience of a teacher by experimenting on students I'm not sure to follow, wouldn't you at least understand your own experience as a teacher by actually teaching to students ?