TED Talk for Tokyo Teachers Event. From the perspective of a mental health counselor, Jason Chare, this is mostly for educators in general. 15:24 min video.
By Herman B. Leonard.
In Education for Judgment: The Artistry of Discussion Leadership, edited by C. R. Christensen, David A. Garvin, and A. Sweet. Boston: Harvard Business School Press, 1991. This book chapter is mainly applicable to the classroom or seminar discussion.