This video contains information about what educational dialogue is, how and why it is used, and how it can be supported in classrooms.
Resources referenced in the video:
Knight, Simon (2014). Creating a supportive environment for classroom dialogue. In: Hennessy, S.; Warwick, P.; Brown, L.; Rawlins, D. and Neale, C. eds. Developing Interactive Teaching and Learning Using the IWB. Open University Press.
A Teacher’s Guide to Dialogic Pedagogy Part 1: The What and the Why, Neil Phillipson: http://21stcenturylearners.org.uk/?p=1337
Talk in the Classroom, Neil Mercer: https://player.captivate.fm/episode/492260c3-952b-4740-bacd-db94a28f1e54