I forgot to share this when it first came out at the end of last year. This is my contribution to Springer's Encyclopedia of Teacher Education, a brief (3000 word) article that gives a broad overview of the main ways in which the role of a teacher is (always) spread across many individuals, as well as a little general advice about ways that designated teachers might make use of this knowledge. Being an encyclopaedia article there's nothing particularly earth shattering in it, but I think it captures the essence of most perspectives on how the act of teaching is shared among us, from deliberate collaborations through to socially distributed cognition and collectives, and the conclusion very gently hints at what are actually quite significant consequences of this perspective for how teachers should teach (tl;dr: embrace the crowd, don't fight it).

Unfortunately it is paywalled (I was invited to submit this by a friend), but there's a preprint available at https://auspace.athabascau.ca/handle/2149/3641 which is fairly close to the final version.

Original citation:

Dron J. (2020) Distributed Teaching. In: Peters M. (eds) Encyclopedia of Teacher Education. Springer, Singapore