What is a social practice according to the text?

Question based on the following passage:

The “Social Practice” of Teaching

Examining teaching from the context of a ‘social practice’ may provide us with fresh insights that will challenge the accepted ways of seeing the world of teaching with important implications for faculty development. First, we will look at what we mean by a social practice and then see how teaching falls into that category. A social practice needs to be understood in terms of purpose, context, and a complex array of norms. A social practice is, first, a form of activity that has grown out of common needs in a community to accomplish certain purposes.

A system of etiquette and a means for communication serve to make human society more civil. Second, a social practice involves shared and mutually understood ways of behaving or acting. Third, the patterns of action are guided by a complex array or norms that we might call rules, standards, principles, precepts, and unwritten policies. These norms have authority (people comply willingly), and they are created and recreated in and through the interactions of those involved in the practice (Case, 1990; Selman, 1989; MacIntyre, 1984; Taylor, 1983). The norms provide reasons for the actions or behaviors of individuals. As in etiquette using particular forms of address, handshaking, and removing or wearing particular headwear are the behaviors that constitute the practice.

The behaviors have meaning only in terms of the context of that particular community and purpose and can only be explained in relation to the guiding norms. The feature of a social practice (they develop out of the common needs of the community) is clearly consistent with what has already been said about the purposive nature of teaching. Teaching is an activity that has grown out of the need in a community to pass on its knowledge, mores, and behaviors and in medical schools these are formulated as mission statements which include educational aims. To view teaching as a social practice is to acknowledge, first and foremost, the expectations society has for teaching, or in other words, the particular purposes of teaching.

(Available in: D’Eon, M., Overgaard, V., & Harding, S. R. (2000). Advances in Health Sciences Education, 5(2), 151–162. Accessed on May 18st, 2019. Adapted.)

What is a social practice according to the text?