"the systematic study of teaching and learning, using established or validated criteria of scholarship, to understand how teaching (beliefs, behaviours, attitudes, and values) can maximize learning, and/or develop a more accurate understanding of learning, resulting in products that are publicly shared for critique and use by an appropriate community"
(Potter and Kustra, "The Relationship between Scholarly Teaching and SoTL:Modles, Distinctions, and Clarifications")
Video on the history of SoTL, produced by the International Society for the Scholarship of Teaching and Learning (ISSOTL) and the Center for Engaged Learning at Elon University: