Word of the Day - Salutary Neglect

Today my master teacher at Atascadero High School shared a non-in-the-textbook expression with his 10th-grade world history classes to which I have never before been exposed: Salutary Neglect
This act of effective teaching on the part of my master teacher is in accordance with one element of my personal teaching philosophy: use scholarly language and terminology that is useful and appropriate but not to be found in the core curriculum or textbook.