RULER program from Yale University

Chapter 9 endnote 22, from How Emotions are Made: The Secret Life of the Brain by Lisa Feldman Barrett.
Some context is:

In one study conducted by the Yale Center for Emotional Intelligence, schoolchildren were taught to broaden their knowledge and use of emotion words for twenty to thirty minutes per week. The results were improved social behavior and academic performance.

The Yale Center for Emotional Intelligence has developed RULER, a program that expands the emotion vocabularies of school aged children and teaches them how to wield their emotion concepts as skill. The acronym stands for Recognizing, Understanding, Labeling, Expressing, and Regulating emotion.

For example, RULER’s "Feeling Words Curriculum" helps students expand their emotion vocabulary in a way that is integrated into their daily academic instruction, and then children are taught how to use this vocabulary (i.e., how to categorize with their newly developing emotion concepts) by sharing personal stories, discussing world events, and studying developmentally appropriate storybooks and literature. The RULER curriculum guides each child, in effect, to bootstrap a new and improved conceptual system for emotion into his or her brain.