Social and Emotional Learning (SEL) is the process through which children and adults learn to understand and manage emotions, set and achieve positive goals, feel and show empathy for others, establish and maintain positive relationships, and make responsible decisions. (Excerpt taken from casel.org)
Most schools have been teaching SEL for years. However, over the past 10 years the focus has been to teach these skills in an effort to prevent or remediate early social emotional issues. Most schools are working to build a system in which SEL can be taught explicitly in the classroom, in much the same way math or reading is taught. We believe that SEL does not happen in isolation but it build through years of direct instruction and reinforcement.