Second Step for Teachers. SFUSD employees: Find resources to support teachers teaching Social-Emotional Learning. Social and Emotional Learning (SEL) is about helping students develop a range of skills they need for school and life. This site has been created by a cross-functional team (Office of Pupil Services, School Health Programs, Research, Planning and Assessments, Early Education Department and Community Schools & Family Partnership) to provide a hub of Social-Emotional Learning and Culture/Climate resources for teachers and principals.