Second Step is a classroom-based social-skills program for children 4 to 14 years of age that teaches socioemotional skills aimed at reducing impulsive and aggressive behavior while increasing social competence. The program builds on cognitive behavioral intervention models integrated with social learning theory, empathy research, and social information-processing theories. The program consists of in-school curricula, parent training, and skill development. Second Step teaches children to identify and understand their own and others’ emotions, reduce impulsiveness and choose positive goals, and manage their emotional reactions and decisionmaking process when emotionally aroused. The curriculum is divided into two age groups: preschool through 5th grade (with 20 to 25 lessons per year) and 6th through 9th grade (with 15 lessons in year 1 and 8 lessons in the following 2 years). Each curriculum contains five teaching kits that build sequentially and cover empathy, impulse control, and anger management in developmentally and age-appropriate ways. Group decisionmaking, modeling, coaching, and practice are demonstrated in the Second Step lessons using interpersonal situations presented in photos or video format.