During the last decade there has been a call for schools to become more active in the promotion of students’ social and emotional learning (SEL). Given that teachers are significant adults in young people’s lives, they are often in the best position to deliver SEL programs. This small in-depth study investigated the impact of implementing a specific SEL program, “The Best of Coping”, on both the teacher and a class of 26 Year 9 (15-16 years) students. The study used a mixed methodology to evaluate the impact of the program. Both quantitative and qualitative data, including two case studies and entries from the teacher’s reflective journal, are reported. Changes in coping for both teacher and students as well as a positive impact on relationships between teachers and students were demonstrated. The study highlights the importance of the teacher’s role in implementing SEL programs and the challenges for teachers of delivering these programs. Issues associated with the implementation of school-based coping skills programs and the role of educational psychologists in supporting teachers in this work are discussed.