The Coping Skills: Anger worksheet describes six techniques for managing anger. Some of these skills can help to prevent or minimize explosive anger, such as triggers and warning signs. Other skills are intended to take control of anger, such as diversions, time-outs, and deep breathing.
Each skill has a brief description, and instructions on how it can be used. In session, make a point to practice each skill, and discuss when each one might be useful for your client. Additionally, stress the importance of practice, even when skills are not actively needed. Some anger coping skills, such as deep breathing, have long-last effects that can be helpful all day–not just in the heat of the moment.
Research: Del Vecchio, T., & O'Leary, K. D. (2004). Effectiveness of anger treatments for specific anger problems: A meta-analytic review. Clinical psychology review, 24(1), 15-34.