388 Summary of Learning Outcomes and Key Points 13-1 Describe types of groups and teams in organizations, why people join groups and teams, and the stages of group and team development. - A group is two or more people who interact regularly to accomplish a common purpose or goal. - General kinds of groups in organizations are - functional groups, - task groups and teams, and - informal or interest groups. - A team is a group of workers that functions as a unit, often with little or no supervision, to carry out organizational functions. 13-2 Discuss four essential characteristics of groups and teams. - People join functional groups and teams to pursue a career.