This document defines groups and teams in the workplace. It notes that a small group has 3-20 people who share a common objective, while larger groups have more formality and agreed upon rules/standards. A team is defined as having 2 or more people who interact, are accountable for a common goal, and see themselves as a social entity. The document outlines different types of teams and the typical 5 stage model of team development: forming, storming, norming, performing, and adjourning. It discusses factors that contribute to effective team communication, performance, and agency within an organization.