This document defines key terms related to groups and teams, including group dynamics, teamwork, and the differences between groups and teams. It outlines the objectives of understanding these concepts and differentiating team types. Groups are defined as collections of people with common characteristics or purpose, while teams are groups organized to work together. Formal and informal teams and task-oriented groups are described. The stages of group formation are provided, from initially forming to storming, norming, performing, and adjourning. Reasons people join groups including security, status, and goal achievement are explained. The document concludes with how teamwork can be assessed based on trust, communication, decision-making, leadership, goal acceptance, diversity, cohesion,