Team dynamics involve groups working together towards common goals. Effective team dynamics require cooperation, communication, and addressing challenges like decision making, conflict management, and time management. There are various stages of team development and roles that individuals can take, such as a coordinator, shaper, or resource investigator. These roles each have strengths that can help the team but also potential weaknesses if not managed properly. Maintaining positive team dynamics is important for overcoming obstacles and achieving goals through group effort.