1. Described the differences between formal and informal groups, as well as the four main types of groups: command, task, interest, and friendship.
2. Explained how roles, norms, status, size, and cohesiveness impact group behavior and performance. It discussed how these factors can be leveraged by managers.
3. Discussed techniques for effective group decision-making and potential pitfalls like groupthink. It also covered how group processes like conformity and shift can influence decisions.
4. Defined teams and contrasted them with work groups. It described different types of teams and presented a model for team effectiveness with key roles and considerations for creating effective teams.