At which stage of Tuckman's development do group members introduce themselves and share ideas, while a leader is not yet identified?

In Tuckman's model of group development, the stage where group members introduce themselves and begin to share ideas, all while a leader has not yet emerged, is indeed the forming stage. During this initial stage, individuals come together as a group and start to understand their roles. They may be cautious and polite as they get acquainted with one another’s backgrounds and perspectives.

During forming, the focus is on establishing relationships and developing a comfort level among team members. Communication tends to be polite and tentative, as individuals are still figuring out how they will work together. A clear leadership structure usually has not yet been established, leading to a more collaborative atmosphere where everyone's contributions are welcome but not directed by a designated leader.

In contrast, the other stages involve more defined roles and the emergence of conflict or collaboration. For instance, storming often includes conflict as members begin to assert their opinions, while norming involves the establishment of group norms and roles. The performing stage is characterized by high efficiency and productivity, where the team has settled into its roles and is working towards its goals effectively.