Which term describes shared understanding among participants in an activity?

• A. Private speech
• B. Intersubjectivity
• C. Zone of proximal development
• D. Scaffolding

Answer: (B)

Intersubjectivity is the shared understanding among participants in an activity. It arises when people communicate, negotiate meanings, and align their interpretations so they operate from a common frame of reference. This shared ground is what allows coordinated action, mutual attention, and collaborative problem solving, enabling the group to move forward together rather than talking past one another. Private speech is individual self-talk used to guide one’s own actions, not shared with others. The zone of proximal development describes what a learner can do with guidance versus alone, focusing on potential rather than shared meaning. Scaffolding refers to the temporary support provided to help a learner reach higher performance.