Abstract
In traditional research, the process of genesis of the joint action of conversation during lessons isn’t examined microscopically enough as the process of genesis of the relationship between communication and educational materials in the classroom space. Therefore, we take up joint attention during lessons. The aim of this study is to clarify the mechanism of the function of joint attention in a specific case during lessons. The conversation in a civics class of high school in a normal classroom where the desks are arranged in a U-shape was examined by focusing not only on speech contents but also on the several kinds of component act of joint attention. As a result, it was revealed that joint attention is relevant to forming group activities and promoting thinking about the educational materials through several critical moments such as the relationship between the whole of joint action and some local parts of that, identification of the physical things, the act of pointing, the hearing/ seeing relationship, and comparison or intercomparison of thinking. The illogical-looking conversation in a U-shaped class that contains hesitation of speech or complication of various contexts, with joint attention, was generated as joint action throughout the classroom space, and had a focus on the educational materials of civics.
