Analysis of communication between the student who played a role as gatekeeper and the student who Waved a role as end user in the science class

本研究是在中小学科学课探究活动中进行的实践研究。本研究旨在通过分析学生的交流，明确扮演守门人角色的学生和扮演最终用户角色的学生的谈话内容。以小学四年级科学B科“物体的体积和温度”为单位进行研究。该单元于2007年6月至7月进行了实践。我们用录音机和摄像机记录了课堂的情况。我们分析了录音中教师和学生的对话和行动。结果，得出了以下观点。学生在扮演守门人角色的学习者和扮演最终用户角色的学生之间听到对方的现象自然出现。另外，学生之间相互教授的现象也自然出现了，初中的调查对象是二年级科学第二单元“植物的世界”领域的小单元“叶子的结构和作品”。2007年8月至9月实行了这一做法。我们用录音机和摄像机记录了课堂的情况。我们分析了录音中教师和学生的对话和行动。结果，得出了以下观点。许多学生离开，去其他学生相互交换信息，他们听到了他们不理解的东西，并相互教授的行为自然发生。

This study is a practical study in the research activity of the science class of the elementary and junior high school. In this research, we were aimed at clarifying qualitative contents of the conversation of the student who played a role as gatekeeper and the student who played a role as end user by analyzing communication by students.A study in the elementary school is unit "a volume and temperature of the object" of the fourth grade science B division. This unit was practiced for from June to July in 2007. We recorded the state of the class with a voice recorder and a video camera. And we analyzed conversations and actions of a teacher and the students provided from the recording. As a result, the following point was obtained. The phenomenon that a student heard each other among the learners who played the role of gatekeeper and the student who played a role as end user appeared naturally. In addition, the phenomenon that I taught each other between students appeared naturally.The investigation object of the junior high school was small unit "a structure and a work of the leaf' of the field of the second unit "world of the plant" of the second grade science. This was practiced for from August to September in 2007. We recorded the state of the class with a voice recorder and a video camera. And we analyzed conversations and actions of a teacher and the students provided from the recording. As a result, the following point was obtained. Many students left and went to other student to change information mutually, and the action that they heard what they did not understand and taught each other occurred naturally.