This study was conducted in order to understand elementary students\' internet community participation types. In order to do that, diverse factors that affect such patterns need to be examined, which is possible through the analysis of interactions between students, students and teachers, and students and environment. For this study, close observation was conducted for 8 month period from March 2, 2005 to October 31, 2005 on internet communities organized by students in a 6th grader class in Rainbow Elementary school. As a methodology, the educational ethnography, a qualitative researches based approach, was employed. From elementary students\' interactions with other students, teachers, and internet environment, findings could be drawn as followings in terms of internet community activities. First, positive interactions among students are seen such as raising interests in each other, consulting with others, cooperation, and participation. Negative interactions are also detected such as criticizing, invasion of privacy, and spying-on. Second, in the interactions between students and teachers, students recognize teachers\' activities as positive when they organize and operate communities in a way that chances are given fair to every student for participation and when they create atmosphere that is encouraging and inspiring students. On the other hand, if teachers praise some students preferentially or reply their postings selectively, students regard it as favoritism and think negative about it. Third, the internet access environment, amount of time allowed for computer usage, and parents understanding on the internet also affect students\'participation in classroom internet communities. If parents are generous to children\'s internet usage and provide goodphysical environment for internet access, students are able to comfortably log in communities and post their candid opinions. To summarize, based on the research on elementary school students\' internet community participating patterns and interactions with their environment, this study searches teaching directions and find suggestions for succeeding studies and their methodology.