Recently the wireless internet technologies have been widely used in education environments. The purpose of this paper is to design and implement mobile class management support system. The proposed system is based on the existing CSCL theory and modified in accordance with mobile environments. The proposed system has the following characteristics. First, various types of cooperation are possible in this system. In this system, students can participate actively through tools such as BBS. Second, wired and wireless web sites are linked systematically so that users can access via either site. Two sites are complementary each other. Third, parents are encouraged to participate in class activities. Some basic information such as curriculum and daily announcement is open for parents. The proposed system has been applied to elementary school students. Extensive survey shows that the proposed system has good effect on participation, interaction, and satisfaction in class management, respectively.