A purpose of this study is to grasp the features of technological assessment on "social networking service" of junior high school students. We conducted a survey about technological assessment of future social networking service to 448 from 7th to 9th grades in junior high school. As a result, the ratio of disapproval decision was significantly lower and the ratio of approval decision was significantly higher in 9th grade than 7th grade. In addition, discriminant analysis was conducted on viewpoints of technological assessment in order to find an influence on decision of "disapproval" and "approval". As a result, the influence of the personal viewpoint (as user's viewpoint) such as "effect of the consumption system" was strong in approval decision making. On the other hand, the influence of the social viewpoint (as non-user's viewpoint) such as "accident risks and cases" was strong in disapproval decision making. From these results, it is suggested that teachers should consider differences in decision by each grade and pay attention the necessity to deal with both the personal / user's and social / non-user's viewpoints in the lessons that dealing with advantages and disadvantages of social networking service.

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In a high school with one to one tablet PC environment, students used a learning SNS (Social Network Service) throughout several years in their class. In this paper, we investigated the changes in learning attitude of high school students through three years of use. By allowing all the students to evaluate the contribution degree of other students in collaborative task execution, they divided the other students into contribution group and general group, and analyzed changes in learning attitude. As a result, the contribution group shown enjoy in self-efficacy, writing strategy, and networking exchanges with teachers, over the time. On the other hand, from an interview survey to homeroom teacher confirmed, she has set a ground rule which develop students’ critical thinking. From these studies, the results indicated the changes in the characteristics of the student's attitude towards learning through the three years use of the learning SNS, and ideas on student support by the teachers when students proceed learning on the learning SNS.

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