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Nearly all of today's Western teenagers have a profile on a social network site (SNS). As many risks have been reported, researchers and governments have emphasized the role of school education to teach teenagers how to deal safely with SNSs. However, little is known about the specific characteristics which would make interventions effective. Therefore, the overall objective of this research aims to propose a list of validated theoretical design principles for future development of educational materials about risks on SNSs. This research goal was pursued through a design-based research procedure. Thereby targeting teenagers of secondary education in eight separate studies, the different steps of the design-based research procedure have iteratively been completed. Firstly, a problem analysis was executed through three explorative studies, including an observational study, a theoretical evaluation of existing materials and a survey study. Secondly, initial solutions were developed and evaluated in practice through five quasi-experimental intervention studies. Thirdly, we reflected upon all the previous results to produce design principles. Finally, we conclude with an analysis of the design-based research methodology.

The purpose of this study is to analyze the content features of educational technology curricula for primary education developed by national governments. A qualitative cross-case document analysis of the national educational technology curriculum of Norway, Flanders and England was conducted. The analysis focuses on the underlying visions, specific aims and instruction related aspects that are integrated in the national educational technology curricula of the three cases under investigation. The results indicate that specific aims mainly focus on the critical use of educational technology; safe and responsible use of educational technology; information retrieval, processing and production; communication by use of educational technology; and use of educational technology for subject learning. It is possible that a discrepancy exists between the concepts of digital literacy and the specific aims that are addressed in educational technology curricula. Moreover, the rationales that underlie educational technology curricula represent a catalytic and social point of view rather than an economic one. The implications of our findings for curriculum developers and researchers are discussed.

In this essay, we state that establishing technology curricula by national governments causes a shift in the policy actions of educational technology support: from a technical rationale with a main focus on funding and resources to a pedagogical rationale with a main focus on student competencies. We illustrate our point of view by describing the formal educational technology curriculum recently administered by the government in Flanders. This curriculum is written in terms of attainment targets and has clear implications on the nature of educational technology which is no longer dependent on teachers' individual efforts or willingness, but is becoming compulsory at the school level. Furthermore, we present two levers that facilitate the integration process of educational technology in general and the realization of technology curricula in particular. Technology coordinators should act more as curriculum managers and change agents, and schools should jointly establish a technology policy plan.