This paper investigates the possibility of a holistic interdisciplinary and cross-thematic educational approach of STEM (Science, Technology, Engineering, and Mathematics) and HASS (Humanities, Arts and Social Sciences) knowledge fields. The interdisciplinary educational approach of STEΜ and HASS knowledge branches, set out to resolve complex issues in an innovative way, can assist the development of the students into active and knowledgeable citizens so they will be able to face actual problems whose nature is always interdisciplinary. There is reference in elements which advocate the necessity of this holistic cross-thematic approach and additionally theories and techniques are established which are able to support it. Main characteristic of this development is its support with ICTs. Characteristics of a relevant educational scenario are presented. The scenario is implemented as a pilot experiment and relevant results can be extracted. The scenario is recommended as prototype due to its special interdisciplinarity, the educational techniques that were utilized, and its design procedure based on principles of Educational Management & Engineering and due to the positive results from its pilot implementation. Relevant conclusions are projected.
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