“…The results of this study support the relevant literature, particularly concerning problem solving and algorithmic thinking (Fadi & McHugh, 2001, Muller & Haberman, 2008, system-level-perspective (Gal-Ezer & Zeldes, 2000;Ricks & Jackson, 2009), modelling (Mühling, Hubwieser, & Brinda 2010). They can be used for consolidating available curricular drafts for computer science as a teaching subject at school of the type available in many countries or currently in the state of revision, e.g., for England and Wales, Scotland, the USA, Israel, New Zealand, Germany, India, South Korea, Greece.…”