The author identifies for the first time central concepts of all STEM subject didactics and integrates these concepts into coherent STEM concepts. In addition, he considers the possible pedagogical and didactical added value of such integrated STEM concepts. The author elaborates that both technology and geography didactics should be at the center of a complete STEM didactics and that both geography and unabridged technology instruction are indispensable prerequisites for successful STEM instruction.weiterlesen