Interesting post looking at whether the knowledge of instructional design principles is necessary for the study of instructional design. "Does it matter if Cammy knows (and I have no idea if she does) what the Dick/Carey, Smith/Ragan, or Morrison/Ross/Kemp models are? What about Component Display Theory, Elaboration Theory, the Conditions of Learning, Learning Hierarchies, the ARCS model, 4C/ID, ADDIE, ASSURE, Schema theory, Cognitive apprenticeship, Social Learning theory, or Cognitive flexibility? Does she need to know those?" Via Cammy Bean.