First, pedagogic strategies (the ones instructional designers talk about) are based on general learning theoretical concepts: Behaviorism, Instructivism, Cognitivism, Constructionism, Constructivism, Socio-constructivism, Situated learning, etc. There’s often an overlap between these theories that explain how people learn and how one could bring people to learn. But I have seen over the years, we often put this under the one catch-all category, or banner of Constructivism, but it’s much more than that. It’s kind of like saying ‘Pedagogy’ when it’s so much more that that.
Second, design of strategies draws a lot from general pedagogical theory, but also from specialized research, such as understanding Heutagogy, Paragogy, Andragogy, etc. And these help us to understand how we will implement different technologies to meet our learning goals.
Third, educational technology has been a driving force to develop new strategies, with the basic assumption that educational technologies can facilitate pedagogical scenarios, but often we have tried to fit the pedagogy in after the fact, not as the reason for adopting a particular tool. It’s been kind of like putting the cart before the horse (please excuse my photoshop skills).
Via Peter Mellow