Instructional Design. Documents. Behaviorism,Cognitivism,Constructivism. Connectivism. Connectivism: A Learning Theory for the Digital Age December 12, 2004 George Siemens Update (April 5, 2005): I've added a website to explore this concept at www.connectivism.ca Introduction Behaviorism, cognitivism, and constructivism are the three broad learning theories most often utilized in the creation of instructional environments.