During my last post I realized that I needed to update my view on this theory.  Constructivism is a sound theory on human learning except for one thing, it really didn’t change practice all that much.  Its central insight (especially in the Vygotskian version) is that learning and knowledge are social, but that insight changed very little in educational practice where it should have turned practice on its head.  I have come to believe that this is because there was no adequate model of social learning.  Even Vygotskian ideas like the ZPD (zone of proximal development) limits the social model to teacher to student or peer to peer interactions.  Connectivism provides an adequate social model as a wide network.  This is a true social model that shows how learning is expanded by expanding one’s network.