The TeLearn Open Archive has reached the significant milestone of the 500th research paper being uploaded. And even more: this document is the famous John Self essay on "Computational mathetics: toward a science of learning system design". We are proud to welcome John to TeLearn and to make this important text available to all now in a sustainable way.
John Self is one of the founders of the Artificial Intelligence and Education Society , and an active supporter of open access with the creation of the International Journal of Artificial Intelligence and Education the archive of which is open and free to the community (on a short embargo model). We wish you all to enjoy the reading and beyond that to join the movement and share with all your scientific production by uploading your work to the TeLearn Open Archive. En route for the 1000!