2011 IEEE 11th international conference on advanced learning technologies : (ICALT 2011) : Athens, Georgia, USA : 6-8 July 2011 : learning technologies for the developing world (LT4D) -- issues, constraints and solutions workshop : self-regulated learning in responsive open learning environments workshop : social network and augmented/virtual reality technologies enhanced learning workshop : exploring the future of technology enhanced education: visions, practical implementations and impact of localities (DULP@ICALT2011) workshop : ICALT main conference : Jul 2011, Athens, GA.