The ATCM 2013 is an international conference to be held in Mumbai, India, that will continue addressing technology-based issues in all Mathematical Sciences. Thanks to advanced technological tools such as computer algebra systems (CAS), interactive and dynamic geometry, and hand-held devices, the effectiveness of our teaching and learning, and the horizon of our research in mathematics and its applications continue to grow rapidly. The aim of this conference is to provide a forum for educators, researchers, teachers and experts in exchanging information regarding enhancing technology to enrich mathematics learning, teaching and research at all levels. English is the official language of the conference. The participants of ATCM will also have the opportunity to participate in TIME conference. The TIME conferences are national (Indian) conferences held every two years . TIME conferences serve a dual role: as a forum in which mathematics educators and teachers will come together to discuss and to probe major issues associated with the integration of technology in mathematics teaching and learning, and as a place where they can share their perspectives, personal experiences, and innovative teaching practices”. ATCM averagely attracts 300 participants representing over 30 countries around the world. Be sure to submit your abstracts or full papers in time.