The content of this CD is the full collection of scholarly contributions of past ATCM conferences. In addition, some of the past local chairs of ATCM hosts and respected scholars in mathematics education provide their country-specific views on technology use in mathematics and mathematics education. A preliminary inspection on the technology landscape with respect to the AOLA (Author-Once-Learn-Anywhere) framework for learning and teaching mathematics can also be found. You can also browse through the captured moments of past conferences - images of participants who came from different parts of the world to share and to learn.

We like to take this opportunity to thank all the authors and participants of past ATCM's, members of the International Program Committees, the external referees, the local chairs and their committee members, the local host universities, and the sponsors of ATCM's and this CD. Hope this commemorative CD find you safe and healthy. We need your continuous support of years to come.

Sung-Chi Chu
ATCM, Inc. & Any2Any Technologies, Ltd.