Design of Learning Environments and Curricula -- to Section 1 -- Designing Software for Mathematical Engagement through Modeling -- Designing Digital Technologies and Learning Activities for Different Geometries -- Implementing Digital Technologies at a National Scale -- Learning and Assessing Mathematics with and through Digital Technologies -- to Section 2 -- Integrating Technology into Mathematics Education: Theoretical Perspectives -- Mathematical Knowledge and Practices Resulting from Access to Digital Technologies -- The Influence and Shaping of Digital Technologies on the Learning - and Learning Trajectories - of Mathematical Concepts -- Micro-Level Automatic Assessment Supported by Digital Technologies -- Technology, Communication, and Collaboration: Re-thinking Communities of Inquiry, Learning and Practice -- Teachers and technology -- to Section 3 -- Working with Teachers: Context and Culture -- Teachers and Teaching: Theoretical Perspectives and Issues Concerning Classroom Implementation -- Teacher Education Courses in Mathematics and Technology: Analyzing Views and Options -- Implementation of Curricula: Issues of Access and Equity -- to Section 4 -- Some Regional Developments in Access and Implementation of Digital Technologies and ICT -- Technology for Mathematics Education: Equity, Access and Agency -- Factors Influencing Implementation of Technology-Rich Mathematics Curriculum and Practices -- Future Directions -- to Section 5 -- Design for Transformative Practices -- Connectivity and Virtual Networks for Learning -- The Future of Teaching and Learning Mathematics with Digital Technologies.