The Mathematics Teacher in the Digital Era

1: Introduction.- 2: Designing Professional Development for Teaching Mathematics With Technology: A Multi-Level Approach to Foster Teacher and Facilitator Noticing.- 3: Using Instrumental Orchestration Model for Planning and Teaching Technology-Based Mathematical Tasks as Part of a Restructured Practicum Course.- 4: An Ensemble Approach to Studying the Teaching of Multiplication Using Touchtimes.- 5: Using First- and Second-Order Models to Characterise In-Service Teachers' Video-Aided Reflection on Teaching and Learning with 3D Pens.- 6: Opportunities and Challenges that Silent Video Tasks Bring to the Mathematics Classroom.- Teaching Linear Equations with Technology: A Flipped Perspective.- 7: Tensions and Proximities in teaching and learning activities: Case study of a teacher's implementation of tablet-based lesson.- 8: Digital Resources in Kindergarten Teachers' Documents and Resource Systems: A Case Study in France.- 9: Analysis of Primary School Teachers' Roles in the Dynamicsof Mathematics Lessons that Integrate Technology Resources in Challenging Socio-Economic Contexts.- 10: Characterising Features of Secondary Teachers' Curriculum Scripts for Geometric Similarity with Dynamic Mathematical Technology.- 11: Instrumental Orchestration of the use of Programming Technology for Authentic Mathematics Investigation Projects.- 12: Researching Professional Trajectories Regarding the Integration of Digital Technologies: The Case of Vera, A Novice Mathematics Teacher.- 13:The Abrupt Transition to Online Mathematics Teaching due to the Covid-19 Pandemic: Listening to Latin American Teachers' Voices.- 14: Meta-Didactical Transposition 2: The Evolution of a Framework to Analyse Teachers' Collaborative Work with Researchers in Technological Settings.- 15:Revisiting Theories that Frame Research on Teaching Mathematics with Digital Technology.