Daftar Isi:1. Introduction 2. Using Video Analysis to Explain How Virtual Manipulative App Alignment Affect Children s Mathematics Learning 3. Applying the Modification of Attributes. Affordances Abilities and Distance for Learning Framework to a Child s Multi-touch Interactions with an Idealized Number Line 4. Using One-to-One Mobile Technology to Support Student Discourse 5. Duo of Digital qand material Artefacts Dedicated to the Learning of Geometry a Primary School 6. Using Cluster Analysis to Enhance Student Learning When Using Geometry Mathematics Apps 7. How Children Using Counting Strategies Represent Quantities on the Virtual and Physical Twenty Frame 8. Resaphing the Learning Experience Through Apps Affordances 9. Empirical Evidence for benefit Reviewing Quantitative Rrsearch on the Use of Digital Tools in Mathematics Education 10. Digital Tools in Lower Secondary School Mathematics Education A Review of Qualitative Research on Mathematics Learning of Lower Secondary School Students 11. Classical and Digital Technologies for the Pythagorean theorem 12. Communication When learning and Teaching mathematics with Technology 13. Online Automated Assessment and Student Learning The PEPITE Project in Elementary Algebra 14. Using Dynamic CAS and Geometry to Enhance Digital Assessments 15. Design of Digital Resources for Promoting Creative Mathematical Thinking 16. Drawing in Space Doing Mathematics with 3D Pens 17. Diagram and Tool Use making a Circle with WiiGraph 18. A Linguistic Approach to Written Solution in CAS-Allowed Exams 19. Technological Supports for mathematical Thinking and Learning Co-action and Designing to Democatize Access to Powerfull Ideas 20. Recursive Exploration Space for Concepts in Linear Algebra 22. Instrumental Genesis and Proof Understanding the Use of Computer Algebra System in Proofs in Textbook 23. In Search of Standards Teaching Mathematics in a Technological Environment 24. Using Graphing Calculators to Graph Quadratics 25. Teacher Beliefs and Practice When Teaching with Tecnology A latent Profile Analysis 26. Uses of Technology in K-12 Mathematics Education Concluding Remaks