The 15th International Conference on Technology in Mathematics Teaching – ICTMT 15 - took place in Copenhagen 13. -16. September 2021. The conference is organised by  the Danish School of Education, Aarhus University.  

The ICTMT conference series is unique in bringing together lecturers, teachers, educators, curriculum designers, mathematics education researchers, learning technologists, and educational software designers – all who share the interest in improving the quality of teaching and learning. Through its character, the conference provides a forum for researchers and practitioners in this field to discuss and share best practices, research approaches and results, theoretical know-how, innovation and perspectives on educational technologies and their impact on the teaching and learning of mathematics.