%O This version is the version of record. For information on re-use, please refer to the publisher's terms and conditions. %A A Clark-Wilson %A G Aldon %A I Kohanová %A O Robutti %L discovery10115601 %I Freudenthal Group & Freudenthal Institute, Utrecht University and ERME %E UT Jankwist %E M van den Heuvel-Panhuizen %E M Veldhuis %T Introduction to the papers of Thematic Working Group 15: Teaching mathematics with resources and technology %B Proceedings of the Eleventh Congress of the European Society for Research in Mathematics Education %C Utrecht, the Netherlands %D 2019 %P 2653-2660 %V 11