Proceedings of the 14th International Conference on Technology in Mathematics Teaching – ICTMT 14 : Essen, Germany, 22nd to 25th of July 2019
General Information
The 14th International Conference on Technology in Mathematics Teaching – ICTMT 14 – was organized by the University of DuisburgEssen. It was held in Essen, Germany, from the 22nd to 25th of July 2019.
This biennial conference is the fourteenth of a series which began in Birmingham, UK, in 1993, under the influential enterprise of Bert Waits from Ohio State University. The previous conference was held in Lyon, France, in 2017.
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 knowhow, innovation and perspectives on educational technologies and their impact on the teaching and learning of mathematics.
Content

Ruchniewicz, Hana; Göbel, Lisa; Pohl, Maximilian:
Developing visions – a summary of ideas from ICTMT 14 participants on future developments regarding the use of technology in mathematics educationp. 5 
Heeren, Bastiaan; Jeuring, Johan:
Automated feedback for mathematical learning environmentsp. 17 
Yerushalmy, Michal:
Seeing the entire picture (STEP): an exampleeliciting approach to online formative assessmentp. 26 
BiknerAhsbahs, Angelika:
Networking of theories reconsideredp. 59 
Brnic, Maxim; Greefrath, Gilbert:
Learning mathematics with a digital textbook and its integrated digital tools: the KomNetMath projectp. 73 
Costa, Maria Christina; Domingos, António:
An augmented reality application to engage students in STEM educationp. 75 
Dilling, Frederik; Witzke, Ingo:
Comparing Digital and Classical Approaches  The Case of Tessellation in Primary Schoolp. 83 
Kock, ZegerJan; Brunetto, Domenico; Pepin, Birgit:
Students’ choice and perceived importance of resources in firstyear university calculus and linear algebrap. 91 
Mavrikis, Manolis; Geraniou, Eirini; Blake, Canan:
Empowering teachers to engage students in mathematical learning through digital competence scenariosp. 99 
Platz, Melanie; Schlicht, Simeon:
Enhancing childrens' argumentation skills in primary schools using digital learning tools: interpretative analysis of a first draft learning environmentp. 101 
p. 109

Schallert, Stefanie; Lavicza, Zsolt:
Implementing augmented reality in flipped mathematic classrooms to enable inquirybased learningp. 117 
Schirmer, Evelyn; Altieri, Mike:
Using interactive H5Pvideos to reduce students' errors caused by misconceptionsp. 125 
Shvarts, Anna; Rosa, Alberto; Bakker, Arthur; Doorman, Michiel; Drijvers, Paul:
Embodied instrumentation: reificaton of sensorimotor activity into a mathematical artifactp. 127 
Tomaschko, Melanie; Hohenwarter, Markus:
Usability improvement of a mobile graphing calculator applicationp. 129 
Trappmair, Andreas; Hohenwarter, Markus:
Driving augmented reality: GeoGebra's new AR features in teaching mathematicsp. 136 
Zöchbauer, Johanna; Hohenwarter, Markus:
Developing a live session feature for GeoGebra for teaching and learning mathematicsp. 144 
Abdu, Rotem; Olsher, Shai; Yerushalmy, Michal:
Towards automated grouping: unraveling mathematics teachers’ considerationsp. 147 
Albano, Giovannina; Pierri, Anna; Sabena, Cristina:
Enhancing formative assessment practices in undergraduate courses by means of online workshopsp. 155 
Borde Vries, Marieke; Drijvers, Paul; Boon, Peter; Tacoma, Sietske; Heeren, Bastiaan; Jeuring, Johan; Steenbergen, Niels; Sosnovsky, Sergey; van Zon, Wink; Koops, Jesse; Weinberger, Armin; Kolling, Allison; GrugeonAllys, Brigitte; ChenevototQuentin, Françoise; Toussaint, BenManson:
Student models to generate automated feedback on intermediate steps in solving mathematical problemsp. 163 
Elkjær, Morten; Hansen, Christian:
Clustering student errorsp. 165 
Fahlgren, Maria; Brunström, Mats:
Orchestrating wholeclass discussions in mathematics using connected classroom technologyp. 173 
Harel, Raz; Olsher, Shai; Yerushalmy, Michal:
Designing online formative assessment that promotes students' reasoning processesp. 181 
Kristinsdóttir, Bjarnheiður (Bea); Hreinsdóttir, Freyja; Lavicza, Zsolt:
Using silent video tasks for formative assessmentp. 189 
Lepellere, Maria Antonietta; Urbinati, Stefano; Salahi Al Asbahi, Nizar:
The use of quizzes on moodle for teaching differential equations to engineering studentsp. 197 
NagariHaddif, Galit:
Constrained sketching on a grid: a lens for online assessment of derivative sketchingp. 205 
Olsher, Shai; Abu Raya, Kholod:
Teacher's attention to characteristics of parabola sketches: differences between use of manual and automated analysisp. 213 
Pinkernell, Guido; Gulden, Lukas; Kalz, Marco:
Automated feedback at task level: error analysis or worked out examples – which type is more effective?p. 221 
Salles, Franck; Dos Santos, Reinaldo; Keskpaik, Saskia:
When didactics meets data sciencep. 229 
Andrà, Chiara; Brunetto, Domenico; Parolini, Nicola; Verani, Marco:
Teenimmigrants explore a math mobile appp. 237 
Berens , Florian; Hobert, Sebastian:
Interactive learning on demand: a chatbased app for statistics educationp. 245 
Bernardi, Giulia; Brunetto, Domenico:
Using a mathematical forum in a graduate course: The nature of Rick's and John’s participationp. 247 
Bozkurt, Gülay; Yigit Koyunkaya, Melike:
Preparing prospective mathematics teachers to design and teach technologybased lessonsp. 255 
Costa, Maria Cristina; Domingos, António:
Technology as a resource to promote mathematics teachingp. 263 
Cusi, Annalisa; Telloni, Agnese Ilaria:
Students’ use of digital scaffolding at University level: emergence of utilization schemesp. 271 
DonevskaTodorova, Ana; Eilerts, Katja:
Designing and disseminating review criteria for quality of tablet apps in primary school mathematicsp. 279 
Ebers, Patrick:
Development of video cases regarding technology use for professional development programsp. 287 
Faggiano, Eleonora:
Aligning embodied and instrumental experiences to foster mathematics teaching and learningp. 289 
Højsted, Ingi Heinesen:
A quantitative study on the usage of dynamic geometry environments in Danish lower secondary schoolp. 297 
p. 305

Müller, Matthias:
Bilingual math lessons with digital tools: challenges can be door opener to language and technologyp. 312 
Pittalis, Marios; Christou, Constantinos; PittaPantazi, Demetra; Demosthenous, Eleni; Perikli, Maria:
A framework describing students' mathematics learning experience with a tabletbased pedagogical medium: the case of a geometry explorationp. 320 
RoanesLozano, Eugenio; FernándezSalinero, Carolina:
Evaluating CAS and DGS at the maths classroom: a proposal for an unbiassed experimental study about the impact of the computational role of the students in their learningp. 328 
Thomsen, Marianne:
Reasoning competency and the link between geogebra and original mathematics sourcesp. 338 
p. 340

Agbaria, Nareman Amal; Swidan, Osama; BenZvi Assraf, Orit:
Making sense of biological phenomena through inquiry of mathematical representation and interactive technological toolsp. 349 
Bach, Cecilie Carlsen:
Mathematical communication competency in interplay with digital technologiesp. 358 
Bescherer, Christine; Fest, Andreas:
Mathematical discoveries using computational thinkingp. 360 
Geraniou, Eirini; Jankvist, Uffe Thomas:
“Mathematical digital competencies for teaching” from a networking of theories perspectivep. 368 
Gregersen, Rikke Maagaard:
Networking theories  competencies, mathematics education research and digital technologiesp. 376 
Schmidt, Swantje; Müller, Matthias:
Students learning with digital mathematical tools – three levels of instrumental genesisp. 378 
Borkulo, Sylvia Patricia van; Kallia, Maria; Drijvers, Paul; Barendsen, Erik; Tolboom, Jos:
Computational thinking and mathematical thinking: digital literacy in mathematics curriculap. 384
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Proceedings of the 14th International Conference on Technology in Mathematics Teaching – ICTMT 14. Essen, Germany, 22nd to 25th of July 2019. 2020.
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