Networking
Cooperation in commissions
- Representative of the GDM in the Mathematik-Commission Transition school-university (2011-2020) (http://www.mathematik-schule-hochschule.de)
- Member of the INDRUM Network Scientific Committee (INSC) since 2018 (https://hal.archives-ouvertes.fr/INDRUM)
Memberships
Gesellschaft für Didaktik der Mathematik (GDM), Deutsche Mathematiker-Vereinigung (DMV), International Association for Statistical Education (IASE), International Research Forum on Statistical Reasoning, Thinking, and Literacy (SRTL), Verein zur Förderung des schulischen Stochastikunterrichts e.V. (SiS), AK Stochastik in der Schule der GDM, National Council of Teachers of Mathematics (NCTM)
Editorial work for scientific journals
| International Journal of Research in Undergraduate Mathematics Education (IJRUME) | Member of the Editorial Board since 2015 | IJRUME at SpringerLink |
| Stochastik in der Schule (SiS) | Member of the Editorial Board, 1st Chairman of the Association for the Promotion of the Teaching of Stochastics in Schools | Info |
| Statistics Education Research Journal (SERJ) | Member of the Advisory Board | Info |
| Recherches en Didactique des Mathématiques (RDM) | Member of the Comité scientifique | Info |
| Journal für Mathematik-Didaktik (JMD) | Member of the Advisory Committee from 2015 to 2017, Managing Editor from 2010 to 2014, Member in the Editorial team from 2007 to 2014 | |
| Educational Studies in Mathematics (ESM) | Member of the Editorial Board von 2000 bis 2013 | Info |
| Mathematics Education Research Journal (MERJ) | Member of the Editorial Board bis 2010 | MERJ at SpringerLink |
Organization of conferences, workshops (selection)
| Data Science goes to school | Organizer of theSymposium „Perspectives for data science education at school level – Educational contributions from statistics, computer science and sociocultural studies“ together with Carsten Schulte, Daniel Frischemeier, Susanne Podworny, Thomas Wassong, Lea Budde and Birte Heinemann | University of Paderborn, 13. – 15.11.2017 | Info |
| Statistical Reasoning, Thinking and Literacy | Local Organizer of the Ninth International Research Forum on Statistical Reasoning, Thinking, and Literacy (SRTL 9), together with Daniel Frischemeier and Susanne Podworny | University of Paderborn, 26.07.-01.08.2015 | Info |
| Technology in statistics education | Topic Convenor for Topic 9, International Conference on Statistics Education (ICoTS 9), together with Dani-Ben-Zvi (Israel) and Will Probert (Australia) | Flagstaff (USA), 13.7.-18.7.2014 | Info |
| Opportunities and pitfalls of e-learning, virtual learning environments and open education resources | Invited Paper Session 50: 58th Congress of the International Statistical Institute (ISI) - Organization together with Abbas Bazargan (Iran) | Dublin, 21. - 26. 8. 2011 | Info |
| Stochastic Thinking | Working Group 5: Fifth Congress of the European Society for Research in Mathematics Education (CERME 7) - Co-organizer | Universität Rzeszów (Polen), 9.-13.2. 2011 | |
| The impact of technology on learning to teach statistics | Session 3C: 8th International Conference on Teaching Statistics (ICoTS 8) | Ljubljana, Slovenia, 11. - 16. Juli 2010 | Info |
| DAGStat 2010 | Statistik unter einem Dach (Statistics under one roof) - 2nd joint meeting of the Working Group Statistics - Member of the Program Committee | Universität Dortmund, 23.3.-26.3. 2010 | Info |
Mathematische Brückenkurse | Interface activity at the DMV-GDM annual meeting 2010 | München, 8.3.-12.3. 2010 | Info |
| Studien zum Einsatz von eLearning für das Lernen von Mathematik | Sektion: GDM-Annual Meeting 2009 at the Oldenburg University | 2.3. - 6.3. 2009 | Proceedings |
| Research and development in the teaching and learning of statistics | Topic Study Group 14: 11th International Congress on Mathematical Education (ICME 11) - Co-organizer with Mike Shaughnessy (USA) | Monterrey (Mexiko), 6.-13.7. 2008 | Info and call papers |
| E-learning in der Lehrerbildung | Moderierte Sektion auf der 42. Jahrestagung der Gesellschaft für Didaktik der Mathematik | Budapest, 13. -18.3.2008 | Info |
| Research on the use of simulation in teaching statistics and probability | Invited Paper Meeting at the 56th Session of the International Stataitical Institute (ISI) | Lisboa, 22.8. - 29.8.2007 | Proceedings |
| Tag der Stochastik in der Schule (Day of Stochastics at school) | Event in the context of the DAGStat conference | 29.3.2007 | Programm, download materials |
| Ausbildung in Statistik (Statistics training) | Section at the conference Statistik unter einem Dach (DAGStat-conference) - Organization together with Udo Kamps | Universität Bielefeld, 27. - 30.3. 2007 | |
| Daten, Funktionen und Modelle: Vernetzung von Leitideen des Mathematikunterrichts (Data, functions, and models: interconnection of guiding ideas of mathematics education) | Minisymposium at the joint annual meeting of the DMV and GSM - Organization together with Joachim Engel | Berlin, 25.3.- 30.3.2007 | |
| Stochastic Thinking | Working Group 5: Fifth Congress of the European Society for Research in Mathematics Education (CERME 5) | Lanarka, Cyprus, 22. - 26. 2. 2007 | |
| General purpose statistical tools for students | Sektion: 7th International conference on Teaching Statistics (ICoTS 7) | Salvador, Bahia, Brazil, 2.-7. Juli 2006 | Proceedings |
| The Use of Technology in Mathematics Education (Computers, Calculators, IT Media) | Working Group 11: International Congress on Teaching Mathematics (ICME 9) - Organization together with Barry Kissane (Australien) | Japan, July 31 to August 6, 2000 | Info and papers |