The call for submissions for ETC 22 is currently open and will close on Monday, 16 February 2026 

Types of Sessions

To promote communication and future cooperation and collaboration, the following different types of working sessions are planned:

• Paper Sessions: In these sessions, short presentations of papers are given and then discussed by the participants. Papers are not grouped by the related subthemes but by other aspects they have in common (e.g., similar frameworks, similar focus on a mathematical topic, similar focus on age group of the students). The number of parallel sessions will be determined by the number of submitted papers.
• ST Sessions: In these sessions, participants meet in their subtheme group. Participants report from the Paper Sessions they attended in order to inform all participants about possible interesting connections to papers from other subthemes as we expect that the subthemes are not separable. Furthermore, ST groups decide on themes and modes for deeper discussions, reflections on already established research as well as future directions, cooperations, and collaborations.
• A ‘data session’. The purpose of this session is to have parallel analyses of a set/sets of data using different theoretical lenses and/or methods.

There will also be a Poster session that will include a “Museum walk”; the latter will allow for the presentation and discussion of concrete classroom materials (e.g., representations, tasks, digital formats).

Furthermore, there will be two plenaries by invited keynote speakers and a commentary panel to formulate questions and interesting topics drawn from the working sessions with a view to moving the field forward.

Submission Formats

The conference will be in English. The conference invites three types of submissions, namely papers, posters, and design posters. Papers and posters must deal with one or more of the subthemes of the conference, but one subtheme must be identified when submitting (ST1, ST2 or ST3).

• Papers: Paper proposals will consist of a full paper and a maximum of 8-pages (please use the CERME Paper and Poster Template). They may report on research results, research in progress, theoretical developments, and/or are discussion papers.
• Posters: Poster proposals will consist of 2 pages. They may report on research results, research in progress, or theoretical developments (please use the CERME Paper and Poster Template).
• Design posters: Design posters will present design principles and show examples of learning materials. A design poster proposal may be submitted in the form of a brief abstract (max. 500 words) outlining the mathematical topic, language context and design principles that will be presented.

Submitting your Contribution

A person can only be first author for one submission, except for design posters. We strongly encourage the submission of a design poster together with a paper/regular poster. Each submission will be peer-reviewed by two people from among those who submit proposals. The IPC will make the final decision about acceptance according to: a) the originality and quality of the work, b) the potential to contribute to the conference topic, and c) the fit to a subtheme.

The file must be named as ETC_FIRST AUTHOR_ST NUMBER e.g. ETC_Ingram_ST1.docx

Please submit contributions to our online form by the deadline of Monday, 16th February 2026. If your contribution is selected you will be required to register for the conference by 30 June 2026.