Tuesday, 05.05.2026, 4 p.m. c.t., conference room, building C1, first floor, room CI 1

Prof. Dr. Lander Kempen, University of Greifswald

Advanced training in stochastics at upper secondary level - experiences from the QuaMath project

As part of the QuaMath project, a training series on stochastics in upper secondary level was developed. It comprises three modules, each lasting three hours, on the topics of "conditional probabilities", "binomial distribution" and "prediction intervals". Between the individual modules, practical phases are planned in which the participating teachers try out the content of the previous module in the classroom and then reflect on it. The content of the training is shaped by the overarching framework of the QuaMath project. This is based on five selected characteristics of quality mathematics teaching and five so-called "teacher jobs", which focus on central aspects of professional teacher action.

The lecture will present central considerations for the development of the training series. In addition, initial findings and experiences from working with multipliers will be presented and put up for discussion.

Tuesday, 02.06.2026, 4 p.m. c.t., conference room, building C1, first floor, room CI 1

Timo Flückiger, University of Kassel, Didactics of Mathematics, focus on primary education

Profiles of flexibly calculating primary school pupils

The development and promotion of flexible calculation are central goals of mathematics teaching in elementary school. It is therefore important for teaching practice to be able to draw conclusions about whether and how flexibly primary school pupils calculate. For flexible calculation, it is crucial that students use adequate solution tools based on the recognized characteristics and relationships of numbers and tasks. However, this has not been investigated in the existing studies that have identified profiles of flexible calculators. My study addresses this desideratum, among others. A semi-standardized, guideline-based interview and a coding manual were designed to record flexible computing. The interviews were coded using qualitative content analysis. With the help of cluster analyses, different profiles of flexible calculators were determined, which differ, among other things, in terms of the adequacy of the solution tools used to the named characteristics and relationships of numbers and tasks. The results will be presented and discussed in the lecture.

Tuesday, 07.07.2026, 4 p.m. c.t., conference room, building C1, first floor, room CI 1

Prof. Dr. Katja Lenz, PH Schwäbisch Gmünd

Textbook research in mathematics didactics - overarching perspectives and an exemplary look at learning opportunities in early mathematics education

Textbooks are a central resource in mathematics teaching and significantly shape the learning opportunities that are made available to pupils. The lecture takes this as an opportunity to first outline overarching perspectives of textbook research in mathematics didactics. A study on learning opportunities in early mathematics lessons will then be presented. The focus is on the question of which learning opportunities textbooks for the first grade provide for the development of the parts-whole concept. This is based on a qualitative type-forming content analysis of twelve textbooks. The results show different patterns of how the parts-whole concept is addressed and structured in textbooks and illustrate how textbook analyses can reveal differences in the learning opportunities offered and the associated potential learning processes.