About Mathematikus

The goal of the website mathematikus.de is to promote the ability to imagine spatial objects and processes.

The ability to imagine something spatially is essential in many areas of life. Sometimes spatial imagining is called the fourth cultural technique besides reading, writing, and arithmetic. Spatial imagination is necessary to solve many daily life problems: When you listen to a description of a route, you have to imagine how you have to go. Anyone who sees a folding instruction with single folding steps must imagine the process of folding.

The imagination of three-dimensional objects or processes is always based on verbal descriptions or two-dimensional images. The animations of the website mathematikus.de give the user just in time informative feedback: Everyone can directly see why the selected solution is right or wrong. Animated folding processes make it easier to imagine folding in reality. Last but not least, the user can observe every folding as often as necessary. Using mathematikus.de, everyone can work at their speed and try and correct mistakes.

The website mathematikus.de was originally developed using Flash. It is completely redesigned, reprogrammed, and expanded in 2020 as part of the iTEM project. Since 2020, mathematikus.de can also be used on devices with touchscreen and adapts automatically to the screen size.

Project iTEM

The website mathematikus.de is part of the project iTEM (improving Teacher Education in Mathematics), jointly carried out by scientists from the TU Liberec, the NORD University of Bodø, and the PH Schwäbisch Gmünd. Czech National Agency for International Education funds iTEM under the EEA Funds 2014 – 2021, Education Program. Through the EEA Funds, Iceland, Liechtenstein and Norway contribute to reducing economic and social disparities in the European Economic Area (EEA) and to strengthening cooperation with 15 European countries.

Project management

The iTEM project is led by

Mgr. Daniela Bimova, Ph.D. (Technická univerzita v Liberci) and
Prof. Dr. Klaus-Peter Eichler (PH Schwäbisch Gmünd & NORD Universitet Bodø)

Goals of the project

One goal of the project is to explore the students’ patterns of working with two-dimensional animations such as those offered by the website mathematikus.de and their use to develop the students’ spatial ability.

Who are the people behind Mathematikus.de?

Prof. Dr. Klaus-Peter Eichler

NORD University Bodø and PH Schwäbisch Gmünd

Responsible for the conception of the content & Articles regarding teaching and learning of mathematics

Dipl.-Inf. Doreen Eichler

Working as Media Computer Scientist

Webdesign and programming of the website / Redesign and programming of the learning modules

Dipl.-Math. Peter Eipert

Universität Rostock

Conception and programming of the learning modules

Dag O. Madsen, Ph.D.

NORD Universitet Bodø

Translation of the website into Norwegian

Daniela Bimova, Ph.D.

TU Liberec

Translation of the website into Czech

Promotion of the project

EEA Grant 2014-2021 - Iceland Liechtenstein Norway Grants, Education Programm


Technical University of Liberec
(Czech Republic)


NORD Universitet Bodø


University of Education Schwäbisch Gmünd (Germany)