Mathematics teaching is subject to cultural and temporal conditions. Not only do school and societal conditions shift, and with them the composition of the student body, but also curricular regulations and new mathematical and pedagogical insights determine the content to be taught and the approach to learning used in mathematics classes. To reflect on mathematics teaching in a changing world, there is a need for continuous scientific research into this process of teaching mathematics. Results of this research also have a retrospective impact on mathematics teacher education insofar as the conditions of education need to be continuously adapted to the professional requirements of teachers in practice. Research on teaching mathematics thus bears a great responsibility and is a constantly evolving field of research for scholars around the globe.
This book comes at the time when the world is facing an ongoing global pandemic and experiencing violence and unrest due to active war. This publication symbolizes a professional commitment and international collaboration par excellence apropos teaching mathematics. The editors from three different continents and researchers who represent sixteen institutions and eight countries worked constructively and collaboratively with utmost respect for each other, with intentions to reflect on existing research knowledge and to create new knowledge that can be shared and used by other educators and researchers across the world.