INDRUM2022 Special Issue.

The International Journal of Mathematical Education in Science and Technology has published a special issue on the INDRUM2022 conference, which focused on research in university mathematics education. The conference featured numerous papers and posters on topics such as the transition to university mathematics, teaching and learning of mathematical concepts, teacher education, and student practices and assessment. The special issue includes 16 papers that provide in-depth analyses of these topics, using theoretical frameworks such as the Anthropological Theory of the Didactic and the Action, Production and Communication approach. The papers offer insights into the challenges and opportunities in university mathematics education and propose instructional strategies to enhance learning outcomes. The editorial encourages readers to explore the papers and join the INDRUM network. Additionally, the text titled "Commognition" is a chapter in the Encyclopedia of Mathematics Education, providing an overview of the concept of commognition, which refers to the cognitive processes involved in mathematical communication and collaboration. The chapter explores various aspects of commognition, including its theoretical foundations, its role in problem-solving and learning, and its implications for mathematics education. The text is part of a larger collection of proceedings from the fourth conference of the International Network for Didactic Research in University Mathematics. [Extracted from the article]