Rolf Biehler is a professor emeritus for didactics of mathematics at Paderborn University, Germany. His research encompasses probability, statistics, and data science education, with a focus on integrating digital tools into learning processes. He co-directs the “Data Science and Big Data at School” project (www.prodabi.de/en), developing curricula and professional development courses for teachers to introduce data exploration and data-based machine learning at various educational levels.