Baruch B. Schwarz is the Isadore and Bertha Gudelsky Chair of Early Childhood Education at the Hebrew University of Jerusalem. His research includes various domains such as mathematical abstraction, or collaborative learning, but his main interest focuses on the study of argumentation in learning contexts. He has extensively published on this topic and has co-created the Special Group Interest in Argumentation, Reasoning and Dialogue at the European Association for Research in Learning and Instruction. He has shown the crucial role of technologies in boosting collaborative learning and argumentation, and has coordinated numerous multi-national EC funded projects dedicated to computer-supported collaborative learning and argumentation.