On January 14 2020, I presented our work on "Productive pedagogical discourse for teacher learning in professional learning communities" in a keynote talk at the I Congreso Internacional de Argumentación, Aprendizaje y Educación, at the Universidad Alberto Hurtado in Santiago de Chile. The 2-day conference was organized by Prof. Antonia Larrain, and included presentations on argumentation, diaogue and learning from Brasil, Argentina, Colombia, Chile, the UK and Israel.