Horacio Solar is an Associate Professor in the Faculty of Education at the Pontificia Universidad Católica de Chile. His research focuses on mathematical argumentation, modeling competencies, mathematics teacher professional development, and Mathematics Teacher Noticing. His academic career includes serving as Director of the Fondecyt-ANID Higher Education Study Group in Chile, President of the Scientific and Ethical Committee for Social Sciences, Arts, and Humanities, and Coordinator for the design of the Disciplinary Standards for Mathematics in Chile. He has also contributed to the development of the Chilean Mathematics Curriculum Framework. Additionally, he serves as an associate editor for journals in Mathematics Education.
Diana Zakaryan is an Assistant Professor at the Institute of Mathematics, Pontifical Catholic University of Valparaíso, Chile. She teaches in the Initial Mathematics Teacher Education Program, as well as in the Master’s and Doctoral Programs in Mathematics Education. Her research interests center on the mathematics teachers’ specialized knowledge and the development of noticing competence in both pre-service and in-service mathematics teachers. She has served as Director of the Doctoral Program in Mathematics Education, Editor of the Chilean Journal of Mathematics Education, and a member of the Board of Directors of the Chilean Society of Mathematics Education and the Coordinator of the Ibero-American MTSK Network of the Ibero-American University Association of Graduate Studies.
Eder Pinto is an Assistant Professor at the Institute of Education Sciences and Dean of the School of Education at the Universidad de O’Higgins, Chile. He teaches mathematics education courses in both pre-service and in-service teacher education programs. His research interests focus on early algebraic thinking and mathematics teacher noticing in teacher education contexts. He has led research and professional development projects focused on the development of mathematical thinking in children aged 6 to 12, and has participated as a co-investigator in national and international projects related to early algebraic thinking and mathematics teachers’ specialized knowledge. He is also an Associate Researcher at the Advanced Center for Education Research (CIAE) at the University of Chile and Associate Editor of PNA: Revista de Investigación en Didáctica de la Matemática.
