Dani Ben-Zvi is an associate professor at the University of Haifa in the Faculty of Education, member of the Technology in Education Graduate Department, and member of the Mathematics Education Graduate Department. He is also the co-founder of the International Collaboration for Research on Statistical Reasoning, Thinking and Literacy, and co-chairs it with his co-editor, Katie Makar. His research interests include statistical reasoning and technology enhanced learning. He received his Ph.D. from the Weizmann Institute of Science in 2001 at the Department of Science Teaching. Dr Katie Makar is a senior lecturer in mathematics education at the University of Queensland. Her research looks at teaching of mathematics through inquiry. She is also known internationally for her work on statistical reasoning and informal statistical inference at the primary school level. She has done consulting work on teaching with inquiry, reasoning in chance and data, teacher professional standards and middle years curriculum. Her teaching includes courses in mathematics education, interdisciplinary curriculum, teacher professionalism, and statistics. Previously, she taught secondary mathematics for fifteen years in the US and Asia before finishing her PhD in 2004.