I was born and raised in Melbourne, Australia.
I was educated (BSc and PhD) at Monash University, Melbourne.
I worked for many years in the Department of Mathematics, La Trobe University, Melbourne.
As a result of my work in mathematics education, I went to the School of Education at the University of Southampton, UK, where I was Professor and Director of the Centre for Mathematics Education.
I then went to Rutgers, NJ, where I was Visiting Professor in the Graduate School of Education and Senior Research Scientist in the Robert B. Davis Institute for Learning at Rutgers.
After Rutgers I went to the College of Education at Washington State University, where I was Boeing Distinguished Professor of Mathematics Education.