He has extensive teaching experience while his research interests predominantly relate to using digital technologies in mathematics education. His present and recent research projects are: The influence of apps on primary-school mathematics teaching and learning; The influence of mobile technologies on the engagement of 16-18 year-old reluctant learners; Connecting science and mathematics through exploratory talk and inquiry; and How mathematical thinking emerges through student-centred inquiry learning in secondary schools. He wrote the book: Processing Mathematics through Digital Technologies: The Primary Years and co-edited MERJ and T&C special issues, and a Springer Book, on learning through mobile technologies.