Abstract
A survey ascertained teachers' knowledge about and use of hand-held calculators in
primary mathematics classes. This paper focuses on 341 teachers' experiences of
Professional Development(PD) on the use of calculators in teaching mathematics. Only
nine had experienced such a workshop in the past two years while 10% had during their
career. Approximately 40% regarded themselves as poorly prepared for calculator use in
their teaching. A face-to-face hands-on PD session conducted by an 'expert' was the
teachers' choice to develop their calculator pedagogy.