Abstract
An empirical study was conducted with the aim to develop teachers’ confidence and
proficiency with teaching mathematics through inquiry. The study followed 41 primary
teachers and compared a regular mathematics lesson to a lesson taught using an inquiry
approach; 19 of these teachers were also followed over three years. Lessons were coded on
the extent of intellectual quality in the lesson across six dimensions. Higher order thinking
showed the most gains over time. Implications for research and practice are given.