This study investigates the relationship between teachers' perceptions of the implementation of constructivist teaching-learning activities and of constructivist curriculum change. Data were collected from 236 primary school teachers through a questionnaire measuring the perceptions of constructivist curriculum change and of the implementation of constructivist teaching-learning activities. The questionnaire was developed by the researchers based on the related literature. It was subjected to expert review for content validity, and its reliability was established through a pilot study. The data were analyzed through bivariate correlations and linear regression analyses. Results indicated that teachers' perceptions of the implementation of constructivist teaching-learning activities are positively correlated with and predicted by their perceptions of constructivist curriculum change.