Researchers have approached to teacher change in different ways: as a learner, as a teacher, and as a colleague. This study aims to analyze teachers' pedagogical changes within the professionally collaborated training program supported with on-the-job visits in their teaching environments. Five elementary mathematics teachers were involved in the study which was organized as a longitudinal professional program aiming at teachers' classroom practices. By analyzing teaching practices and interviews through Reformed Teaching Observation Protocol (RTOP), the results show that teachers had various characteristics in terms of enacting their pedagogical goals. The study concludes that sample classroom implementations and pedagogical discussions have impact on teachers' beliefs about putting pedagogical goals into practice.