This study addresses gaps in the research about the effect of professional development (PD) quality on effective instruction by taking a broad perspective when defining professional learning of teachers and by providing a theory-based explanation for effective instruction. Using a large-scale data set, Teaching and Learning International Survey…

Much research has been done and reform is suggested relating to teachers' implementation of student-oriented learning environments, yet research on the role, beliefs, pedagogy, and knowledge of teachers simultaneously in classroom environments has been minimal (Kyle, 1994, "Journal of Research in Science Teaching", 31, 785-786). This…

This paper attempts to identify the distinctive qualities of successful veteran teachers, referred to as "expert teachers", which separates them not only from novice teachers but more importantly from experienced non-expert teachers. Based on earlier case studies, this paper maintains that the critical differences between expert and…