Every teacher seeks to be an "effective" teacher. Every teacher wants to have a positive, remarkable, and lasting influence on students' lives. But what makes for an effective teacher? What role does teacher preparation play in teacher effectiveness? What do effective teachers do during planning, instruction, and assessment? How do they…

Teacher quality is widely recognized as influencing student achievement and success in school. In this article, we consider various approaches to the assessment of teacher quality, including process-product observational measures, evaluation checklists, professional standards, large-scale surveys, and commercially available observation systems. We…