Rubric-based observations of pre- and inservice teachers are common practice in schools. Popular observation tools often result in minimal variation in ratings between teachers, require extensive training and time demands for raters, and provide minimal feedback for professional development. Alternatively, direct observation methods are evidenced…

A growing body of research suggests that the effects of core mathematics instruction on student mathematics outcomes may not be uniform across different skill levels in mathematics. This study investigated the extent to which observed components of explicit mathematics instruction explained why students' initial mathematics achievement was…