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Teacher quality has been found to offset the adverse effect of racial and socioeconomic differences in academic achievement; and teacher quality is often thought to be the product of a quality education. However, existing literature has produced mixed results regarding the relationship between student achievement and teachers' possession of advanced degrees (ADs). Despite these mixed results, ADs are often the most efficient (if not the only) way for teachers to earn certification and salary upgrades. A longitudinal, multiphase mixed-methods explanatory study aimed to bridge shortcomings of existing research on the effects of teachers obtaining ADs. Associations between teacher credentials and middle grades students' academic growth were examined by differentiating teachers' degree level (bachelor's, master's, specialist's) and field (content-related, non-content-related). Teachers and school leaders were also interviewed in order to broaden our understandings of the impact ADs make in areas besides student achievement. Findings suggest that inconsistency in associations between teacher ADs and student achievement may be attributable to variation in a number of individual, programmatic, and institutional factors.

Current views of literacy have expanded to encompass how individuals in sociocultural systems make meaning as they "read" and "write" their world. From this view, the work of students involved in pursuing deeper understandings as they discuss course concepts is a literacy act. This study focused on the inquiry and questioning moves of graduate students as they participated in nine online classroom discussions about course concepts. A coding scheme adapted from several researchers interested in inquiry and knowledge co-construction was applied to the students' comments posted in synchronous online discussion. Findings indicated that students used various inquiry moves to engage actively with course ideas, with some moves more popular than others, and with some students using a wider variety of moves than others. Although the most common moves were of those reacting to others' comments with an interpretation, supporting evidence, or more thoroughly explaining a previously shared idea, threads often developed into more sophisticated inquiry exchanges through "inferences" and "critical evaluations." Implications are offered for the use of an inquiry lens on the contributions of students involved in online classroom discussion as a way to highlight students' active, meaningful knowledge construction.