The purpose of this causal-comparative study was to gain insight into whether teaching fractions improves teachers' understanding of fractions. University master's students (n = 25) conducted tutoring on fraction magnitude in grades 3-5. The contrast condition, 17 master's students drawn from the same pool of research assistant applicants,…

In this study, we decomposed the broad practice of deciphering multiple solution strategies. We conducted interviews with 11 preservice elementary teachers, in which we asked teachers to decipher students' standard and nonstandard strategies to multiplication and division problems. We examined what teachers said and did--what we refer to as…

In this study, we decomposed the broad practice of deciphering multiple solution strategies. We conducted interviews with 11 preservice elementary teachers, in which we asked teachers to decipher students' standard and nonstandard strategies to multiplication and division problems. We examined what teachers said and did--what we refer to as…

This longitudinal qualitative multicase study explored the development of 2 elementary school teachers' practical visions, or "enactment images," of differentiation. Spanning participants' final year in a teacher preparation program and first 4 years of teaching, the study traced the evolution of their practical visions of enacting…

The purpose of this longitudinal study was to investigate the relationships between mathematics teacher preparation and graduates' analyses of classroom teaching. Fifty-three graduates from an elementary teacher preparation program completed 4 video-based, analysis-of-teaching tasks in the semester before graduation and then in each of the 3…

Nationwide, K-12 students designated as English language learners (ELLs) must learn both language and content simultaneously, and ELLs score far below the national average in math achievement. Many educators have suggested that identifying or developing teachers with skills specific to ELLs' instructional needs may be critical to addressing this…

Given the current interest in organizing teacher education around core instructional practices that help preservice teachers enact ambitious aspects of teaching like leading classroom discussions, this article investigates an example from the experience of a preservice teacher as she works on orienting students to each other's ideas. Resulting…

This article describes and analyzes a program of work in elementary mathematics teacher education at the University of Michigan that has, for a decade, been a site for the development of approaches to preparing beginning K-8 mathematics teachers that are both aimed at practice and centered in content. Among the products of this work are video…