In the transition to middle school, and during the middle school years, students' motivation for mathematics tends to decline from what it was during elementary school. Formative assessment strategies in mathematics can help support motivation by building confidence for challenging tasks. In this study, the authors developed and piloted a professional development program, Learning to Use Formative Assessment in Mathematics with the Assessment Work Sample Method (AWSM) to build middle school math teachers' understanding of the characteristics of high‐quality formative assessment processes and increases their ability to use them in their classrooms. AWSM proved to be feasible to implement in the middle school setting. It improved teachers' practice of formative assessment, especially in their feedback practices, regardless of their pedagogical content knowledge at entry. Results from focus groups suggested that teachers were better able to implement ungraded practice and student self‐ and peer‐assessment after AWSM, and that students were more willing to engage in complex problem solving.

In the National Science Foundation funded NanoTeach development project, high school teachers participated in a year-long professional development experience where they learned about emerging nanoscale science and technology (NS&T) content and research-based instructional strategies to support effective classroom lesson design and implementation. Program participants from four states were assigned either to the fully facilitated model or to the team study approach. Case studies were prepared for four participants from the Louisiana site, two from the fully facilitated NanoTeach model group and two from the team study NanoTeach group. Data for the case studies included in this article include qualitative and quantitative data regarding the changes in teachers' NS&T knowledge and their ability to teach the content using the effective strategies included in the professional development sessions and resource materials. The case studies provide new insights into the ways teachers' integrated NS&T in the high school curriculum.

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