DRK-12 Research and Products

Publication | This article presents our plans and initial work to explore how mathematics teacher education programs can prepare teachers for diverse middle grades classrooms. It describes the start-up of a five-year National Science Foundation project to…
Publication | Research on how students make sense of and use the minus sign indicates that students struggle to understand the multiple meanings of the minus sign. Teachers can support students in developing robust understanding of each interpretation of the…
Publication | Problem solving is an important skill in the knowledge economy. Research indicates that the development of problem solving skills works better in the context of instructional approaches centered on real-world problems. But students need…
Publication | In this paper we focus on what happens when a task is first introduced to students as a crucial phase of instruction. We report on an empirical study of 132 middle grades mathematics teachers' instruction—in particular, the nature of the ways in…
Publication | The Science Teachers Learning from Lesson Analysis (STeLLA) project is a videobased analysis-of-practice PD program aimed at improving teacher and student learning at the upper elementary level. The PD program developed and utilized two “lenses…
Publication | Maps at four levels of scale—global, national, regional, and local—provide a context for mathematical investigations that help teachers learn about their students.
Publication | High-stakes tests take time away from valuable learning activities, narrow the focus of instruction, and imply that science involves memorizing details rather than understanding the natural world. Current tests lead precollege instructors to…
Publication | Equity in mathematics education should be one of the most important concerns of teachers, administrators, policy makers, mathematicians, and mathematics educators. In fact, the Association of Mathematics Teacher Educator (AMTE), the National…