DRK-12 Research and Products
Publication | The high-performance liquid chromatography (HPLC) experiment, most often done in the undergraduate analytical instrumentation laboratory course, generally illustrates reversed-phase chromatography using a commercial C18 silica column. To avoid…
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 | 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 | 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…
Presentation | Measurement is a critical component of mathematics education, but research on the learning and teaching of measurement is limited, especially compared to topics such as number and operations. To contribute to the establishment of a research…
Presentation | View a recording of the entire webinar presentation, here: http://edc.adobeconnect.com/p4tqfgcvvp1/ The webinar is designed to introduce awardees to the ins and outs of project management. This session is adapted from the in-person meeting held…
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…