Localization Effect in a 2D Superconducting Network without Disorder

The superconducting properties of a two-dimensional superconducting wire network with a new geometry have been measured as a function of the external magnetic field. The extreme localization effect recently predicted for this periodic lattice is revealed as a suppression of the critical current when the applied magnetic field corresponds to half a flux quantum per unit cell. For this particular magnetic field, the observed vortex state configuration is highly disordered.Comment: 6 pages, 2 eps figures, submitted to Physica C. Title change

Transforming assessment and teaching practices in science inquiry

ASSISTME (Assessing Inquiry in Science, Technology, and Mathematics Education) is an EU FP7 research project. In collaboration with 8 European countries, this fouryear (20132017) project aims to find out how to support primary and secondary teachers in the formative assessment of inquirybased learning in science, technology and mathematics. Within this context, we developed a professional development programme that aimed to support primary teachers in their teaching and assessment of science inquiry. Our research aims to investigate how teachers transform their teaching of science inquiries and the assessment conversations that they have during classroom inquiries. This paper begins to identify what kinds of professional development experiences enable this transformation to take place. Our data sources include written teacher reflections, audiorecordings of the professional development meetings and observed lessons and semistructured postlesson interviews. We draw from a multistep, opencoding analysis of selected transcripts of the audiorecordings of classroom talk made during lesson observations. We substantiate this with teacher reflections, arising from the professional development sessions, to extend our understanding of effective ways to guide teachers in transforming their teaching and assessment practices in scientific inquiry. Our preliminary analysis suggests that transforming the assessment and teaching of science inquiry requires some specific professional development opportunities. Sharing some examples of classroom inquiries that were bounded, initially, and then later open (Wenning, 2005) gave teachers the confidence to incorporate inquiry within their existing practice. This was introduced in conjunction with regular professional reading (Turner et al, 2011) and a focus on discrete inquiry skills (e.g. making predictions). Collectively, this allowed teachers to sharpen their professional understanding of classroom inquiry. The critical teacher reflections, made during professional development days, supported teachers in refining their formative practice. Their assessment conversations went beyond accepting or rejecting answers and, instead, facilitated a more open and formative discussion that encouraged children to share their ideas with others