After inspection in special schools: action planning and making progress

As a high proportion of special schools 'fail' their inspections, the DfEE commissioned researchers from the University of the West of England (UWE) to examine post-inspection improvement. Can other schools learn from the 'best practice' identified? John Dwyfor Davies, John Lee, Keith Postlethwaite, Jane Tarr and Wan Ching Yee (all of whom lecture and research at UWE) and Gary Thomas, now Chair of Education at Oxford Brookes University, report on their findings, which point strongly to the need for good target-setting and monitoring, together with strong support.     

Progress in International Reading Literacy Study 2006 (PIRLS): pedagogical correlates of fourth‐grade students in Hong Kong

Reading literacy of fourth‐grade students in Hong Kong showed a remarkable improvement from 2001 to 2006 as shown by international PIRLS studies. This study identified various aspects of the teacher factor contributing to the significant improvement among students. A total of 4,712 students and 144 teachers from 144 schools were randomly selected using probability proportional‐to‐size technique to receive the Reading Assessment Test and complete the Teacher's Questionnaire, respectively. A number of items pertaining to teachers' instructional strategies and activities, opportunities for students to read various types of materials, practices on assessment, and professional preparation and perception, were found to be significantly correlated with the outcome of students' reading literacy. Stepwise regression procedure revealed four significant predictors for students' overall reading achievement. The most powerful predictor was the use of materials from other subjects as reading resources. Suggestions to improve quality of teaching of reading and further studies are made.     

Experimental verification of Faradaic charging in ac electrokinetics

This paper investigates the phenomenon of Faradaic charging in ac electrokinetics. Faradaic reactions were suggested as a key effect responsible for the reversal of pumping direction in ac micropumps. However, this hypothesis has yet to be proven convincingly and directly. Here we present an ion detection strategy to determine the production of ions through Faradaic hydrolytic reactions originating from direct application of voltage to electrolytic solutions during ac electrokinetics. Experiments were performed with symmetrical planar electrodes aligned along a microfluidic channel. Fluorescein, a pH-dependent dye, was employed as the pH indicator for the detection of ion production. Images were captured for analysis at various voltage levels. From analyzing the fluorescence intensity and its distribution, it can be concluded that the production of ions from hydrolytic reactions takes place and increases with the ac voltage. The coefficient of deviation indicates a significant enhancement at ac voltage above 11 V_pp. Lastly, we demonstrate a strategy using dc-biased ac electrokinetics to achieve controllability in direction and magnitude of the net fluid flow in pumping application.     

Women teachers in Hong Kong: stories of changing gendered identities

In a time of mass schooling in most parts of the world, the discourse of the “woman primary teacher” is often the subject of discourse. Yet most stories of these women teachers emerge from other (Western) contexts, with little known about how changing education processes affect the gendered identities of women in other cultural settings. This paper explores how women teachers negotiate their gendered identities in Hong Kong, where modernization has already mingled with the indigenous Chinese culture. It provides the stories of four Chinese women teachers as they engage in ongoing construction and negotiations of gendered identities over their life histories in Hong Kong. All are ethnically Chinese, of different ages and at different stages of their personal and professional lives, and all have grown up in Hong Kong. A framework of post-colonial concepts of hybridity and border crossing helps to suggest how identity resources develop in relation to a range of contemporary practices which are experienced as both pressures and opportunities. These Chinese women teachers' identities are seen to be complex, fluid and multi-faceted, continually under construction in their daily lives, with changes experienced in both work and family settings.     

Direction dependence of displacement time for two-fluid electroosmotic flow

Electroosmotic flow that involves one fluid displacing another fluid is commonly encountered in various microfludic applications and experiments, for example, current monitoring technique to determine zeta potential of microchannel. There is experimentally observed anomaly in such flow, namely, the displacement time is flow direction dependent, i.e., it depends if it is a high concentration fluid displacing a low concentration fluid, or vice versa. Thus, this investigation focuses on the displacement flow of two fluids with various concentration differences. The displacement time was determined experimentally with current monitoring method. It is concluded that the time required for a high concentration solution to displace a low concentration solution is smaller than the time required for a low concentration solution to displace a high concentration solution. The percentage displacement time difference increases with increasing concentration difference and independent of the length or width of the channel and the voltage applied. Hitherto, no theoretical analysis or numerical simulation has been conducted to explain this phenomenon. A numerical model based on finite element method was developed to explain the experimental observations. Simulations showed that the velocity profile and ion distribution deviate significantly from a single fluid electroosmotic flow. The distortion of ion distribution near the electrical double layer is responsible for the displacement time difference for the two different flow directions. The trends obtained from simulations agree with the experimental findings.     

基于大学生成功学习的美国本科新生体验计划

美国新生体验计划不是一个单独的项目、活动或课程,而是新生们在本科第一年中的经验总和。新生这些体验大都来自于大学为他们设计的课程以及课外活动,最终是为了让学生们更好地适应大学学习和生活并获得成功。     

Power,Penalty, and Critical Praxis: Employing Intersectionality in Educator Practices to Achieve School Equity

Intersectionality describes the ways interlocking systems of oppression, evidenced in various identity facets (e.g., race, class, gender, sexuality, religion, ability, and language), frame individuals' social worlds. An awareness of intersectionality can ensure PreK–12 school policies and practices meet the needs of a student population diversifying rapidly along multiple lines. We situate intersectionality within examples of common schooling dilemmas and pose suggestions for educators to employ intersectional thinking in their practice.