Explaining student and home variance of Chinese reading achievement of the PIRLS 2011 Hong Kong

Hong Kong attained the top place in the Progress in International Reading Literacy Study (PIRLS) 2011, an international study of reading achievement, which arouses keen interest in understanding the reasons behind this remarkable achievement. Although factors associated with reading achievement in English have been widely studied, similar studies using Chinese as a different language system are limited. The present study proposes and tests a hypothetical model that attempts to explain the variance of reading achievement of Hong Kong pupils in the PIRLS 2011 study, focusing on parental and student factors. Data of 3,875 fourth graders from 132 primary schools and their parents or caregivers (n = 3,682) are involved in the analysis. Structural equation modeling supports the hypothesized model as tenable explaining 34% of the variance of reading achievement. Parental background acts as the fundamental factor that exerts an indirect effect on reading motivation, reading self‐efficacy, and reading achievement of students via books at home and early reading abilities. Reading motivation and reading self‐efficacy are found to be significant in influencing reading achievement. Implications for educational practices and future research are discussed.     

A conceptual framework for understanding children as agents in the transition from home to kindergarten

The transition from home to kindergarten, for most children, is the first and major ecological transition in their educational life. Kindergarten is the first educational setting in which children make sense about ‘school’ as a place to learn and about themselves as ‘pupils’. In this transition, children cross a cultural boundary from home to kindergarten and, in fact, they commute between the two cultural settings. In Vygotsky's view, children are active culture learners. How they cope with, and adapt to, the novel kindergarten is crucial to their ‘pupil career’ in their life‐long learning. Thus, this paper aims to provide early childhood education professionals with a framework to understand children as agents in the transition from home to kindergarten. This paper begins with a review of the concept of transition. It then presents a conceptual framework of the understanding of children as agents in the transition from home to kindergarten. Major elements of the conceptual framework are derived from sociocultural theory, and analyses of ‘rites of passage’ and ‘pupil career’. This highlights the relationships between layers of context, stages of transition, and adaptation outcomes.     

The Introduction of a Computerised Network to Support Educational Change in Hong Kong

In 1998, there was a major shift in the medium of instruction in Hong Kong secondary schools from English to Chinese. This change had many educational advantages. However, its implementation was not without problems, and many of the problems were non-trivial. This article reports the work of a computer network, specifically established to support the educational change and discuss about the strategy to provide effective support to educational changes through computer networking, including issues on service positions, content provision and the development of network culture interaction.     

Teachers’ socio-spatial practice in innovative learning environments

ABSTRACT

Understanding the relationship between innovative learning spaces and teachers’ pedagogical and social practices is essential given the increasing investment in innovative learning spaces worldwide. This study examined the socio-spatial practices of a group of teachers at a secondary school in an innovative learning space. Interview responses from 21 teachers revealed that space and social practices co-became through the interplay of the school culture, the physical, social and curriculum structures, and individual teachers’ sense-making of the practice. The study found that the cultural and structural systems drove the initial becoming of social practices, and that the individual systems shaped the diversified nature of the becoming. The findings suggest the importance of supporting teachers’ sense-making in terms of conceptions of subject teaching, professional identity, the affordances and constraints of the space and confidence in and capacity of constructing and managing effective learning experience in the space, when effecting educational changes with space.     

The influence of race and gender on children's conversations and playmate choices

The present study examined the influence of race and gender on children's conversations and friendship choices. Four hundred and twenty-eight children (M age = 7.5 years, SD = 0.34) from 2 racial minority groups (i.e., African Caribbean and South Asian) and the racial majority group (i.e., European) chose a picture of a playmate together with a peer. Race influenced the levels of assertion and affiliation in children's conversations. The effects of race on conversation also varied according to the gender of the children involved in interaction. Same-race pairs tended to choose in-group playmates, but same-race minority pairs showed less marked in-group preference. Cross-race pairs selected a majority-group child as a playmate most often.     

New Simulation Methods to Facilitate Achieving a Mechanistic Understanding of Basic Pharmacology Principles in the Classroom

We present a simulation tool to aid the study of basic pharmacology principles. By taking advantage of the properties of agent-based modeling, the tool facilitates taking a mechanistic approach to learning basic concepts, in contrast to the traditional empirical methods. Pharmacodynamics is a particular aspect of pharmacology that can benefit from use of such a tool: students are often taught a list of concepts and a separate list of parameters for mathematical equations. The link between the two can be elusive. While wet-lab experimentation is the proven approach to developing this link, in silico simulation can provide a means of acquiring important insight and understanding within a time frame and at a cost that cannot be achieved otherwise. We suggest that simulations and their representation of laboratory experiments in the classroom can become a key component in student achievement by helping to develop a student’s positive attitude towards science and his or her creativity in scientific inquiry. We present results of two simulation experiments that validate against data taken from current literature. We follow with a classroom example demonstrating how this tool can be seamlessly integrated within the traditional pharmacology learning experience.     

An analysis of small group interactions of Vietnamese students under the Bourdieusian theoretical lens

Group work has been increasingly encouraged and applied in Vietnamese universities. However, very little has been known about how Vietnamese university students work in a group and what the conditions are that help establish an effective group. This study attempted to redress this gap. The research applied Bourdieu’s social field theory to examine experiences of Vietnamese students in groups. It specifically explored Vietnamese students’ perceptions of interactions with ‘cultural and linguistic others’ and how their interactions were constrained and enabled by personal and contextual factors. Employing a qualitative research methodology, the study revealed that student interactions were strongly influenced by the rules set-up in the field, possessing capital resources valued in the field and disposition towards working with other cultures.     

回忆中国首批赴美“民间”访问学者团

1979年2月,来自中国科学院物理所的八位科学家组成的代表团到达埃文斯顿(Evanston),成为了自1949年以来首批踏足美国的"民间"访问学者。代表团成员有:钱永嘉、李铁成、郑家祺、沈觉涟、王鼎盛、程丙英、顾世杰以及林磊。林磊呆了三个月,而其余成员则呆了两年。林磊在西北大学的研究工作后来发表在世界最有声望的物理学期刊《物理评论快报》上,成为该期刊中第一篇中国作者发表的文章。本文将概述与这次访问相关的国内背景形势以及中美关系,讲述访问学者团的构成,以及1979年的访问活动本身,最后将谈及此次访问活动对代表们之后职业生涯的影响,以及对中国改革开放的整体影响。     

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.     

Shoe collar height and heel counter-stiffness for shoe cushioning and joint stability in landing

ABSTRACT

This study examined the effects of shoe collar-height and counter-stiffness on ground reaction force (GRF), ankle and knee mechanics in landing. Eighteen university basketball players performed drop landing when wearing shoes in different collar height (high vs. low) and counter-stiffness (stiffer vs. less stiff). Biomechanical variables were measured with force platform and motion capturing systems. Two-way repeated measures ANOVA was performed with α = 0.05. Wearing high collar shoes exhibited smaller peak ankle dorsiflexion and total sagittal RoM, peak knee extension moment, but larger peak knee varus moment than the low collar shoes. Stiffer counter-stiffness shoes related to smaller ankle inversion at touchdown and total coronal RoM, but larger peak knee flexion and increased total ankle and knee sagittal RoM than the less stiff counter-stiffness. Furthermore, wearing stiffer counter-stiffness shoes increased forefoot GRF peak at high collar condition, while no significant differences between counter-stiffness at low collar condition. These results suggest that although higher collar height and/or stiffness heel counter used can reduce ankle motion in coronal plane, it would increase the motion and loading at knee joint, which is susceptible to knee injuries. These findings could be insightful for training and footwear development in basketball.