Student teachers' views on national education: the need for greater alignment between policy and praxis

This study examines student teachers' views on their country and on National Education (NE), with the aim of promoting teachers' understanding of the need for NE. A 40-item survey was administered to 1,650 student teachers, to assess their sense of belonging, protective attitude, perceived right, ethnic tolerance and community and political involvement, as well as their perceptions of the importance and learning outcomes of NE. Significant differences were observed between the genders and between the various programme groups in terms of the student teachers' responses, suggesting the need for a more comprehensive approach to NE in initial teacher education.     

Using dual Euler angles for the analysis of arm movement during the badminton smash

Camera techniques are typically used in the study of human movement. However, as the number of joints and markers involved in a study increases, data extraction and calculation become increasingly tedious and complicated. To overcome this challenge, we propose a method of study that simplifies data extraction and calculation by using an electrogoniometer and dual Euler angles. The contribution of the rotation of each arm segment to produce a racket head’s speed was identified in the context of a badminton smash. The contribution of each segment rotation was computed using dual velocity analysis. A set of orthogonal Cartesian frames was established for computing the anatomical rotational velocities for each of the three segments of the upper arm. Electrogoniometers were attached to the subjects during the execution of the smash to obtain measurements of joint angles throughout the motion. To test the algorithm, the calculated velocity of the racket head was compared to the measured velocity. The calculated velocity was derived from an algorithm, while the measured velocity was obtained from a video image. The results are similar, indicating that the dual velocity method is suitable for determining segmental velocities in such kinematic situations.     

TPACK design scaffolds for supporting teacher pedagogical change

Many empirical studies show that teachers have difficulty designing technology-integrated lessons for student-centered learning. Supporting teachers to change their pedagogical practice is a challenge faced in teacher professional development for technological pedagogical content knowledge (TPACK). This study describes how teachers’ conceptions of pedagogical change can be supported through the use of different kinds of TPACK design scaffolds—a meaningful learning rubric, lesson design heuristics and TPACK Activity Types. The impact of these design scaffolds on the TPACK confidence and lesson design confidence of 47 teachers and instructors who were attending a graduate course in educational technology were assessed through pre and post course surveys. Expert ratings of technology-integrated lesson plans designed at the beginning and end of the course were also used to determine the extent of pedagogical change enacted. It was found that these design scaffolds had positive effects on teachers’ TPACK confidence and were useful for helping the teachers to articulate pedagogical change in their lesson designs. Participants’ feedback for improving the TPACK design scaffolds as well as guidelines for using these to support pedagogical change through TPACK professional development programmes are discussed.

     

Signature Pedagogies for Educators Using Films: An Example From Singapore

This article discusses the application of Shulman's “signature pedagogies” through the utilization of films for preservice teachers and school leaders in Singapore. Using the films Dead Poets Society and Ahead of the Class, this article explains how these films facilitated the participants' engagement with the surface, deep, and implicit structures of education. In the process, they applied critical thinking by arriving at criteria-based and context-appropriate judgments reflectively. The research findings reveal two broad themes. First, the educators were cognizant of the key issues, opportunities, constraints, and obstacles in teaching and school leadership. Second, they appreciated the importance of adopting situated teaching and leadership approaches to cater to the needs of various educational stakeholders. This study highlights critical thinking as a sociocultural practice where the educators (re)interpreted the films through their cultural lenses and drew on local resources and logics to deal with the challenges in teaching and the school contexts.     

Some Characteristics of East Asian Mathematics Classrooms Based on Data from the Timss 1999 Video Study

In this paper, characteristics of mathematics classrooms in the East Asian countries¹ of Hong Kong and Japan are discussed based on an analysis of the data of the TIMSS 1999 Video Study. The data shows that although students in these East Asian countries did not talk a lot in the classroom, they were exposed to more instructional content. The mathematics problems they worked on were set up mainly using mathematical language, and compared with the problems solved by students in other countries, the problems took a longer duration to solve and more proof was involved. According to the judgement of an expert panel on the Hong Kong lessons (Japan did not participate in this part of the study), more advanced contents were covered and the lessons were more coherent. The mathematics presentations were more developed, and the students were more likely to be engaged in the lessons. In sum, the overall quality of the teaching in this East Asian country was judged to be high. The findings show that high quality teaching and learning can take place even in a teacher directed classroom. It is argued that these East Asian classroom practices are deeply rooted in the underlying cultural values of the classroom and the wider society. The paper ends by drawing some implications of the study for the mathematics education community in other cultures.     

Working against globalisation: the role of the media and national education in Singapore

This article discusses how the media and schools are used as disciplinary apparatuses to resist and work against globalisation in Singapore. Aihwa Ong calls the deployment of state ideological apparatuses, such as the media and schools, acts of ‘reassemblage’, when technocrats resort to assemble institutions, diverse Government practice and political values to engage in citizenship production. The National Education curriculum package introduced to Singapore schools is one example of ‘reassemblage’, which aims to reinvent subject‐citizens who are perceived as lacking cultural mooring and a national identity. I argue that in the context of globalisation, this cultural experimentation of constructing a national identity and creating a sense of belonging is fraught with ruptures, as ‘youthscapes’ and new communication technologies are potentially the liminal spaces where other sources of identities are up for grabs. These liminal spaces further allow youths to perform ‘elective belonging’ rather than a sense of belonging bound by the ‘national’ and ‘local’.     

Perceptions of low ability students on group project work and cooperative learning

The benefits of cooperative learning strategies, such as group project work, have been advocated in a wide range of educational contexts. There is however, scant information on the outcome of such programs on students of low academic ability. In this study, interviews were conducted with four groups of low-ability students, with the aim of investigating their perceptions on the effectiveness of group project work in promoting their social and cognitive skills. Our findings show that although the students recognized that the program improved their competence in interacting with others, there are problematic organizational and instructional issues that have to be ironed out before students can profit fully from cooperative learning programs.     

Singapore Education in “New Times”: Global/local imperatives

This paper critically examines recent education reform in Singapore launched under the rhetoric of “Thinking Schools, Learning Nation” (TSLN). I will make explicit the context and the premises underlying the new state‐initiated TSLN education reform. I argue that the re‐alignment of education change is a response to the trajectories of (global) economic conditions, concomitantly framed by (local) sociopolitical and cultural–ideological needs. Next, I tease out and critique the pedagogical problems and contradictions embedded in the TSLN education reform. The paper concludes by asking what critical perspectives can be drawn from the Singapore case vis‐a`‐vis globalisation and education reform.     

Personal Bias or Government Bias? Testing the Hostile Media Effect in a Regulated Press System

This study examines the hostile media effect in relation topartisans’ perception of the slant of news coverage ina highly regulated press environment—Singapore. We foundthat partisans in Singapore perceived unbiased news to be infavor of the other side, while the nonpartisans perceived thesame news to be neutral. Our findings show that hostile mediaeffects can persist in a restricted press environment wherepeople are aware of the government's control of media coverage.We also found that partisans’ awareness of the government'scontrol of media information contributed to their perceptionof the article slant as well. Received for publication May 9, 2006. Accepted for publication December 5, 2006.     

Microfluidic size separation of cells and particles using a swinging bucket centrifuge

Biomolecular separation is crucial for downstream analysis. Separation technique mainly relies on centrifugal sedimentation. However, minuscule sample volume separation and extraction is difficult with conventional centrifuge. Furthermore, conventional centrifuge requires density gradient centrifugation which is laborious and time-consuming. To overcome this challenge, we present a novel size-selective bioparticles separation microfluidic chip on a swinging bucket minifuge. Size separation is achieved using passive pressure driven centrifugal fluid flows coupled with centrifugal force acting on the particles within the microfluidic chip. By adopting centrifugal microfluidics on a swinging bucket rotor, we achieved over 95% efficiency in separating mixed 20 μm and 2 μm colloidal dispersions from its liquid medium. Furthermore, by manipulating the hydrodynamic resistance, we performed size separation of mixed microbeads, achieving size efficiency of up to 90%. To further validate our device utility, we loaded spiked whole blood with MCF-7 cells into our microfluidic device and subjected it to centrifugal force for a mere duration of 10 s, thereby achieving a separation efficiency of over 75%. Overall, our centrifugal microfluidic device enables extremely rapid and label-free enrichment of different sized cells and particles with high efficiency.