A comparison of students’ reflective thinking across different years in a problem-based learning environment

Problem-based learning (PBL) is a constructivist approach to learning which is believed to promote reflective thinking in students. This study investigated how students in one particular institution developed in their reflective thinking habits—Habitual Action, Understanding, Reflection, and Critical Reflection—as they went through the daily practice of PBL. A 16-item questionnaire measuring the four levels of reflective thinking habits was administered to four cohorts of students: an incoming cohort, first-years, second-years, and third-years. First-year students rated themselves higher on Reflection and Critical Reflection, while third-years reported the highest levels of Habitual Action. Discriminatory and scatterplot analysis on the third year cohort revealed that while a proportion of students (47%) reported higher levels of Habitual Action with lower levels of Reflection, there was a small subgroup who also reported higher levels of both Habitual Action and Reflection. Overall, the results showed that PBL does promote the development of reflective thinking, particularly for first-year students, but that this development is not sustained consistently after that. This pointed to other possible factors that could hinder students’ development of reflective thinking in PBL.     

Use of comics to enhance students’ learning for the development of the twenty-first century competencies in the mathematics classroom

Abstract

This paper discusses the use of comics in teaching mathematics in the secondary mathematics classroom. We explicate how the use of comics in teaching mathematics can prepare students for the twenty-first century competencies. We developed an alternative teaching package using comics for two lower secondary mathematics topics. This alternative teaching package consists of (1) several sets of comic strips expounding all related mathematical concepts in a lively way; (2) tiered practice questions for learning reinforcement; and (3) a set of proposed lesson outlines with suggestions on how to use the comics for mathematics teaching. We also report how one of the teachers in our study used this teaching package in her mathematics lessons. Her lessons were video-recorded and 11 students were interviewed to help us understand how the mathematics comics lessons were enacted and the students’ perception of comics as instruction. We identified instances in which the teacher tweaked the provided resource to further enhance student learning and incorporated elements of the twenty-first century competencies during her lessons. Through selected student interviews, we also identified instances in which students commented on their gain from the new approach from the perspective of the twenty-first century competencies.     

[minus]plastic: influencing pro‐environmental attitudes among Singaporean youth

Plastics have much to offer as a modern convenience, but lack of responsible plastic waste management habits can lead to potentially harmful environmental effects. Past environmental initiatives revealed a lack of understanding about youth attitudes towards pro‐environmental issues. [minus]plastic, an online public environmental promotional campaign, encouraged Singaporean youth to recognize the importance of, adopt positive attitudes towards and subsequently adopt the practice of responsible plastic management. We propose the Temporal Incentives Model of Social Influence, based on Prochaska and DiClemente's stages of change model, to guide social campaign design. A pre‐post quantitative research design showed that the pre‐contemplation, contemplation and preparation stages progressed significantly after the campaign. The findings suggest that stimuli incorporating specialized information and small action steps allow migration to successive stages. With the strong presence of internet culture among Singaporean youth, the online medium was found effective in altering the attitudes of the campaign target audience, while exposure to the campaign messages proved useful in encouraging environmental learning among youth.     

CROSS CULTURAL VALIDATION OF THE TAT

This paper reports the results of a series of tests of the cross cultural validity of the Thematic Apperception Test as a psychometric instrument to gauge “motivation to succeed” in Atkinson's model of motivation. These tests represent the initial phase of a longer term project to test the validity, especially the criterion validity, of the Atkinson model in an Oriental context. Since the Atkinson model and the Thematic Apperception Test are both Occidental products, research on them (or with them) cannot proceed in the Orient without first testing for cultural bias. It is such testing that is reported in this paper.

The Thematic Apperception Test comprises a set of black and white drawings of white Americans dressed in the clothing of the late nineteen thirties. Each picture is designed to elicit a response by way of imagining the “before, during and after” of the situation depicted. However it is doubted whether young Oriental students would adequately relate to the depicted 1930s American whites to feel impelled to tell a story about them, which is what the Test is supposed to elicit. If such doubts were ratified by the research, it would not be advisable to use the Thematic Apperception Test in any subsequent work to test the Atkinson model. Even if our doubts proved unjustified (as it turned out), there would still remain the question of whether the Test reliably captured the need to achieve, which is a primary component of the Atkinson model.     

Migration distance-based platelet function analysis in a microfluidic system

Aggregation and adhesion of platelets to the vascular wall are shear-dependent processes that play critical roles in hemostasis and thrombosis at vascular injury sites. In this study, we designed a simple and rapid assay of platelet aggregation and adhesion in a microfluidic system. A shearing mechanism using a rotating stirrer provided adjustable shear rate and shearing time and induced platelet activation. When sheared blood was driven through the microchannel under vacuum pressure, shear-activated platelets adhered to a collagen-coated surface, causing blood flow to significantly slow and eventually stop. To measure platelet adhesion and aggregation, the migration distance (MD) of blood through the microchannel was monitored. As the microstirrer speed increased, MD initially decreased exponentially but then increased beyond a critical rpm. For platelet-excluded blood samples, there were no changes in MD with increasing stirrer speed. These findings imply that the stirrer provided sufficiently high shear to activate platelets and that blood MD is a potentially valuable index for measuring the shear-dependence of platelet activation. Our microfluidic system is quick and simple, while providing a precise assay to measure the effects of shear on platelet aggregation and adhesion.     

Developing online learning resources: Big data,social networks,and cloud computing to support pervasive knowledge

Utilizing online learning resources (OLR) from multi channels in learning activities promise extended benefits from traditional based learning-centred to a collaborative based learning-centred that emphasises pervasive learning anywhere and anytime. While compiling big data, cloud computing, and semantic web into OLR offer a broader spectrum of pervasive knowledge acquisition to enrich users’ experience in learning. In conventional learning practices, a student is perceived as a recipient of information and knowledge. However, nowadays students are empowered to involve in learning processes that play an active role in creating, extracting, and improving OLR collaborative learning platform and knowledge sharing as well as distributing. Researchers have employed contents analysis for reviewing literatures in peer-reviewed journals and interviews with the teachers who utilize OLR. In fact, researchers propose pervasive knowledge can address the need of integrating technologies like cloud computing, big data, Web 2.0, and Semantic Web. Pervasive knowledge redefines value added, variety, volume, and velocity of OLR, which is flexible in terms of resources adoption, knowledge acquisition, and technological implementation.     

TEACHING MATHEMATICS IN TWO LANGUAGES: A TEACHING DILEMMA OF MALAYSIAN CHINESE PRIMARY SCHOOLS

This paper discusses a teaching dilemma faced by mathematics teachers in the Malaysian Chinese primary schools in coping with the latest changes in language policy. In 2003, Malaysia launched a new language policy of teaching mathematics using English as the language of instruction in all schools. However, due to the complex sociocultural demands of the Malaysian Chinese community, mathematics is taught in both Mandarin and English in the Malaysian Chinese primary schools. Teachers faced the dilemma of code-switching between English and Mandarin particularly in low-performing classes. A substantial amount of class time was spent in translating, especially the mathematical terminologies. Findings of this study imply that further research studies are needed to examine the effectiveness of teaching mathematics bilingually versus monolingually in a Malaysian context.