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Search Results: 1 - 10 of 8146 matches for " Lim Hooi Lian "
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Assessing Algebraic Solving Ability Of Form Four Students
Lim Hooi Lian,Noraini Idris
International Electronic Journal of Mathematics Education , 2006,
Abstract: Mathematics researchers generally agree that algebra is a tool for problem solving, a method of expressing relationship, analyzing and representing patterns, and exploring mathematical properties in a variety of problem situations. Thus, several mathematics researchers and educators have focused on investigating the introduction and the development of algebraic solving abilities. However research works on assessing students' algebraic solving ability is sparse in literature. The purpose of this study was to use the SOLO model as a theoretical framework for assessing Form Four students' algebraic solving abilities in using linear equation. The content domains incorporated in this framework were linear pattern (pictorial), direct variations, concepts of function and arithmetic sequence. This study was divided into two phases. In the first phase, students were given a pencil-and-paper test. The test comprised of eight superitems of four items each. Results were analyzed using a Partial Credit model. In the second phase, clinical interviews were conducted to seek the clarification of the students' algebraic solving processes. Results of the study indicated that 62% of the students have less than 50% probability of success at relational level. The majority of the students in this study could be classified into unistructural and multistructural. Generally, most of the students encountered difficulties in generalizing their arithmetic thinking through the use of algebraic symbols. The qualitative data analysis found that the high ability students seemed to be more able to seek the recurring linear pattern and identify the linear relationship between variables. They were able to co-ordinate all the information given in the question to form the algebraic expression and linear equations. Whereas, the low ability students showed an ability more on drawing and counting method. They lacked understanding of algebraic concepts to express the relationship between the variables. The results of this study provided evidence on the significance of SOLO model in assessing algebraic solving ability in the upper secondary school level.
A Multi-Strand Test for Assessing Year 4 Pupils’ Proficiency in Area Formulae  [PDF]
Chew Cheng Meng, Wun Thiam Yew, Lim Hooi Lian, Wong Sing Ie
Open Journal of Social Sciences (JSS) , 2016, DOI: 10.4236/jss.2016.42003
Abstract:

The objectives of this study are to develop a multi-strand test for assessing Year Four pupils’ proficiency in area formulae and to determine their levels of proficiency in the area formula of a square, rectangle and triangle, respectively. The researchers will employ a cross-sectional survey research design and cluster sampling will be used to select a sample from a population of Year 4 pupils who are studying in all public schools in the state of Penang, Malaysia. However, at this stage of the study, the paper only reports the results of the pilot test involving a sample of sixty- seven Year 4 pupils who have learned the area formulae from a public primary school in Penang. The results of the pilot test indicate that among the five strands of proficiency in each of the area formulae, adaptive reasoning shows the highest percentage of pupils who are not proficient and among the three area formulae, adaptive reasoning in the area formula of a triangle shows the highest percentage of pupils who are not proficient. But, among the five strands of proficiency in the area formula of a square, rectangle and triangle, procedural fluency, conceptual understand- ing and productive disposition show the highest percentage of pupils who are very proficient, respectively. Overall, the area formula of a rectangle shows the highest percentage of pupils who are very proficient (59.7%). But, the area formula of a triangle shows the highest percentage of pupils who are still not proficient (31.3%). The results of the pilot study seem to indicate that the multi- strand test is able to assess the levels of proficiency in the area formula of a square, rectangle and triangle, respectively. The results imply that more attention should be given to the strand of adaptive reasoning in the teaching, learning and assessment of the area formulae in order to improve the pupils’ adaptive reasoning in the area formulae.

Assessing Algebraic Solving Ability: A Theoretical Framework
Lim Hooi Lian,Wun Thiam Yew
International Education Studies , 2012, DOI: 10.5539/ies.v5n6p177
Abstract: Algebraic solving ability had been discussed by many educators and researchers. There exists no definite definition for algebraic solving ability as it can be viewed from different perspectives. In this paper, the nature of algebraic solving ability in terms of algebraic processes that demonstrate the ability in solving algebraic problem is discussed. A theoretical framework of algebraic solving ability was formulated based on three phases of algebraic processes, historical development of algebra and SOLO model (Structured of the Observed Learning Outcome). The three phases of algebraic processes included investigating the pattern by collecting the numerical data, representing and generalizing the pattern into a table and an equation, and interpreting and applying the equation to the related or new situation. There are four levels (unistructural, multistructural, relational and extended abstract) of structure response of SOLO model that had been applied to assess students’ algebraic solving ability incorporate two content domains of algebraic equation, namely direct variation and inverse variation.
PRESERVICE SECONDARY SCHOOL MATHEMATICS TEACHERS' SUBJECT MATTER KNOWLEDGE OF CALCULATING PERIMETER AND AREA
Wun Thiam Yew,Sharifah Norul Akmar Syed Zamri,Lim Hooi Lian
Academic Research International , 2011,
Abstract: This purpose of this article is to examine preservice secondary school mathematics teachers’ subject matter knowledge of calculating perimeter and area of composite figure. Clinical interview technique was employed to collect the data. Interview sessions were recorded using digital video camera and tape recorder. Subjects of this study consisted of eight preservice secondary school mathematics teachersenrolled in a Mathematics Teaching Methods course at a public university in Peninsula Malaysia. They were selected based on their majors (mathematics, biology, chemistry, physics) and minors (mathematics, biology, chemistry, physics). This article presents the analysis of the responses of the subjects related to a particular task. The finding suggests that most of the preservice secondary school mathematics teachers in this study had adequate procedural knowledge of calculating perimeter and area of composite figure. Allthe preservice teachers in this study understand the general measurement convention that perimeter and area is measured by linear units and square units respectively. All of them wrote the measurement units (without being probed) for the answers of the perimeter and area of the composite figure that they have calculated. Nevertheless, none of the preservice teachers in this study check the correctness of their answers. Once getting an answer, they seemed to satisfy that the task was finished. When probed to check answer, then only they suggested the strategies that they would use to check the answers. The preservice teachers in this study employed two types of strategies to verify their answers for calculating perimeter and area of composite figure, namely recalculating strategy and alternative method. The similarities and differences of the findings of this study in comparison with the findings of previous studies were discussed.
E-shopping: An Analysis of the Uses and Gratifications Theory
Weng Marc Lim,Ding Hooi Ting
Modern Applied Science , 2012, DOI: 10.5539/mas.v6n5p48
Abstract: The Internet has experienced an exponential growth in the number of users and has created enormous increases in its marketing and communication applications during a considerably short period of time. Although both scholars and practitioners have jointly acknowledged the capabilities of the Internet as a marketing tool that offers great potentials and advantages, there remains a scarcity of knowledge pertaining to the motivations for using the Internet and associated online consumer behaviours in more web-specific scenarios. The uses and gratifications theory (U&G) provides a theoretical grounding and an avenue to further understand consumers’ attitude and intention of using the Internet as a shopping channel from a media perspective. While most of the studies done on the U&G in the Internet are situated in American and European contexts, this paper considers the U&G structure of online shoppers in the Asian context (more specifically, in Malaysia). More specifically, this study attempts to shed some light on how consumers form their attitude and online shopping intention based on the uses and gratifications structure to the existing literature and managerial implications for entrepreneurs and marketers of electronic businesses on how best to serve and attract consumers to shop online via the management of online shopping technologies.
E-shopping: an Analysis of the Technology Acceptance Model
Weng Marc Lim,Ding Hooi Ting
Modern Applied Science , 2012, DOI: 10.5539/mas.v6n4p49
Abstract: One of the continuing issues in the management of information technologies is the difficulty of identifying significant factors that influences consumers to accept and make use of systems developed and implemented by others. Existing studies have employed the technology acceptance model (TAM) to address this issue and the model has now become one of the most widely used models in information technology. However, an exhaustive review of the literature suggest that findings of TAM relationships are not borne out in all studies - there remains a wide variation of predicted effects in various studies with different types of users and systems. While there are existing studies concentrated on online shopping globally, many conclude with calls for a closer examination of online shopping intentions in specific countries, typically those in developing and less developed countries. Online shopping remains in the early stage of development in Malaysia. Little is known about the acceptance of online shopping and the factors which influence this behaviour. This study attempts to fill in this gap by providing insights on how consumers form their attitudes and online shopping intentions to the existing literature and managerial implications for online shopping retailers and marketers on how best to serve and attract consumers to shop online via the management of online shopping technologies.
Preoperative and Postoperative Diffusion Tensor Imaging in Patients with Extra-Axial Lesions at the Frontal or Temporal Regions of the Brain and Their Correlations with Neuropsychological Outcomes  [PDF]
Lim Liang Hooi, Zamzuri Idris, Win Mar, Wan Nor Azlen Wan Mohamad
Journal of Biomedical Science and Engineering (JBiSE) , 2016, DOI: 10.4236/jbise.2016.913052
Abstract: The underlying changes in the neuronal connectivity adjacent to brain tumours cannot always be depicted by conventional MR imaging. The hypothesis of this study was that preoperative neuropsychological deficits were associated with impairment of diffusivity in association fibre bundles. Hence, we investigated the potential of combined diffusion tensor imaging (DTI) fibre tracking and fractional anisotropy (FA) values of the fibres to determine changes in association fibres and their correlation to neuropsychological scores. Our study consisted of eighteen patients with extra-axial brain tumours in areas adjacent to the frontal and temporal lobes. They were assessed pre- and postoperatively with DTI and neuropsychological assessments. MR examinations were performed on a 3T-scanner. FA values were calculated for the uncinate fasciculus, arcuate fasciculus, superior fronto-occipital fasciculus, inferior fronto-occipital fasciculus and corticospinal tracts ipsilateral and contralateral to the tumor. These values were compared with neuropsychological scores for language, memory and attention. The analysis revealed marked differences in pre- and post-excision of the tumor in both FA values and neuropsychological scores. Quantitative DTI was able to show significant differences in diffusivity of the association fibres before and after the surgery (P < 0.05). The additional use of DTI-fibre integrity and neuropsychological tests may aid in prognostication and decision making prior to surgery.
Teachers’ Expectancy and Students’ Attitude towards Science
Prihadi Kususanto,Chin Sook Fui,Lim Hooi Lan
Journal of Education and Learning , 2012,
Abstract: The main purpose of this study was to investigate the influence of teachers’ expectancy and students’ attitude towards science (ATS). The participants were 130 teachers and 300 students from secondary schools in Indonesia. The results indicated teachers’ expectancy significantly affected students’ ATS. Different kind of expectancy led teachers to have different classroom behavior. Teachers expect students from the science streams to have significantly higher potential to improve their academic achievements compared to the students from non-science stream. The results also showed that there is a significant correlation between teachers’ expectancy and students’ perception of teachers’ behavior. Furthermore, because students from science stream perceived that their teachers are supportive, they believe that the teachers expected them to score higher in science. In turn, this belief led them to possess higher ATS compared to the non-science stream students, which perceived that their teachers are focusing more on controlling their behavior. It could be concluded that teachers’ expectancy affected students’ ATS, moderated by the students’ perception of teachers’ behavior.
Role of Pyridine as a Biomimetic Organo-Hydride for Homogeneous Reduction of CO2 to Methanol
Chern-Hooi Lim,Aaron M. Holder,James T. Hynes,Charles B. Musgrave
Physics , 2014, DOI: 10.1021/ja510131a
Abstract: We use quantum chemical calculations to elucidate a viable homogeneous mechanism for pyridine-catalyzed reduction of CO2 to methanol. In the first component of the catalytic cycle, pyridine (Py) undergoes a H+ transfer (PT) to form pyridinium (PyH+) followed by an e- transfer (ET) to produce pyridinium radical (PyH0). Examples of systems to effect this ET to populate the LUMO of PyH+(E0calc ~ -1.3V vs. SCE) to form the solution phase PyH0 via highly reducing electrons include the photo-electrochemical p-GaP system (ECBM ~ -1.5V vs. SCE at pH= 5) and the photochemical [Ru(phen)3]2+/ascorbate system. We predict that PyH0 undergoes further PT-ET steps to form the key closed-shell, dearomatized 1,2-dihydropyridine (PyH2) species. Our proposed sequential PT-ET-PT-ET mechanism transforming Py into PyH2 is consistent with the mechanism described in the formation of related dihydropyridines. Because it is driven by its proclivity to regain aromaticity, PyH2 is a potent recyclable organo-hydride donor that mimics the role of NADPH in the formation of C-H bonds in the photosynthetic CO2 reduction process. In particular, in the second component of the catalytic cycle, we predict that the PyH2/Py redox couple is kinetically and thermodynamically competent in catalytically effecting hydride and proton transfers (the latter often mediated by a proton relay chain) to CO2 and its two succeeding intermediates, namely formic acid and formaldehyde, to ultimately form CH3OH. The hydride and proton transfers for the first reduction step, i.e. reduction of CO2, are sequential in nature; by contrast, they are coupled in each of the two subsequent hydride and proton transfers to reduce formic acid and formaldehyde.
Performance of Islamic Indices in Malaysia FTSE Market: Empirical Evidence from CAPM
Hooi Hooi Lean,Parham Parsva
Journal of Applied Sciences , 2012,
Abstract: The Capital Asset Pricing Model (CAPM) has been examined extensively for common stock return and index return. However, the examination with Islamic stocks is limited. This paper investigates the relationship between return and market risk for the Islamic stocks in Malaysia Financial Times Stock Exchange (FTSE) market. FTSE Bursa Malaysia EMAS Shariah Index (FBMSHA) and FTSE Bursa Malaysia Hijrah Shariah Index (FBMHS) are proxy for the Islamic portfolio. The finding provides some new insights on the performance of Islamic stocks in Malaysia FTSE market through stating the hypothesis that the risk of the Islamic indices is high in a downturn economic status in comparison with a normal period.
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