Pembangunan dan penilaian modul pengajaran STEM bagi bidang pembelajaran statistik dan kebarangkalian dalam KSSM Matematik Tingkatan dua

Kajian ini bertujuan untuk membangunkan sebuah modul pengajaran STEM bagi bidang Statistik dan Kebarangkalian dalam KSSM Matematik Tingkatan 2 serta menentukan kebolehgunaannya. Ini berikutan daripada keputusan ujian TIMSS yang menunjukkan tajuk kebarangkalian mempunyai skor terendah, manakala analisis keperluan menunjukkan peratusan yang tertinggi. Proses pembangunan modul adalah berasaskan Model ADDIE, penerapan konsep STEM serta Teori Pembelajaran berasaskan inkuiri. Seterusnya, bagi memperoleh kesahan, kebolehpercayaan dan kebolehgunaan modul, kajian ini melibatkan 4 orang pakar bidang dan 42 orang guru Matematik. Dapatan menunjukkan bahawa modul yang dibangunkan mempunyai kesahan yang baik dengan peratusan persetujuannya 92%. Nilai alfa Cronbach 0.97 juga menunjukkan kebolehpercayaan modul adalah sangat baik. Hasil analisis kebolehgunaan modul pula menunjukkan peratusan persetujuannya adalah tinggi. Modul ini dapat memberikan impak positif terhadap proses pembelajaran dan pemudahcaraan (PdPc) STEM khususnya bagi bidang pembelajaran Statistik dan Kebarangkalian. Pembangunan pengetahuan berasaskan pedagogi baharu dijangka berupaya mengubah amalan sedia ada guru sekali gus dapat meningkatkan kesedaran dan pengetahuan guru-guru Matematik supaya lebih kritis dan kreatif semasa PdPc dijalankan. Diharapkan juga melalui pembangunan modul ini dapat memberikan gambaran yang jelas tentang kelebihan penggunaan modul semasa sesi PdPc dijalankan serta boleh dijadikan rujukan oleh pihak sekolah, PPD, JPN dan KPM

Existence of long memory in ozone time series

Long-memory is often observed in time series data. The existence of long-memory in a data set implies that the successive data points are strongly correlated i.e. they remain persistent for quite some time. A commonly used approach in modelling the time series data such as the Box and Jenkins models are no longer appropriate since the assumption of stationary is not satisfied. Thus, the scaling analysis is particularly suitable to be used for identifying the existence of long-memory as well as the extent of persistent data. In this study, an analysis was carried out on the observed daily mean per hour of ozone concentration that were available at six monitoring stations located in the urban areas of Peninsular Malaysia from 1998 to 2006. In order to investigate the existence of long-memory, a preliminary analysis was done based on plots of autocorrelation function (ACF) of the observed data. Scaling analysis involving five methods which included rescaled range, rescaled variance, dispersional, linear and bridge detrending techniques of scaled windowed variance were applied to estimate the Hurst coefficient (H) at each station. The results revealed that the ACF plots indicated a slow decay as the number lag increased. Based on the scaling analysis, the estimated H values lay within 0.7 and 0.9, indicating the existence of long-memory in the ozone time series data. In addition, it was also found that the data were persistent for the period of up to 150 days

Scaling and persistence of ozone concentrations in Klang Valley, Malaysia

The aim of this paper is to describe the characteristics of ozone concentration based on the value of Hurst coefficient. The Hurst coefficient, denoted as H, is used to explain the long-term degree of persistency in ozone concentration in Malaysia. This paper investigates the scaling properties and persistency of ozone concentrations at six selected air quality monitoring stations in Klang Valley, Malaysia. Daily mean for the hourly data of ozone concentration from 1998-2006 is considered in this study. In describing the statistical properties, several related statistics are identified and the autocorrelation functions of the observed data were plotted. The anomaly method is used to deseasonalise the seasonal variation and the natural non-stationary of the data. Next, the persistency of ozone concentration is determined by using the scaling analysis, namely Dispersional Ratio Method. This method considers two dispersion measures, that is the range and variance. The result shows that there are two different scaling regions, separated by a critical time scale, ncwhich is approximately 90 days. For shorter time scale (n nc)where the H values are between 0.5 < H < 1 at all monitoring stations. These findings provide information on scaling behaviour and persistence in ozone concentration in the ambient air of Klang Valley, Malaysia

Implementasi Kemahiran Berfikir Aras Tinggi (KBAT) Matematik : adakah suatu realiti?

Kajian ini dijalankan bagi mengkaji tahap implementasi Kemahiran Berfikir Aras Tinggi (KBAT) semasa pengajaran dan pemudahcaraan (PdPc) Matematik oleh guru Matematik sekolah menengah. Kajian ini juga meninjau hubungan antara tempoh pengalaman mengajar, kehadiran ke kursus KBAT, pengetahuan dan kemahiran dengan amalan KBAT guru dan faktor yang mempengaruhi amalan penerapan KBAT guru Matematik. Kajian berbentuk kuantitatif dan tinjauan terhadap 110 orang guru Matematik dengan pemilihan rawak di 21 buah sekolah menengah di daerah Kerian, Perak dijalankan. Deskriptif, korelasi Pearson, korelasi Spearman dan regresi berganda diguna untuk menganalisis data. Secara keseluruhannya, implementasi KBAT guru Matematik dalam PdPc Matematik adalah pada tahap sangat memuaskan. Hubungan positif diperhatikan antara kehadiran ke kursus KBAT, pengetahuan dan kemahiran dengan amalan PdPc guru. Berdasarkan model regresi, faktor pengetahuan dan kemahiran telah mempengaruhi amalan KBAT guru Matematik semasa PdPc. Hasil kajian menunjukkan bahawa implementasi KBAT guru-guru sekolah menengah di Kerian boleh dijadikan panduan oleh Bahagian Perancangan Kurikulum dalam merangka penyediaan kursus sokongan dan profesional berkaitan pedagogi KBAT. Pendedahan serta dorongan yang berterusan kepada guru Matematik untuk terus mengimplimentasi KBAT semasa PdPc Matematik selari dengan Kurikulum Matematik dan Falsafah Pendidikan Negara adalah perlu agar anggapan bebanan terhadap pelaksanaan KBAT bertukar kepada suatu PdPc yang kreatif dan menarik sekaligus menjurus kepada keperluan Pendidikan 4.0

Teachers’ Perspectives on the Development of Augmented Reality Application in Geometry Topic for Elementary School

Augmented Reality (AR) is a new evolving technology that can enhance the learning experienceby making learning more engaging, has a beneficial influence on teaching and learning,and assists in comprehension, specifically when it comes to abstract concepts. Teachers playa pivotal role in accelerating the widespread use of AR in education, making it crucial toget their thoughts and perspectives. Based on the perspectives of mathematics teachers, thisresearch aims to determine the necessity for developing an augmented reality learning applicationin the geometry topic for elementary school students through a questionnaire that hasbeen answered by 52 elementary mathematics teachers from Northern State Malaysia. Thefindings of this study were analyzed using descriptive analysis with a value of Cronbach alpha(α = 0.98). The findings of the study indicate three main elements that need to be emphasizedfor the AR development process, namely learning strategy design, presentation design, andinteractivity design. Based on the mean of the research conducted, the findings of the threeelements indicate a significant necessity. The development of AR applications must incorporatethese three elements in order to assist elementary school mathematics teachers in designingAR learning applications that maximize student achievement

Student satisfaction with online learning: A survey of HCMC private university second-year students

Technology advancements and the onset of COVID-19 have led many higher education institutions to implement online learning as a short-term response to the crisis. But the abrupt change to online schooling has had a significant impact on pupils. For this reason, stakeholders are concerned about ensuring that students are satisfied with their educational experience. Many scholars believe that identifying the factors that influence student happiness is critical from a scientific perspective. Only a handful of studies have been able to identify the factors that influence student satisfaction with online learning in the context of a school ecosystem. To address this issue, this study focused on private universities. A total of 320 students from two different private universities took part in this poll. Results were analyzed using PLS-SEM to determine which factors were most prominent from previous research. According to the study's conclusions, three factors contribute to a student's sense of belonging and course effectiveness. This study found three variables of student satisfaction with online learning that the stakeholders should give more attention to

Student satisfaction with online learning: A survey of HCMC private university second-year students

Technology advancements and the onset of COVID-19 have led many higher education institutions to implement online learning as a short-term response to the crisis. But the abrupt change to online schooling has had a significant impact on pupils. For this reason, stakeholders are concerned about ensuring that students are satisfied with their educational experience. Many scholars believe that identifying the factors that influence student happiness is critical from a scientific perspective. Only a handful of studies have been able to identify the factors that influence student satisfaction with online learning in the context of a school ecosystem. To address this issue, this study focused on private universities. A total of 320 students from two different private universities took part in this poll. Results were analyzed using PLS-SEM to determine which factors were most prominent from previous research. According to the study's conclusions, three factors contribute to a student's sense of belonging and course effectiveness. This study found three variables of student satisfaction with online learning that the stakeholders should give more attention to