The  current  practice  in  teaching  Chemistry  subject  is found  to  be  teacher-centered  where  teachersengage actively  in  transmitting  knowledge  while  students  act  as  passive  recipientsof  knowledge.  This  might  affect students’ mastery in learning three representation levels of Chemistry (macroscopic, microscopic and symbolic). As a result, students tend to formanon-scientific understanding and develop an alternative concept. The shift to Blended Problem-based Learning (BPBL) is therefore potential to help overcome this problem. Thus, this study is  aimed atinvestigatingthe  roles  of  teacher  and  students  in  overcoming  the  formation of  alternative  conceptsfor  three  representation  levels  of  Chemistry inBPBL.  This  study  applies acase  study  research  design. Two teachers  and  20  students  from  two  different  Fully  Residential  Schools  are  selected using purposive  sampling technique. .....

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The  purpose  of  this  study  was  to  investigate  the effect  of  student’s  problem  solving  abilities  with  contextual approaches. Student’sproblem solving ability is still low because the teacher does not associate mathematics material with  student's  real  world  situations.  In  addition,  students  are  also  less  active  especially  to  find  mathematical concepts. To overcome this problem, a Contextual Approach was applied in mathematics learning. This research is a quasi-experimental  research  using  a  quantitative  approach.  The  research  population  was students  of grade IX students at SMPN 1 Bayang. The used technique for sampling is random sampling. The research sample was of class IX.2 as an experimental class and class IX.3 as a control class. The  used instrument was a  problem solving ability test  and questionnaire.  Data  obtained  through  tests  were  analyzed  using  two-way  variance  analysis.Â.....

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In this paper, an intuitionistic fuzzy B-spline space curve is defined and some of its properties is introduced. Firstly, intuitionistic fuzzy control point is defined based on intuitionistic fuzzy and geometrical modeling concepts. Each of the control point relation that consists of three function is find and shown. Later, the control point is blended with B-spline basis function and intuitionistic fuzzy B-spline curve is visualized. Some of the control point and space curve properties in the Euclidean space is also discussed throughout this paper  ..

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Extrema points are usually applied to solve everyday problems, for example, to determine the potential of a created tool and for optimisation. In this study, extrema points were used to help determine the region of interest (ROI) for the iris  in  iris  recognition  systems.  Iris  recognitionis  an  automated  method  ofbiometricidentification  that  uses mathematical  pattern-recognition  techniques  on  the  images  of  one  or  both irisesof  an  individual'seyes,  where  the complex patterns are unique, stable, and can be seen from a distance. In orderto obtain accurate results, the iris must be localised correctly. Hence, to address this issue, this paper proposed a method of iris localisation in the case of ideal and non-ideal iris images. In this study, the algorithm was based on finding the classification for the region of interest (ROI) with the help of a Support Vector Machine (SVM) by applying a histogram of grey level values as a descriptor in each.....

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Numerous decisions in our daily lives require the ability to calculate, solve problems, and employ concepts and skills in mathematics. However, students always have bad perceptions in mathematics as this subject is often challenging for  students  to  master.Reports  on  issues  about  students’  mathematical  education  have  been  raised  by  many mathematics educators. Among of the issues are about difficulties in understanding mathematical concepts, attitudes towards  mathematics,  low  achievement  in  mathematics  and  many  more.  Hence,  the  aim  of  this  study  is  to  explore students’  perceptions  and  attitudes  towards  mathematics  by  analyzing  the  impact  of  teaching  application  of mathematics  to  the  students.  The  data  were  collected  from  Computer  Science  students  where  each  participant  was assigned to complete self-reported and close ended questionnaire. In this study, examination on .....

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This article is concerned with the assessment of feelings that Japanese junior high school students have towards the course unit learning of mathematics curricula. To accomplish this purpose, 616 junior high school students of a typical public school were surveyed regarding their feelings towards these course units and a two-step analysis was carried out. The first part consisted of the tabulation of Likert scale type survey with 5 levels of evaluation from 1 (‘not good at’) through 5 (‘good at’) aimed to evaluate their feelings towards learning mathematics in general as part of their educational activity. Next, we looked only into the students who responded ‘no problem’. As a matter of fact,these respondents accounted for 181 students in all with 44 of them in first year, 75 in second year, and 63 in third year. Now focusing strictly on these students, we performed a correspondence analysis of their feelings towards the course units. The results are discussed in terms of t.....

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Reagent  grade  of  calcium  and  magnesium  hydroxides  were  used  in  this  study  to  treat  acid  mine  drainage  (AMD)sample. AMD sample was collected from a tin tailing pond that located in Pengkalan Hulu, Perakwhich as pHaround 2.87±  0.01. pH  values  had  increased  after  treated  with  calcium  hydroxide  (Ca(OH)2)  and  magnesium  hydroxide (Mg(OH)2), respectively. The maximum pHvalues obtained was 11.35± 0.01by using 1.0 g of Ca(OH)2at interval time 5 min. ForMg(OH)2, the highest pHvalue can be obtainedwas 7.22 ± 0.01 by using 1.0 g at interval time 30 min. The  concentration of heavy metals such as aluminum, copper, iron, manganese, nickel  and zinc  were reduced after reaction withboth materials.For examplesaluminum concentration was reduced from 110.33 mg/L to 2.80 mg/L and 0.01 mg/L by using 1.0 g of Ca(OH)2and Mg(OH)2, respectively...

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The main purpose of this study is to determine the prevailing modern teaching methods in teaching-learning process. The descriptive-quantitative method was employed using a questionnaire as data gathering instrument. Frequencies, percentages and weighted mean were used to treat the data. The target population of the study was 286 of the senior high school students of the University of La Salette, Inc. – Santiago City during the school year 2018-2019. The study showed that modern teaching method has a positive impact on the learning of the students. It gives a lot of benefits that characterize a life-long learning. Also, through the modern teaching a method, students would be able to learn some values that would lead them to success. It also revealed that among the four-teaching method, brainstorming is the most effective for the students to learn. Based on the findings and conclusions of the study, it was recommended that teachers need to continually develop a method that would let t.....

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The review was aimed to review the phytochemical of the Polyalithia longiflia. Phytochemical screening for all parts of Polyalithia longiflia have been done and shown most of the chemical group compounds such as glycosides, Sterol, Carbohydrates, terpenoids, flavonoids. 174compounds have been isolated from five parts (leaves, steam bark, seeds, fruits, root) of Polyalithia longiflia, these compounds have been drown their structure. Leaves of Polyalithia longiflia were extracted and isolated 99 compounds most of these compounds were terpenoids, 59 compounds were isolated from the stem bark belong to different chemical groups such as Terpenoids, Alkaloids, Phenol, Fatty acids, and Steroids, 16 compounds were isolated from the fruit from several chemicals groups, 11 compounds were isolated from the root,7 compounds were isolated from the seeds which belong to different chemical groups which are Terpenoids, Fatty Acids, and Carbohydrate. Many of these compound have been used in medical fil.....

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This study has developed a model of peace based on al-Quran. Considering this situation, the Indonesia University of Education and the University of Education Sultan Idris in Malaysia undertook an initiative to jointly identify the local value that has contributed to the perceived and expected peace based on al-Quran in school communities. In this case, schools successfully establish a climate of peace, respect, compassion, fair, ethical and mutual respect. Violence varieties, which are done by teachers and students, have been already very alarming even in the category of emergency. Peace education is an effort to develop a culture of peace schools reinforced with religious values, that education has the capacity and the responsibility to lift humanitarian issues, about how people live side by side with others, and have concern for other human beings. This is indeed the true crisis in education. This study uses qualitative and quantitative approaches. A quantitative approach is used to.....

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