According to WHO, the permissible limit of arsenic till 1993 was 0.05 mg. /L of drinking water. In 1993, WHO modified the maximum level and brought it down to 0.01 mg./L. According to the report of School of Environment Studies of Jadavpur University (1992-1993), West Bengal has 6 districts, affected by arsenic contamination of ground water. The present paper attempts to find out the vulnerability and impact of arsenic on human being. A detailed survey was conducted at Dahapara village of Murshidabad district to assess the present condition of the area giving emphasis on the identification of sources of arsenic pollution.

Review of Research.

The purpose of this study is to analize the improving of mathematical communication skills’s students, the learning acktivities of student and student’s response at Realistic Mathematics (RME) learning.  The research is held at MTs.S Syamsudduha in 2018-2019 years, which using quasi experiment with a quantitative approach. This study used two samples, they are experiment’s class as treatment class consists of 34 students and control’s class which  not give the treatment consists of 36 students which the sample was taken in this research used the technique sampling purposive. This data was obtained with test technique and observation sheet. Data is analyzed with t test using SPSS 18, the result show that there is an increasing of mathematical communication skills of student on statistical study with the Realistic Mathematics Education (RME) learning. This shows that value of n-gain on student’s mathematical communication skill for experiment’s class is 0,49 and control’s class is 0,17 with significant 0,000 < 0,05, thats mean there is an increasing in the learning process. So, RME learning can improve student’s mathematical communication skills of  students better than students who is taught by conventional learning.

https://ojs.unimal.ac.id/ijevs/article/download/3311/2108

The Implementation of Realistic Mathematics Education Approach to Improve Students' Mathematical Communication Ability in Statistics Course

Implementing religious value can develop good attitude and behaviour. It can be implemented in various ways such as in speech, behaviour, gesturing, comprehension and assessment. This study aimed to be establish the impact of applying religious values through online Problem-Based Learning among undergraduate students. A total of 81 students were involved in the study and were divided into treatment and control groups. In order to identify the effectiveness of the module in applying values, the quasi-experimental method was used through questionnaires. The results showed that there was a significant effect on the applying all religious value in the treatment group. The finding also revealed that learning through Problem-Based Learning (PBL) can provide a different learning environment as compared to regular learning sessions. The implications of this study can directly provide an alternative in applying values to students in the higher learning institution.Â

https://ijlter.org/index.php/ijlter/article/download/1584/pdf

The Impact of Applying Religious Values through Online Problem-Based Learning among Undergraduate Students: A Quasi-Experimental Study

Implementing noble values is the process of applying noble values until it can develop or promote good attitude and behavior. Implementing noble values can be applied in various ways such as in speech, behavior, gesturing, comprehension, assessment, exemplary and content in accordance with the subject and creativity of the teacher. This study aims to see the effectiveness of applying noble values through problem-based learning. A total of 81 students were involved in the study and they were divided into treatment and control groups. In order to identify the effectiveness of the module in applying values, the quasi-experimental method was used through questionnaires. The results showed that there was a significant effect on the application of value in the treatment group. The findings also revealed that learning through PBL can provide a different learning environment as compared to regular learning sessions. The implication of this study can directly provide an alternative in applying values to the students themselves.

The Effectiveness of Implementing Noble Values through Online Problem- Based LearningAmong Students in Higher Learning Institution

The improvement of 10th students' mathematical communication skills through learning ellipse topics.

This study aims to: (1) test the effectiveness of project based learning model with scaffolding in improving mathematical communication skills, and (2) to describe mathematical communication skills and students' curiosity through the project based learning model with scaffolding. This research uses approach of mix method of sequential explanatory type. The subject of the research are the students of VIIA class of State Junior High School 18 North Halmahera academic year 2016/2017. Techniques of collecting data by using tests, observations, questionnaires and interviews. Data were analyzed by descriptive analysis and statistical test of t comparison and regression effect test. The results showed that the model of project based learning with scaffolding was effective on mathematical communication ability. Mathematical communication skills and the curiosity character of upper and middle group students are categorized as good and in the high category, while the lower group is considered poor and still in low category.
This study aims to: (1) test the effectiveness of Project Based Learning model with scaffolding in improving mathematical communication skills, and (2) to describe mathematical communication skills and students' curiosity through the Project Based Learning model with scaffolding. This research uses approach of mix method of sequential explanatory type. The subject of the research are the students of VIIA class of State Junior High School 18 North Halmahera academic year 2016/2017. Technique of collecting data by using tests, observations, questionnaires and interviews. Data were analyze by descriptive analysis and statistical test of t comparison and regression effect test. The results showed that the model of Project Based Learning with scaffolding was effective on mathematical communication ability. Mathematical communication skills and the curiosity character of upper and middle group students are categorized as good and in the high category, while the lower group is considered poor and still in low category.

Patrice Ester Paruntu

Papers

Analysis of Mathematical Communication Ability and Curiosity Through Project Based Learning Models With Scaffolding