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Journal Prisma Sains : Jurnal Pengkajian Ilmu dan Pembelajaran Matematika dan IPA IKIP Mataram

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Sciprofile linkMuhammad Zuhdi, Syahrial Ayub, Muhammad Taufik, Syamsuddin Syamsuddin, Bakti Sukrisna
Prisma Sains : Jurnal Pengkajian Ilmu dan Pembelajaran Matematika dan IPA IKIP Mataram, Volume 7, pp 121-147; doi:10.33394/j-ps.v7i2.1766

Abstract:
[Title: Moving Average Filter for Time Lapse Gravity Anomaly Separation]. Interpretation of time-lapse gravity anomaly due to fluid injection in the reservoir is difficult when it mixed with shallow source anomalies. To solve the kind of problem, anomaly separation is performed with the method of Moving Average Filter. This study was conducted to obtain an effective method to separate the gravity anomaly of shallow sources on time-lapse gravity anomaly. Trials are conducted on anomaly models derived from reservoirs with three distinct depths that are 300, 600 and 900 meters. This forward model is then mixed with gravitational anomaly from the shallow source obtained from the field data. The mixed anomaly is then separated by a Moving Average filter. Results show that Moving Average filters can separate the shallow effect from the deep source anomaly and are effective up to a depth of 900 meters. The research is also beneficial for classroom learning in the computer programming class based on Matlab.
Ita Chairun Nissa, Puji Lestari, Dian Kumala
Prisma Sains : Jurnal Pengkajian Ilmu dan Pembelajaran Matematika dan IPA IKIP Mataram, Volume 7, pp 132-137; doi:10.33394/j-ps.v7i2.1910

Abstract:
[Title: The Effect of Open-Ended Problems on Mathematics Problem toward Students' Ability in Solving Linear Program Problems]. Assessing students' abilities in solving linear program problems with simple mathematical problems cannot provide authentic assessments, so it is necessary to use mathematical problems with open-ended problems. The purpose of this study is to determine the effect of giving open-ended problems to the students' ability to solve linear program problems. This research is an experiment with a sample group of 28 students of 11th grades IPA-2 of SMA Negeri 7 Mataram. Data was collected through tests and interviews statistically analyzed both descriptively and inferentially. The mathematical tests used in this study have been tested for validity and reliability. Validity test based on expert judgment and reliability testing using product-moment correlation. Pre-test and post-test data have been tested that both are normally distributed and homogeneous. Homogeneity test uses F-test statistics and normality test uses the interpretation of skewness and kurtosis. The influence test is performed using the one-tailed statistical t-test. Student problem-solving performance was assessed using a holistic rubric. All data is processed using data analysis tools on Microsoft Excel. The results showed the average test score of students at the time of the pre-test was 39.58 which then increased at the time of the post-test to 79.76. This increase is statistically significant as evidenced by the one-tail t-test where tcount = 37.33>ttable = 1.67 at α = 0.05 which means that Ho is rejected. So it can be concluded that there is an effect of giving open-ended problems to the students' ability to solve linear program problems.
Sciprofile linkDewi Dewantara, Saiyidah Mahtari, M. Misbah, Surya Haryandi
Prisma Sains : Jurnal Pengkajian Ilmu dan Pembelajaran Matematika dan IPA IKIP Mataram, Volume 7; doi:10.33394/j-ps.v7i2.2040

Abstract:
This article is limited to only having a focus to describe the student responses of student worksheets in Biology Physics courses to improve student scientific literacy. Student worksheets are seen as a product developed, and one of the aspects reviewed is the practicality in the context of the implementation of the worksheets in the classroom. Student responses will illustrate how practicality of the learning tool, namely the student worksheet used. The student responses of student worksheets seen based on the student response questionnaire stated in the category of very good, good, enough, poor, and not good. The responses were given by 30 students who took the Biology Physics course from the Physics Education Study Program at Lambung Mangkurat University. The conclusion from the results of this study is that the Student Worksheet is very good for improving scientific literacy in Biology Physics courses. Thus, the implementation of physics biology lectures using student worksheets that are developed in a way that benefits and performance as expected by students.
Ummu Khairiyah, Silviana Nur Faizah
Prisma Sains : Jurnal Pengkajian Ilmu dan Pembelajaran Matematika dan IPA IKIP Mataram, Volume 7; doi:10.33394/j-ps.v7i2.1780

Abstract:
The objective of this study was to describe the effectiveness of the use of integrated thematic modules of Islamic values on students' critical thinking abilities. The pre-experimental research with One Group Pretest Posttest Design was conducted in this study. The sample in this study was 21 students of Class 3 Madrasah Ibtidaiyah (MI) taken with the saturated sampling technique. Theme 7, sub-theme two about energy changes are used as the material in the thematic modules used in this study. Five critical questions in the form of critical thinking ability test instruments are used to collect students' critical thinking abilities data. The five indicators of critical thinking abilities are (1) formulating the problem, (2) planning a problem-solving strategy, (3) making a decision, (4) analyzing the problem, and (5) evaluating the decision. The students 'critical thinking ability data were analyzed descriptively and statistically using paired samples test to determine the extent and differences of students' critical thinking abilities before and after learning using an integrated thematic module of Islamic values. The results showed that the critical thinking ability of students was very critical in the category of 48%, critical 24%, quite critical 19%, and less critical 10%. Students' critical thinking abilities have improved after learning using Islamic thematic integration modules (N-gain = 0.5) with the medium category. Statistical test results show that the integrated thematic module of Islamic values has a significant impact (p> 0.05) on students' critical thinking abilities. Based on these results, it can be concluded that the use of integrated thematic modules integrated integration of Islamic values is effective and has a significant impact on students' critical thinking abilities.
Yusran Khery, Baiq Asma Nufida, S. Suryati, Sri Rahayu, Miftahul Aini
Prisma Sains : Jurnal Pengkajian Ilmu dan Pembelajaran Matematika dan IPA IKIP Mataram, Volume 7; doi:10.33394/j-ps.v7i2.1771

Abstract:
[Title: Students' Understanding of the Nature of Science in Learning using the Mobile-NOS Learning Model]. The aim of this research was to evaluate the influence of the Mobile-NOS learning model implementation towards students' understanding of the nature of science. In the form of pre-experimental research, this study has been carried out by pretest-posttest non-control group design. The research subjects consisted of 27 students participating in the Basic Chemistry II course in the chemical education program of IKIP Mataram Academic Year 2018-2019 collected by saturated sampling. The Nature of Science Data was obtained using the Understanding of Nature of Science questionnaire that consists of 39 valid items with very high reliability (r = 0,802) proved by test result to 84 subjects. Data were analyzed by a paired sample t-test. The results showed significant enhancement on students' understanding of the nature of science after the Mobile-NOS model of the learning implementation. The value of t count (5.353) is greater than the t table (1.706) in the one-way hypothesis. Based on the results of the study, it can be concluded that the Mobile-NOS learning model influences students' understanding of the nature of science.
Halimah Halimah, Sutrio Sutrio, Ni Nyoman Sri Putu Verawati
Prisma Sains : Jurnal Pengkajian Ilmu dan Pembelajaran Matematika dan IPA IKIP Mataram, Volume 7; doi:10.33394/j-ps.v7i2.1751

Abstract:
[Title: The effect of double loop problem-solving model on students’ critical thinking skill]. This research aims to find out the effect of the double loop problem-solving model on students’ critical thinking skill. The type of research used was quasi-experimental with untreated control group design with pretest and posttest. The population was all students of grade X in senior high school 2 of Aikmel with the amount of 123 students. The sampling technique used purposive sampling, considering that students have already obtained the same physics subject matter that is harmonic vibration and mid-terms test score were almost the same so that it has been selected sample X MIA 2 consisting of 31 students as the experimental class and sample X MIA 3 consisting of 28 students as the controlled class. The experimental class was treated with double loop problem-solving model while the controlled class was treated with direct instruction. The instrument used was the critical thinking skill essay test consisting of 10 items in which each indicator was measured with 2 items. The measured indicators are interpretation, analysis, evaluation, inference and explanation. Instrument test results showed the 10 items can be used in the research (valid and reliable). The research hypothesis was tested using t-test polled variance. Data analysis showed that > which means that was rejected and was accepted. Thus, it can be concluded that there is an effect of double loop problem-solving model on students’ critical thinking skill.
Husamah Husamah, Atok Miftachul Hudha, Zhangswe Ariandina Putri
Prisma Sains : Jurnal Pengkajian Ilmu dan Pembelajaran Matematika dan IPA IKIP Mataram, Volume 7; doi:10.33394/j-ps.v7i2.1997

Abstract:
HOTS must be owned by students, and need to be assessed authentically. This study aims to 1) analyze the efforts of high school teachers in Malang in developing a HOTS-authentic assessment in tissue structure materials; and 2) Analyzing the pre-validation final draft of the HOTS-authentic assessment model on tissue structure materials. The research method used is R&D. However, in line with the objectives, this publication only focuses on define, design, and develop. The develop part is only on the product (a pre-validation final draft). The research was carried out in state high schools in Malang (SSHS 1, 3, 4, 7, and 8). The study was conducted in April-November 2018. The subjects were 2 teachers from each school (there was 10 teachers). Research data and findings were analyzed by descriptive analytic qualitative. The results show that teachers have included or considered HOTS aspects in lesson plans. However, the development of HOTS aspects and their assessment were not able to be carried out maximally. In practice, in a greater percentage, teachers use lesson plans without modification or making adjustments to student conditions. They modify and incorporate the HOTS aspect if there is an opportunity to discuss with other parties who guide them. Therefore, the existence of this model is very needed. The pre-validation final draft is essentially in the form of concepts that can be linked to the MGMP activities, and various related parties, in an interactive and cyclical relationship so as to form a model of professional development of biology teachers.
Nuralam Nuralam, Muhammad Yani
Prisma Sains : Jurnal Pengkajian Ilmu dan Pembelajaran Matematika dan IPA IKIP Mataram, Volume 7; doi:10.33394/j-ps.v7i2.1964

Abstract:
The emphasis of mathematics learning, especially students' communication skills, needs to be considered from gender equality in solving mathematical problems. This study aims to describe: 1) the potential mathematical communication skills of students based on gender; 2) gender equality in communicating mathematical problem solving; and 3) the suitability of the form of the model or the applied form to develop students' mathematical communication skills based on gender at school. This research is a descriptive qualitative research conducted on all junior high school students in Langsa with a purposive sampling technique of 283 students. The data were collected through mathematical communication skills and questionnaire tests which were analyzed descriptively using the concept of Miles and Huberman. The results showed that: 1) mathematical communication skills of female students were better than male students in solving mathematical problems; 2) mathematical communication skills of male students are better in suburban schools and female students are better in downtown schools; and 3) learning implementation plans are still limited in emphasizing mathematical communication skills and learning tends to be cooperative and individual. It is recommended that learning plans refer to developing mathematical communication skills that pay attention to students' gender equality in order to optimize mathematical problem solving.
Cecep Cecep, Anwar Mutaqin, Sciprofile linkAan Subhan Pamungkas
Prisma Sains : Jurnal Pengkajian Ilmu dan Pembelajaran Matematika dan IPA IKIP Mataram, Volume 7, pp 100-111; doi:10.33394/j-ps.v0i0.1761

Abstract:
[Title: Development of Quick Math Module Based on Mobile Learning as a Support for Mathematics Learning in High School]. Learning resources is a very important component of the learning process. One of the learning resources that can be utilized independently is the module. The purpose of this research is to develop the Quick Math module and evaluate the feasibility of the module. The development model used is the ADDIE model namely analysis, design, development, implementation and evaluation. The subject in this study was 15 students consisting of low, moderate and high-performance level and 6 teachers at SMA Negeri 2 Kota Serang. The instruments used to collect data in this research consist of expert validation questionnaire (content and media), Teacher and student response questionnaire. Based on data analysis results, obtained the score of the content material about 86.4% with a very feasible category, media experts about 88% with very feasible category, teacher response of 92% with very good category and student response of 88.39% with the very good category. Based on the data analysis it can be concluded that the Quick Math module is developed feasible to be used as a learning resource in accordance with the demands of the 2013 curriculum. This app makes it easy for students to access flexible learning resources wherever and whenever
Prisma Sains : Jurnal Pengkajian Ilmu dan Pembelajaran Matematika dan IPA IKIP Mataram, Volume 7, pp 91-99; doi:10.33394/j-ps.v7i1.1424

Abstract:
Improving Students' Mathematical Understanding Ability through Formulate-Share-Listen-Create (FSLC) Cooperative Learning. The aim of this research is to examine and to describe improvement in students' mathematical understanding ability using cooperative learning of Formulate-Share-Listen-Create (FSLC) type. The study was conducted at the Mathematics Education Study Program of Galuh University on Level I students of the 2018/2019 Academic Year. The research method used is Quasi-Experiment. To get the research data, the instrument was used in the form of a test of mathematical understanding ability. Data analysis was performed on data n-gain to see the difference improvement in mathematical understanding ability. The results of the research showed that the improvement in students' mathematical understanding ability between students using cooperative learning of Formulate-Share-Listen-Create (FSLC) type was better than students who used conventional learning.
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