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Jurnal Pijar MIPA
Published by Universitas Mataram
ISSN : 19071744     EISSN : 24601500     DOI : -
Core Subject : Science, Education,
Biochemistry, Genetics & Molecular Biology Chemistry Mathematics Physics
Jurnal Pijar MIPA (e-ISSN: 2460-1500 & p-ISSN: 1907-1744) is an open-access scientific periodical journal published by the Department of Mathematics and Science Education, Faculty of Teacher Training and Education, University of Mataram. Jurnal Pijar MIPA publishes original articles on current issues and trends in mathematics-science-science education studies. In addition, this journal addresses issues concerning environmental education and environmental science. The journal scopes are: a. Physics and Physics Education b. Chemistry and Chemistry Education c. Biology and Biology Education d. Natural Science and Science Education e. Mathematics and Mathematics Education f. Environmental and Environmental Education
Arjuna Subject : Umum - Umum
Articles 30 Documents
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Search results for , issue "Vol. 19 No. 1 (2024): January 2024" : 30 Documents clear
Analysis of Students Creative Thinking Abilities Through Project-Based Learning in Environmental Knowledge Courses Haswan, Haswan; Ridzal, Dewi Asriani; Rosnawati, Veni
Jurnal Pijar Mipa Vol. 19 No. 1 (2024): January 2024
Publisher : Department of Mathematics and Science Education, Faculty of Teacher Training and Education, University of Mataram. Jurnal Pijar MIPA colaborates with Perkumpulan Pendidik IPA Indonesia Wilayah Nusa Tenggara Barat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jpm.v19i1.6328

Abstract

The competency of creative thinking for students is very important in the era of global competition because of the level of complexity. This is because creative thinking skills are included in the six competencies that must be possessed in competition in the 21st century. This is because creative thinking skills are included in the six competencies that must be possessed in facing competition in the 21st century. Project-based learning is one method that can be used to train and improve students' creative thinking skills. This research aims to analyze students' critical thinking abilities through a project-based learning model in environmental knowledge courses. The method used in this research is descriptive. The research subjects consisted of 38 participants. The instrument used in this research is an essay test, and four indicators of creative thinking skills are considered: fluency thinking, flexible thinking, original thinking, and elaboration ability. The data analysis technique used is descriptive. The research results show that students' creative thinking abilities in environmental knowledge courses are in the high (creative) category, with a total score for all indicators is 74,75. It indicates that project-based learning is an effective strategy adapted to train and improve students' creative thinking abilities. Project-based learning is an innovative student-centered learning method where students can work autonomously to construct their learning. This is thought to cause students' creative thinking ability scores in environmental knowledge courses to be in the high category.
Development of Student Worksheets Assisted by Powtoon Media on Elasticity and Hooke's Law to Improve Student Learning Outcomes Magrib, Yunisa Sy; Supartin; Jahja, Mohammad
Jurnal Pijar Mipa Vol. 19 No. 1 (2024): January 2024
Publisher : Department of Mathematics and Science Education, Faculty of Teacher Training and Education, University of Mataram. Jurnal Pijar MIPA colaborates with Perkumpulan Pendidik IPA Indonesia Wilayah Nusa Tenggara Barat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jpm.v19i1.6331

Abstract

This research is a type of development research (Research and Development). with the aim of knowing the quality (Validity, Practicality, and effectiveness) of student worksheets assisted by Powtoon media on the material Elasticity and Hooke's Law. This research is a type of development research that refers to 4-D Model development research consisting of four development stages, namely Defining, Designing, Developing, and Disseminating. After being validated by 3 validators, a limited trial was carried out by 36 class XI participants at SMA Negeri 1 Kabila. Data collection techniques in this research used expert validation sheets, teacher and student response questionnaires, and student learning outcome tests. The research results show that validation is in the "valid" category. The practicality of students' worksheets assisted by Powtoon media can be seen from the results of the implementation of learning in class, and teachers and students show the category "very well implemented." It can be concluded that the worksheet for students developed with the help of Powtoon media has met the criteria of being valid, practical, and effective so that it is suitable for use in physics learning at school. The difference between this research and research conducted by researchers lies in the media used, the materials used, and the location studied. Another difference is that researchers only use 3 stages in the four-D model, namely define, design, and develop.
Analysis of the Need for Developing an Ethnoscience-Based Module on Plant Material Biology (Plantae) to Improving Learning Outcomes Anattri, Lega; Yelianti, Upik; Subagyo, Agus; Falani, Ilham
Jurnal Pijar Mipa Vol. 19 No. 1 (2024): January 2024
Publisher : Department of Mathematics and Science Education, Faculty of Teacher Training and Education, University of Mataram. Jurnal Pijar MIPA colaborates with Perkumpulan Pendidik IPA Indonesia Wilayah Nusa Tenggara Barat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jpm.v19i1.6378

Abstract

The development of ethnoscience-based modules in biology learning, especially on plant material (Plantae), is an essential aspect of efforts to improve learning outcomes. By combining ethnographic and scientific approaches, this module is expected to consider students' cultural context better so as to increase their engagement and understanding of the material. This research aims to analyze the need to develop ethnoscience-based modules, and the importance of analyzing module needs today as an effort to improve biology learning outcomes on plant material (Plantae). This research uses qualitative research with a descriptive approach. The research method used is development research with stages that include identifying needs, planning, development, testing, and evaluation. The sampling technique was carried out using purposive sampling, with a sample of 60 students, and only 10 students, as well as 3 biology subject teachers at SMAN 1 Sungai Penuh, were selected for interviews. Data was collected through observation, field studies, documentation, and interviews and analyzed descriptively. The needs identification results show that there is a high need for the development of ethnoscience-based modules to strengthen students' understanding of plant material. The module is designed by considering the local cultural context and traditional knowledge, which can increase students' absorption of learning material. Module trials were carried out involving students as research subjects, and the results showed a significant increase in understanding of plant material. In addition, the positive response from students and teachers to the module confirms its effectiveness in improving biology learning outcomes. The newest thing in this research is a module developed with elements of ethnoscience by combining scientific concepts with scientific concepts that exist in society so that they can be expressed in a module. So, it can be concluded that the analysis of module needs is indeed critical and necessary in biology learning, especially plant material, which teachers and students can use.
Utilization of Hydroxyapatite-Chitosan-Bay Leaf Oil (Syzygium Polyanthum W.) as Antibacterial for Streptococcus Mutants Adriani, Sherly Wahyu; Cahyaningrum, Sari Edi
Jurnal Pijar Mipa Vol. 19 No. 1 (2024): January 2024
Publisher : Department of Mathematics and Science Education, Faculty of Teacher Training and Education, University of Mataram. Jurnal Pijar MIPA colaborates with Perkumpulan Pendidik IPA Indonesia Wilayah Nusa Tenggara Barat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jpm.v19i1.6379

Abstract

Dental caries is a disease that can damage hard tooth tissue caused by the activity of Streptococcus mutans bacteria. Streptococcus mutans bacteria are the leading cause of dental caries disease. Efforts to prevent dental caries can be made using toothpaste, but toothpaste cannot reach areas that are difficult to reach with a toothbrush. Another method that can be used is mouthwash. This study was developed with the active ingredient compound HAp-chitosan-bay leaf oil in mouthwash to have an antimicrobial effect to prevent dental caries. This study aimed to determine the chemical physics characteristics and antibacterial activity of mouthwash preparations based on hydroxyapatite-chitosan-bay leaf oil. In this study, the active ingredients hydroxyapatite-chitosan-bay leaf oil was used with variations in the concentration of bay leaf oil, namely 0.5, 1.5, and 2.5 %. FT-IR characterization showed the presence of OH, N-H, CH, C=O, C=C, C-O, and PO43- functional groups. The pH test on the mouthwash showed compliance with the quality standard for mouthwash pH, which has a pH range of 5-7. The homogeneity test results in the mouthwash preparation showed no sediment or separation. Antibacterial activity testing showed that the HAp-chitosan-bay leaf oil mouthwash preparation inhibited the growth of Streptococcus mutans bacteria. The inhibition zone in the strong category with an average of 12.75 mm was shown in the HAp-chitosan-bay leaf oil mouthwash preparation formulation with a concentration of 2.5% bay leaf oil with the addition of sodium lauryl sulfate (SLS).
The Activity Test of Dewandaru Fruit (Eeugenia uniflora L.) in Trachea of Male Mice (Mus musculus L.) Which Exposed to Cigarette Smoke Antari, Ni Wayan Sukma
Jurnal Pijar Mipa Vol. 19 No. 1 (2024): January 2024
Publisher : Department of Mathematics and Science Education, Faculty of Teacher Training and Education, University of Mataram. Jurnal Pijar MIPA colaborates with Perkumpulan Pendidik IPA Indonesia Wilayah Nusa Tenggara Barat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jpm.v19i1.6385

Abstract

Smoking has a serious negative impact on health because cigarettes contain harmful chemical compounds. To combat these negative effects, using natural antioxidants such as Dewadaru fruit has become the research focus. Dewandaru contains high antioxidants, namely flavonoids, anthocyanins, saponins, and tannins, which can fight free radicals in the body. The trachea is an air channel between the larynx and bronchi. To identify the activity test of dewandaru fruit (Eugenia uniflora L.) in the trachea of male mice (Mus musculus L.) exposed to cigarette smoke. This study employed true experimental di laboratory with post-test only control group design, probability sampling. The data were analyzed by using Shapiro Wilk and followed by the ANOVA test and Duncan's test. The finding showed that administering a Dewadaru fruit filter could maintain the histopathology of the male mice trachea exposed to cigarette smoke (P<0.05). Dewandaru fruit filter (Eugenia uniflora L.) has activity in the trachea exposed to cigarette smoke among male mice. Using a Dewadaru fruit filter also affects the presence of cilia, goblet cells, epithelial height, and lumen diameter in the trachea of male mice.
Student Preferences in Choosing Chemistry as an Elective Course in Phase F of the Merdeka Curriculum Wella, Wella Aulia Putri; Andika, Andika Prasetya; Desi, Desi Handayani; Muktiningsih, Muktiningsih; Ridwan, Achmad
Jurnal Pijar Mipa Vol. 19 No. 1 (2024): January 2024
Publisher : Department of Mathematics and Science Education, Faculty of Teacher Training and Education, University of Mataram. Jurnal Pijar MIPA colaborates with Perkumpulan Pendidik IPA Indonesia Wilayah Nusa Tenggara Barat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jpm.v19i1.6386

Abstract

The Merdeka Curriculum differs from the 2013 curriculum regarding elective subjects. The Merdeka Curriculum has no more specialization groups such as science, social studies or language. Merdeka Curriculum allows students to choose elective subjects that suit their interests, talents and abilities when entering phase F at the Senior High School level. Schools must open at least seven elective subjects adjusted to the characteristics and human resources owned by the school. Chemistry is one of the elective subjects that students can choose in Phase F of the Merdeka Curriculum. This study aims to determine the factors that make students choose chemistry as their elective subject in Phase F of the Merdeka Curriculum. This research was conducted at SMA Negeri 17 Jakarta in the 2023-2024 academic year. The research subjects were students in chemistry specialization classes: XI-A Chemistry and XI-B Chemistry. This research uses a qualitative method with a case study research type. Sampling in this study used a purposive sampling technique with certain considerations. Sampling in this study used a purposive sampling technique with certain considerations. Data collection techniques were carried out through interviews with nine students in chemistry specialization classes, and the data obtained were analyzed qualitatively with stages, namely data reduction, conclusions, and verification. The results showed that intrinsic and extrinsic factors influence students' tendency to choose chemistry as their chosen subject. Intrinsic factors include interest in chemistry, academic value, and future study or career plans. Intrinsic factors influencing students most are future study or career plans and individual interest in chemistry. In contrast, extrinsic factors include family factors, friend factors, teacher factors, and support from schools. The extrinsic factor that most influences students is the teacher factor.
The Effect of Substitution of LDPE Plastic, Coconut Fiber, and Seashell as Mixed Raw Materials for Paving Blocks Ratnawati, Kania; Nisah, Firda Ainun; Azizie, Yona Tasya
Jurnal Pijar Mipa Vol. 19 No. 1 (2024): January 2024
Publisher : Department of Mathematics and Science Education, Faculty of Teacher Training and Education, University of Mataram. Jurnal Pijar MIPA colaborates with Perkumpulan Pendidik IPA Indonesia Wilayah Nusa Tenggara Barat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jpm.v19i1.6392

Abstract

Human life is inseparable from the use of plastic in everyday life. LDPE plastic significantly impacts the environment as it is difficult to decompose naturally. On the other hand, natural waste such as seashells and coconut fiber are often found without further processing needs to recycle. To overcome this issue, there must be an effort to recycle these wastes. This research aims to determine the substitution effects of recycled products (LDPE plastic, seashells, coconut fiber) in producing paving blocks. The paving block is made with 2 main variations: a mixture of LDPE plastic and seashells (X1 and X2) and a mixture of LDPE plastic and coconut fiber (Y1 and Y2). The results show that paving block X has a higher compressive strength than paving block Y. The best paving block mixture is variation X2, which has a maximum load of 11 kN, a compressive strength of 46.797 kgf/cm2, and a maximum water absorption capacity of 4,8 %. The compressive strength values from the variations of the produced paving blocks are below the quality requirements set by SNI03-060292-1996. However, producing paving blocks with LDPE plastic, seashells, and coconut fiber can positively address waste issues in the Karawang Regency community through recycling practices.
Effects of Discovery Learning Model Towards Science Process Skills and Learning Retention Olvyana, Annisa; Ermiana, Ida; Astria, Fitri Puji
Jurnal Pijar Mipa Vol. 19 No. 1 (2024): January 2024
Publisher : Department of Mathematics and Science Education, Faculty of Teacher Training and Education, University of Mataram. Jurnal Pijar MIPA colaborates with Perkumpulan Pendidik IPA Indonesia Wilayah Nusa Tenggara Barat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jpm.v19i1.6394

Abstract

This research aims to determine the effect of the Discovery Learning learning model on science process skills and student learning retention. The population in this study were all 4th-grade students at SDN 6 Cakranegara, totalling 66 students. Samples were taken using a non-probability sampling technique with a saturated sampling type. This research uses a Pretest-Posttest Nonequivalent Control Group Design research design. The instruments used are observation sheets to measure science process skills and multiple-choice test questions to measure learning retention. Analysis in this study used the One-Way ANOVA test with the help of SPSS 21.0 for Windows. The experimental class's average science process skill score was greater than the control class at 77.95%, as was student learning retention at 65%. The statistical analysis results show that the significance value of the influence of treatment on science process skills is 0.000, while the significance value of the influence of treatment on student learning retention is 0.000. So, it can be concluded that H0 is rejected and Ha is accepted, which means a) the discovery learning model influences the science process skills of class IV students, and b) the discovery learning model influences the learning retention of class IV students.
Analysis of Technological Pedagogical Content Knowledge (TPACK) Ability for Prospective Chemistry Teacher Students and Chemistry Teachers: A Literature Review Raihanah, Dinnah; Putri, Nabilah Mustika; Fatmawati, Tri Kurnia; Nurjayadi, Muktiningsih
Jurnal Pijar Mipa Vol. 19 No. 1 (2024): January 2024
Publisher : Department of Mathematics and Science Education, Faculty of Teacher Training and Education, University of Mataram. Jurnal Pijar MIPA colaborates with Perkumpulan Pendidik IPA Indonesia Wilayah Nusa Tenggara Barat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jpm.v19i1.6395

Abstract

Mastering ICT is a prerequisite for teachers in the 21st century, and this is consistent with the TPACK framework that a teacher or aspiring teacher needs to be equipped with. Technological, pedagogical, and content knowledge (TPACK) is a conceptual framework that combines components that include three types of knowledge that teachers need to master, namely technological, pedagogical, and content knowledge. TPACK is a framework that seeks understanding the relationship between pedagogical and technological knowledge. In TPACK, teachers' knowledge of integrating technology into learning makes learning effective and efficient. This study aimed to observe the Technological Pedagogical Content Knowledge (TPACK) ability of prospective chemistry teachers and chemistry teachers. The research method used a literature study in the form of an analysis of various literature derived from national and international articles in accordance with the research objectives, namely 33 articles on the ability of Technological Pedagogical Content Knowledge (TPACK) of prospective chemistry teachers and chemistry teachers. The results showed that the components of TK, PK, TPK, TCK, and TPACK owned by prospective chemistry teachers and chemistry teachers were in the sufficient category. The TPACK abilities of chemistry teacher candidates and chemistry teachers still need to be improved in several aspects of content mastery, pedagogy, and technology. Developing TPACK abilities requires a long process to acquire new sources of skills and knowledge needed to form professional teachers.
Optimization of Nursing Scheduling in Emergency by Using Genetic Algorithm Hasibuan, Mhd Panerangan; Cipta, Hendra
Jurnal Pijar Mipa Vol. 19 No. 1 (2024): January 2024
Publisher : Department of Mathematics and Science Education, Faculty of Teacher Training and Education, University of Mataram. Jurnal Pijar MIPA colaborates with Perkumpulan Pendidik IPA Indonesia Wilayah Nusa Tenggara Barat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jpm.v19i1.6412

Abstract

Scheduling nurse duty is one of the problems in health organizations that is quite complicated to solve. Starting from the uncertain number of patients, serious patient illnesses, characteristics of organizational groups, requests for nurses to take time off, and the qualifications and specialization of the nurses themselves are why scheduling in the ER is difficult to optimize. The same thing is being experienced by one of the health institutions, RSUD Dr. Pirngadi. Preparing schedules or determining the number of nurses on duty is still done manually, resulting in a lack of optimization in scheduling and the number of nurses who must be on duty, especially in the emergency department. In solving this problem, an appropriate method is needed so that the process of scheduling and optimizing the number of nurses can be formed properly. This research applies the Genetic Algorithm in optimal emergency department (IGD) nurse duty scheduling. Genetic algorithms, also called search algorithms, are based on the mechanisms of natural selection and genetics. Genetic algorithms are one of the appropriate methods for solving complex optimization problems. This method is good enough to optimize shift scheduling for the Emergency Room Nursing Service in a Hospital. This Genetic Algorithm can be a solution to multi-criteria and multi-objective problems modeled using biological and evolutionary processes. So, the concept of this method can be applied in optimizing the Nursing Service schedule. The results of calculations using the Genetic Algorithm show quite significant comparisons, including several nurses losing their positions and being eliminated by mutation because they could not compete with several other strong individuals.

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