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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. 21 No. 2 (2026)" : 30 Documents clear
Effect of Problem-Based Learning on the Student Problem-Solving Skills Utami, Nurvita Putri; Wulandari, Fitria
Jurnal Pijar MIPA Vol. 21 No. 2 (2026)
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.v21i2.9405

Abstract

Science learning in elementary schools is expected to not only provide conceptual understanding but also foster students' ability to solve real-life problems through active learning. This study was conducted to measure the effect of Problem-Based Learning on the problem-solving ability of fifth-grade students of SDN Krembung 1 in learning science on the human respiratory system. The One Group Pretest-Posttest research design was used to test the instrument's validity and reliability, assess the normality and homogeneity of the pretest and posttest results, and determine the influence using the T Test. The instrument developed by the researcher was based on the problem-solving indicators developed by George Polya: (1) Understanding the problem, (2) Planning Problem Solving, (3) Implementing the problem-solving plan, and (4) Checking the Process and Results of problem solving. Problem-Based Learning is applied through five stages, namely: (1) Orientation to the problem, (2) organising students, (3) guiding the investigation, (4) developing and presenting results, and (5) analysing and evaluating the problem-solving process. The pretest was carried out first, followed by the application of the problem-based learning model, and then the posttest. The average pretest score was 79 (68–89), and the average posttest score was 90 (75–100). The results of the paired sample t-test analysis showed a significance value (2-tailed) of 0.000, which means there is a significant difference between the pretest and posttest results. These findings suggest that integrating Problem-Based Learning into classroom instruction not only enhances students’ problem-solving abilities but also aligns well with the goals of competency-based curricula such as the Merdeka Curriculum, which emphasize active learning and critical thinking. Thus, Problem-Based Learning is effective in improving students' problem-solving abilities.
Halal Science Authentication and Functional Characterization of Local Lampung Tuber Polysaccharides as Emulsifier Substitution in the Food Industry Anggraini, Welly
Jurnal Pijar MIPA Vol. 21 No. 2 (2026)
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.v21i2.11526

Abstract

As the 2026 deadline for mandatory halal certification in Indonesia approaches, concerns regarding the halal status of imported emulsifiers, particularly E471 (mono- and diglycerides of fatty acids), remain a significant issue. The primary problem lies in halal critical points that are extremely difficult to trace: these materials may be derived from hydrolysed animal fats (bovine or porcine), not slaughtered according to Islamic law. This research aims to explore the functional properties of polysaccharides from local Lampung tubers, namely Porang and Gembili, as authenticated halal emulsifier substitutes. The study employed a Factorial Completely Randomized Design (CRD), testing tuber sources and concentration levels of 1%, 3%, and 5%. Polysaccharides were extracted via freeze-drying and subsequently characterized using physicochemical analysis and FTIR spectroscopy. Based on the results, 3% Porang polysaccharide produced a low Creaming Index (CI) of 3.1 ± 0.3% after 14 days and a high viscosity of 45,200 cP. Statistically, this stability did not differ significantly (p > 0.05) from the commercial E471 standard in its capacity to form an effective interfacial layer that prevents coalescence. The material was authenticated by the absence of a carbonyl absorption peak at 1745 cm⁻¹ in its FTIR spectrum, as part of a molecular halal authentication assessment. This provides scientific proof that the isolates are not contaminated by animal fats or questionable substances. This study concludes that Porang glucomannan and Gembili mucilage are strategic "Halal-by-Design" alternatives that can support national food industry independence and assist business actors, particularly MSMEs, in meeting the mandatory halal certification by 2026.
DNA and Protein-Based Methods for Halal Gelatin Authentication: A Review Azizah, Nurul; Anggraini, Welly
Jurnal Pijar MIPA Vol. 21 No. 2 (2026)
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.v21i2.11539

Abstract

Tracing and tracking halal has emerged as an imperative for Muslim consumers worldwide to ensure that the meat-based products comply with Islamic law and food safety standards. The most challenging technical issue in halal authentication concerns products derived from gelatin. Because extreme manufacturing processes, such as high-temperature and chemical processing, damage the physical and molecular architecture of raw materials, detection is difficult. Objective: This study builds on a systematic literature review with a PRISMA protocol to map DNA- and protein-based detection techniques and compare their efficiencies. Methods: A systematic search was conducted across major databases, including Google Scholar, ScienceDirect, and ResearchGate, for peer-reviewed articles published from 2015 to 2025. From this process, 25 studies with high-impact potential were selected for thematic analysis. The results show that DNA-based methods dominate the literature (80%). Despite this, quantitative PCR (qPCR) remains the "gold standard" owing to its specificity and sensitivity. However, the findings reveal that droplet digital PCR (ddPCR) can detect highly degraded DNA in complex matrices, whereas traditional methods have shown limitations for detecting DNA in pharmaceutical capsules and cosmetics. On the other hand, protein-based methods such as ELISA remain useful for fast, economical screening, but sensitivity is substantially reduced at higher processing temperatures. In conclusion, this study highlights the importance of combining IPC and multi-method frameworks to limit false negatives. The findings of this study are substantial enough to provide the fundamentals for the alternative scaling-up of halal assurance systems, especially in the form of guidelines that provide a scientific framework for strengthening a more reliable authentication system for processed gelatin products, at least within Indonesia.
Effect of Guided Inquiry Learning Model on Students Creative Thinking Skills in the Classification of Living Things Material Saragih, Hanna Turena; Simatupang, Halim; Pohan, Muflihani
Jurnal Pijar MIPA Vol. 21 No. 2 (2026)
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.v21i2.11642

Abstract

21st-century skills include several important components, including creative thinking. One skill that needs to be developed through the learning process in schools is creative thinking, as it helps students find solutions to problems and independently construct conceptual understanding. This study aims to determine the effect of the guided inquiry learning model on students’ creative thinking ability in the topic of classification of living organisms. This research is a quantitative study using a quasi-experimental design with a nonequivalent control group. The study population consisted of all seventh-grade students at SMP Negeri 17 Medan. The research sample was selected using a cluster sampling technique and consisted of two classes: class VII-7, the experimental class taught using the guided inquiry learning model, and class VII-9, the control class taught using direct instruction. The research instrument used was a test of creative thinking ability. The data were analyzed by testing the hypothesis using an Independent Samples t-test and normalized gain (N-Gain) analysis. The study's results indicate that the guided inquiry learning model affects students’ creative thinking abilities. The experimental class obtained an average posttest score of 81.56 with an N-Gain value of 63.92, which falls into the quite effective category, while the control class obtained an average posttest score of 69.38 with an N-Gain value of 44.28, which falls into the quite effective category. These results indicate that students’ creative thinking ability, when taught using the guided inquiry learning model, is better than that of students taught using conventional learning methods.
Development of Live Worksheets Based on Problem-Based Learning to Improve Science Critical Thinking Skills Sari, Fitri Kartika; Andriani, Aldina Eka
Jurnal Pijar MIPA Vol. 21 No. 2 (2026)
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.v21i2.11695

Abstract

Optimizing the use of student worksheets in science learning is a strategic effort to improve the quality of the learning process and foster students' critical thinking skills. This study aims to describe the design, determine the feasibility, and examine the effectiveness of Live Worksheets based on Problem Based Learning in improving the critical thinking skills of fifth-grade students at SD Negeri Jatibarang 03 on the topic of the human respiratory system in improving the critical thinking skills of fifth-grade students at SD Negeri Jatibarang 03 on the topic of the human respiratory system. This research employed a Research & Development (R&D) method using the ADDIE development model, which consists of analyze, design, development, implementation, and evaluation stages. The research subjects were 20 fifth-grade students. Data collection techniques included tests (pre-test and post-test) and non-test methods such as observation, interviews, questionnaires, and documentation. Data were analyzed qualitatively and quantitatively using normality tests, paired sample t-tests, and N-gain analysis. The Live Worksheets based on Problem-Based Learning were developed in Canva and accessed through the Live Worksheets platform. The product consists of a cover page, group identity page, general information page, core learning materials with problem-based questions, and a final page containing reinforcement materials and developer profiles. The feasibility results indicated very feasible criteria, with validation percentages of 92% from material experts and 94% from media experts, and positive responses from 90% of teachers and students. The effectiveness results showed a significant increase in scores from 47.5 to 71.25, a Sig. (2-tailed) value of 0.000 < 0.05, a 22% improvement in critical thinking skills, and an N-gain of 0.4741 (moderate category). Thus, the Live Worksheets based on Problem-Based Learning were deemed successfully developed, feasible, and effective in improving students' critical thinking skills in science.
Development of Interactive Web Learning Media Based on Problem-Based Learning on the Topic of Work Energy and Simple Machines for Junior High School Students Triana, Komang Regina; Erlina, Nia; Sarini, Putri
Jurnal Pijar MIPA Vol. 21 No. 2 (2026)
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.v21i2.11709

Abstract

The rapid development of digital technology in education requires innovative learning media to support students’ problem-solving skills in science learning. This study aims to develop an interactive web learning media based on problem-based learning on the topic of work, energy, and simple machines for junior high school students. This research employed a Research and Development (R&D) approach using the ADDIE model, focusing solely on the development stage. The data were collected using validation questionnaires (content, media, and language) and practicality questionnaires for teachers and students. The validation data were analyzed using the Gregory validity coefficient, while the practicality data were analyzed using descriptive statistical analysis. The validity test was conducted by two experts in content, media, and language relevant to their respective fields. The practicality test involved three science teachers and twelve students of SMP Negeri 1 Seririt. The results showed that the KVG for content validity was 0.95, while the media and language validity reached 1.00, both categorized as very high validity. The teacher's practicality score was 100, and the student's practicality score was 44.66, both categorized as very practical. These findings indicate that the developed interactive web-based learning media is valid and practical, and has the potential to support the development of students’ problem-solving skills in learning the concepts of work, energy, and simple machines.
Diversity of Butterflies (Lepidoptera) in the Bonsai Park, Tapan Village, Kedungwaru District, Tulungagung Regency Nuraini, Urmila Yuniska; Maharani, Hamidha Septa
Jurnal Pijar MIPA Vol. 21 No. 2 (2026)
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.v21i2.11713

Abstract

Butterflies are insects that can inhabit various types of habitats, but differences in habitat conditions may influence their abundance and species diversity. Bonsai Park, located in Tapan Village, Kedungwaru District, Tulungagung Regency, East Java, is a tourist area with vegetation that potentially supports butterfly populations. However, scientific information on butterfly diversity in this area remains limited. The lack of such data may hinder efforts to understand local biodiversity conditions and opportunities for pollinator conservation. Therefore, this study aimed to identify butterfly species and analyze their diversity and relative abundance in Bonsai Park, Tapan Village. This research employed a quantitative descriptive approach using the transect method. Sampling was conducted along three transect lines, each approximately 100 m in length, with an observation width of about 5 m on both sides of the transect. Sampling was carried out between 08.00–11.00 WIB using an insect net with the sweeping technique. Sampling was repeated four times at weekly intervals during the research period. Data analysis included the Shannon–Wiener diversity index (H’) and relative abundance. The results showed that 7 butterfly species, totalling 21 individuals, were recorded, belonging to 4 families: Nymphalidae, Lycaenidae, Pieridae, and Papilionidae. The identified species were Euploea crameri, Junonia atlites, Acraea terpsicore, Danaus chrysippus, Tajuria cippus, Leptosia nina, and Papilio demoleus. The Shannon–Wiener diversity index (H’) value of 1.746 indicates a moderate level of diversity, with the highest abundance found in Junonia atlites. These findings suggest that Bonsai Park can still support several butterfly species as part of local biodiversity. Ecological management strategies, such as planting host plants for larvae, increasing the number of flowering plants as nectar sources, and enhancing vegetation heterogeneity, are recommended to improve habitat quality and support butterfly conservation in the area.
Development of Digital Flashcard Learning Media Assisted by Quizlet Based on Contextual Teaching and Learning (CTL) Oriented to Critical Thinking Skills on Electrolyte and Non-Electrolyte Solution Material Manalu, Riris Desinta Marsaulina; Syahri, Wilda; Hasibuan, Muhammad Haris Effendi; Haryanto, Haryanto; Zurweni, Zurweni
Jurnal Pijar MIPA Vol. 21 No. 2 (2026)
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.v21i2.11758

Abstract

Chemistry learning on electrolyte and non-electrolyte solutions is still abstract and difficult to visualize, so it requires digital learning media that can encourage active student involvement in critical thinking. This study aims to develop digital flashcard learning media assisted by Quizlet, based on Contextual Teaching and Learning (CTL), that are oriented towards critical thinking skills, to assess the feasibility of the media, teacher assessment, student responses, and to provide an overview of students' critical thinking skills after using the developed media. This research is a research and development (R&D) with the Lee & Owens model, which includes the stages of Analysis, Design, Development, Implementation, and Evaluation. The research subjects were grade XII high school students. The research instruments included validation sheets from material experts and media experts, teacher assessment questionnaires, student response questionnaires, and evaluation tests. Data were analyzed descriptively, quantitatively, and qualitatively. The results showed that material expert validation increased from 85% to 97% after revision, media expert validation increased by 90%, and teacher assessment increased by 90%, with a very feasible category. Student responses in the one-to-one trial were 86.6%, and in the small group trial were 86.25%, categorized as very good. The evaluation results, at 82.27%, indicate that students' understanding is in the very good category. Therefore, the digital flashcard learning media, supported by Quizlet and based on CTL, is highly suitable as an alternative learning medium for high school chemistry and has the potential to foster students' critical thinking skills.
The Effectiveness of Field Learning Based on Megapodius reinwardt Ecotourism in Improving the Critical Thinking Skills of Biology Education Students Yamin, M.; Jufri, A Wahab; Gunawan, Gunawan; Andriyan, Ade
Jurnal Pijar MIPA Vol. 21 No. 2 (2026)
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.v21i2.11760

Abstract

The development of critical thinking skills is a strategic agenda in biology education, particularly in preparing prospective teachers capable of integrating scientific analysis with real ecological contexts. However, learning that remains oriented towards classrooms and limited laboratories has not fully strengthened students' evaluative and argumentative abilities. Field learning based on M. reinwardt ecotourism offers a contextual approach that places students in authentic observation and analysis situations. This study aims to test the effectiveness of ecotourism-based field learning in improving the critical thinking skills (CTS) of Biology Education students. The study used a quasi-experimental pretest–posttest control-group design. The experimental group implemented the Ecotourism-Based Field learning Model (EBFL) by studying the ecology and conservation of M. reinwardt in the Gunung Tunak and Kerandangan Nature Tourism Parks, while the control group followed a conventional laboratory practicum. The research instrument was a CTS test validated by experts, and the model's effectiveness was analysed using N-Gain and the Mann–Whitney test. The results showed a significant difference in CTS improvement between the experimental and control groups, as well as a substantive influence of field learning on higher-level cognitive achievement. These findings strengthen the development of an ecotourism-based contextual science learning model as a pedagogical innovation in the education of prospective biology teachers.
Development of Song-Assisted Virtual Reality-Based BioPulse Learning Media to Improve Learning Outcomes of Human Circulatory System Materials Maulana, Fahrizal Husni; Sutikno, Putri Yanuarita
Jurnal Pijar MIPA Vol. 21 No. 2 (2026)
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.v21i2.11771

Abstract

The low understanding of students of abstract science subjects, especially the human circulatory system, is due to the fact that the learning process is still dominated by lecture methods and the use of textbooks, so that students are less actively involved. This study aims to develop and test the effectiveness of song-assisted virtual reality-based BioPulse learning media in improving the learning outcomes of grade V students on the human circulatory system material. This research uses the ADDIE development model, which includes the stages of analysis, design, development, implementation, and evaluation. The subject of this study is grade V students at SD Negeri Mulyosari, totalling 31 students. The trial was carried out in two stages, namely a small-scale test involving 9 students and a large-scale test involving 22 students. Data collection was carried out through validation by media experts and experts in learning outcome test materials, in the form of pretests and posttests, as well as questionnaires on teacher and student responses to BioPulse learning media. Data analysis was carried out using normality tests, paired-samples t-tests, and N-Gain tests. The results of the study showed that the BioPulse media developed obtained validation scores of 93.3% for media experts and 91.6% for material experts, indicating a very feasible category. The average student pretest score of 45.4 increased to 87.9 in the posttest. The results of the paired-samples t-test showed a significance value of 0.000 (< 0.05), indicating a significant difference between the values before and after media use.  The N-gain is 0.79, which is in the high category. Teachers' and students' responses to the media are in the very decent category. The song-assisted, virtual reality-based BioPulse learning media was found to be valid and effective in improving student learning outcomes in human circulatory system material in elementary schools.

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