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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. 20 No. 5 (2025)" : 30 Documents clear
The Development of Learner Activity Sheets Based on Argument Driven Inquiry Model With Socioscientific Issues Context to Improve Students Argumentation Skills Kuki, Agustina Dua; Wea, Kristiana Nathalia; Susanty, Petronela Ivoni
Jurnal Pijar Mipa Vol. 20 No. 5 (2025)
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.v20i5.9567

Abstract

Learning by integrating argumentation skills has not been fully implemented in learning.  The purpose of this study was to develop a student activity sheet based on the Argument-Driven inquiry model with a socioscientific issue context. This research integrates the context of socioscientific issues as a stimulus for students in building scientific argumentation. This research method is the 4D model, which includes the define, design, develop, and disseminate stages. However, the stages of this research are limited to the development stage. The results showed that the student activity sheet was developed based on the learning stages of the Argument-Driven inquiry model, which is limited to the scientific argumentation phase. The study of socioscientific issues is adjusted to the learning subtopic of factors that affect the reaction rate. The data from the validation study of the Learner Activity Sheet is classified as a very valid category with a content validity score of 89%; the validity of the layout presentation aspect is 92% and the language aspect is 96%. Meanwhile, the students' response result shows that the level of satisfaction with the activity sheets is 96%, including the category of very satisfied. The improvement of students' argumentation skills was at a moderate level with an N-gain score of 0.64. Statistical test results show there is a significant difference between pretest and posttest scores with a P-value <0.05. Based on these results, it can be concluded that the LAS based on the Argument Driven Inquiry model with a socioscientific Issue context is valid, practical and effective for improving students' argumentation skills.
The Effect of Contextual Teaching and Learning Using PhET Media on Higher-Order Thinking Skills in the Energy Material Marlina, Lisa; Supriadi, Gito; Rizal, Setria Utama
Jurnal Pijar Mipa Vol. 20 No. 5 (2025)
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.v20i5.9571

Abstract

Natural and Social Sciences (IPAS) learning in schools often faces challenges, especially in improving students' higher-order thinking skills. One of the factors that results in low learning outcomes in higher-order thinking skills is the use of learning models that do not involve students fully and actively. Therefore, an innovative and effective learning model is needed, one of which is the contextual teaching learning model using PhET media. This study was conducted to examine the application of the Contextual Teaching and Learning (CTL) model using PhET media on energy materials in grade 4 elementary school, and the significant influence of the Contextual Teaching and Learning (CTL) model using PhET media on Higher Order Thinking Skills in energy materials in grade 4 elementary school. he method used is a quasi-experimental qualitative design with a one-group pretest-posttest design. Data in the study were obtained through observation, tests and documentation. The data analysis technique in this study uses observation sheets to see the application of the contextual teaching learning model using PhET media, with a score of 87.5 in the satisfactory category. Descriptive statistical data were obtained; the average pretest score was 44.00. Then, after applying the Contextual Teaching and Learning (CTL) learning model using PhET media, it increased to 90.87. The normality test obtained a pre-test value of 0.057 ˃ 0.05, so the distribution of data in this pretest was distributed normally. As for the post-test, the results of higher-order thinking skills have a value of 0.541 ˃ 0.05 with normal distribution. The hypothesis test uses the Wilcoxon Signed Ranks Test with a Mean Rank of 8.00 and a Sum of Rank of 120.00 with a significance value of 0.000, which means that it is less than the significance level (α) of 0.05, so that H₀ is rejected. This means that there is a significant difference between pre-test and post-test scores. In conclusion, the Contextual Teaching and Learning (CTL) learning model using PhET media has an effect on Higher Order Thinking Skills in energy materials in grade 4 elementary school.
Microwave-Assisted Deep Eutectic Solvent Extraction of Lipids from Ulva sp.: Optimization and Fatty Acid Profiling Rizkiana, Meta Fitri; Lestari, Afrila Tutut Dwijati; Sholeha, Irdatus; Palupi, Bekti; Putri, Ditta Kharisma Yolanda; Rahmawati, Istiqomah; Amini, Helda Wika; Fachri, Boy Arief
Jurnal Pijar Mipa Vol. 20 No. 5 (2025)
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.v20i5.9588

Abstract

Ulva sp. is a green alga commonly found in Indonesian waters. It contains approximately 60% carbohydrates, 10–47% protein, and 1–3% lipids. This study aimed to determine the optimum conditions for lipid extraction from Ulva sp. A pre-treatment step was carried out by adding a Deep Eutectic Solvent (DES) and distilled water. The DES used was a mixture of zinc chloride and urea in a 1:2 molar ratio. The sample was then mixed with a chloroform-methanol solvent (2:1 v/v) and subjected to Microwave-Assisted Extraction (MAE). The variables investigated in this study included microwave power (150, 300, and 450 W), extraction time (10, 15, and 20 min), and solvent volume (45, 60, and 75 mL). The organic phase obtained from the extraction process was separated and evaporated to determine the lipid yield. The highest yield, 15.8%, was achieved under conditions of 20 min extraction time, 75 mL solvent volume, and 300 W of power. GC-MS analysis of the highest-yield sample revealed the presence of fatty acids including palmitic acid, oleic acid, and palmitoleic acid. This optimized method supports future applications in biodiesel production and green extraction processes for algae-based bioresources.
Analysis of Learning Difficulties of Students in Biology Subjects in Junior High School Leo, Marince Inforsalina
Jurnal Pijar Mipa Vol. 20 No. 5 (2025)
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.v20i5.9822

Abstract

Students' learning difficulties are generally influenced by two aspects, namely internal factors and external factors. Internal factors involve a lack of interest in learning, a lack of natural talent in a particular field, and health problems that can hinder the learning process. This study aims to analyze the learning difficulties of eighth-grade students in biology at Satap Penmina Junior High School. Data analysis was conducted using descriptive qualitative methods, with data obtained from student learning outcomes and questionnaire responses. The analysis identified factors contributing to learning difficulties among students at SMP Satap Penmina, including both internal and external factors. Internal factors included health issues, self-readiness, and difficulties, while external factors included school facilities and family support. Based on the research findings, it was concluded that the factors causing students' difficulties in learning biology are internal factors such as health (32%), self-readiness (30%), and difficulties (32%) (low category). External factors include family (32%) in the low category and school (35%) in the moderate category.
The Relationship Between Prior Knowledge and Students’ Chemical Literacy Pebriani, Nur Indah; Aini, Faizah Qurrata
Jurnal Pijar Mipa Vol. 20 No. 5 (2025)
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.v20i5.9598

Abstract

Chemical literacy is a key component of scientific literacy, enabling individuals to understand, evaluate, and apply chemical concepts in real-life situations. This study investigates the relationship between students' prior knowledge and their chemical literacy on acid-base topics in senior high school. The study employed a quantitative descriptive method with a correlational approach, involving 99 eleventh-grade students from three accredited private schools in Padang City, Indonesia. Two validated instruments were used to collect data: the Structured Essay Diagnostic Test of Chemistry (SEDToC) to assess prior knowledge, and a discourse-based chemical literacy test. Data analysis included descriptive statistics and Spearman's Rank correlation. Results revealed a very weak and statistically insignificant positive correlation between prior knowledge and chemical literacy (rₛ = 0.1454; p > 0.05), with a coefficient of determination (r²) of 2.1%. Stoichiometry emerged as the subtopic with the highest level of understanding (41.68%), while chemical bonding was the lowest (3.05%). Although most students demonstrated procedural understanding, many struggled with contextual and discourse-based questions that required higher-order thinking. A high rate of misconceptions (36.59%) was also identified, which negatively affected students’ ability to reason and interpret chemical phenomena accurately. This study highlights that conceptual understanding alone is insufficient to support chemical literacy. The novelty of this research lies in its focus on chemical literacy as a multidimensional construct, beyond mere content mastery. The findings suggest that instructional strategies should not only strengthen prior knowledge but also integrate real-world contexts and promote critical thinking. Future research is recommended to explore other contributing factors such as motivation, metacognitive awareness, and teaching approaches that could better foster students’ chemical literacy. To support this, educators should design learning strategies that go beyond reinforcing prior knowledge and emphasise contextual, inquiry-based, and reflective approaches to develop students' comprehensive chemical literacy.
Effect of Problem-Based Learning Model on Biology Learning Motivation and Conceptual Understanding Muliana, Haika; Ramdani, Agus; Kusmiyati, Kusmiyati
Jurnal Pijar Mipa Vol. 20 No. 5 (2025)
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.v20i5.9716

Abstract

Education plays a crucial role in shaping high-quality human resources. However, observations at SMA Negeri 5 Mataram revealed that students are less motivated to participate in classroom learning. This is evident from students' lack of attention to the teacher’s explanation and their difficulty in understanding the material. One of the main causes is the use of monotonous, teacher-centered learning methods. This condition calls for innovation in teaching, such as implementing the Problem-Based Learning (PBL) model, which is designed to improve students’ motivation and conceptual understanding. This study aims to analyze the effect of the problem-based learning model on students’ learning motivation and understanding of biological concepts among Grade X students at SMA Negeri 5 Mataram. The research employed a quantitative approach with a quasi-experimental design using a non-equivalent control group, involving an experimental group and a control group with both pretest and posttest. The sample was selected using purposive sampling, with class X6 as the control group and class X7 as the experimental group. The instruments used were a questionnaire to measure learning motivation and an essay test to assess conceptual understanding. The data were analyzed using the Mann-Whitney test, which showed a significant difference between the experimental and control groups, with a significance value of 0.000 < 0.05. These findings indicate that the problem-based learning model has a positive effect on improving both learning motivation and conceptual understanding. A good understanding of concepts can enhance students’ confidence in learning, thereby increasing intrinsic motivation. With strong motivation and conceptual understanding, students tend to achieve better academic outcomes and are more prepared to continue learning and adapting to future challenges.
Fauna Diversity and Bird Community Structure in the Bissoloro Educational Forest, South Sulawesi Hendra Kurniawan; Kurniawan, Hendra; Marpaung, Sutan Sahala Muda; Oktaviani, Eva; Syah, Firman
Jurnal Pijar Mipa Vol. 20 No. 5 (2025)
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.v20i5.9841

Abstract

The Bissoloro Educational Forest, covering an area of 75.12 hectares in Gowa Regency, South Sulawesi, serves as a natural research site under the stewardship of Muhammadiyah University of Makassar. Although the forest holds considerable ecological value, comprehensive and systematic data on its faunal diversity are still limited. This study was conducted to explore and evaluate the composition, richness, and community structure of fauna within the area, focusing on three major groups: mammals, reptiles, and birds. Data collection for mammals and reptiles was conducted through both direct sightings and indirect indicators, while avian data were obtained using a 1,700-meter line transect with 17 observation points over a three-day survey period. A total of 39 faunal species were recorded, comprising 4 mammal species, 10 reptile species, and 25 bird species. Among the bird species, Pycnonotus aurigaster was identified as the most dominant, with the highest Importance Value Index (INP) of 38.19%, supported by a relative frequency of 19.61% and relative dominance of 18.58%. The overall bird community diversity, as measured by the Shannon-Wiener index (H'), was 2.59, reflecting a moderate level of biodiversity. The occurrence of endemic and protected species, including top predators and nectar-feeding birds, indicates that essential ecological functions such as pollination and food web dynamics are still maintained. These results highlight the ecological importance of the Bissoloro Educational Forest and its role as a vital site for biodiversity conservation, environmental education, and long-term ecological monitoring in alignment with the Merdeka Belajar Kampus Merdeka (MBKM) framework.
Potential Bioactivity of Guava Leaf Extract (Psidium guajava L.) as a Natural Therapeutic Agent: A Review Risa, Risa Dwi; Septiani, Dia; Faoziyyah, Nabilla; Ananda, Meisya Dwi
Jurnal Pijar Mipa Vol. 20 No. 5 (2025)
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.v20i5.8080

Abstract

Guava leaves (Psidium guajava L.) from the family Myrtaceae are known to have many health benefits. This review identifies the main active compounds in guava leaves, such as flavonoids, tannins, saponins, and terpenoids, which contribute to its pharmacological activities. The purpose of this article is to evaluate the effectiveness and safety of guava leaves in providing therapeutic effects, such as antimicrobial, anti-inflammatory, and anticancer activities. A literature review with a qualitative approach of 10 articles was used in this research. Research shows that guava leaf extract is effective as an antidiabetic by inhibiting α the α-amylase enzyme and regulating glucose uptake. In addition, this extract functions as an antioxidant to fight free radicals, as well as an immunomodulator that increases phagocyte activity. The antibacterial and anti-inflammatory activities of this extract can inhibit the growth of pathogenic microbes and suppress inflammatory responses, making it potentially useful for the treatment of infection and inflammation. Anticancer activity has also been demonstrated, mainly through inhibition of cancer signalling pathways and induction of apoptosis. Thus, guava leaves have prospects as a potential natural ingredient for the development of herbal medicines to treat various health conditions, especially enzyme inhibition, increased phagocyte activity, and inhibition of inflammation and pathogenic microbial growth.
Potential Combination of Red Onion and Bean Sprouts Extract as Natural Regulatory Substance (PGR) through Total Phenolic Analysis and Antioxidant Activity Aristya, Cintania Putri; Anggarani, Mirwa Adiprahara
Jurnal Pijar Mipa Vol. 20 No. 5 (2025)
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.v20i5.9550

Abstract

Organic farming is now increasingly gaining attention as a solution to the challenges of environmental damage and the need for healthy food in the modern era. One important aspect of organic farming practices is the use of natural Plant Growth Regulators (PGRs) to increase crop yields and quality. This study aims to examine the potential combination of red onion and bean sprout extracts as natural PGRs through total phenolic analysis and antioxidant activity as a reference basis for further application to potato plants. Extracts from both materials were obtained through the maceration method, then formulated in six different ratio comparisons and analyzed for their total phenolic content using the Folin–Ciocalteu method and their antioxidant activity through the DPPH test. The results showed that variation B (8 g/L red onion + 2 g/L bean sprouts) had the highest total phenolic content of 14.77 mg GAE/g and the strongest antioxidant activity with an IC50 value of 173.7 ppm. The results were supported by the DMRT test, which showed significant differences between the combination variations. The content of natural hormones such as auxin, gibberellin, and cytokinin in both materials works synergistically in stimulating the biosynthesis of secondary metabolites such as phenolics, which contribute to antioxidant activity and its effectiveness as a PGR. Thus, variation B has the highest potential to be developed as an environmentally friendly and sustainable natural PGR to support the growth and resistance of potato plants. This formulation shows promising potential for further development in the field of organic farming and nature-based agricultural innovation.
The Effect of the JIRE Collaborative Learning Model Based on Phylearn Media on Students Learning Outcomes in the Topic of Heat and Temperature in School Ilato, Nursuciani Radja; Ntobuo, Nova Elysia; Setiawan, Dewa Gede Eka; Samatowa, Lukman; Mohamad, Wahyu Muzizat; Yunus, Muhammad
Jurnal Pijar Mipa Vol. 20 No. 5 (2025)
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.v20i5.9631

Abstract

Collaborative learning has the potential to address these challenges by promoting problem-solving through collective participation within groups. This research investigates the effect of the Jire Collaborative Learning model integrated with Phylearn media on students’ learning outcomes regarding heat and temperature. The study was motivated by low student achievement, primarily attributed to conventional teaching methods to engage students in active participation. This quasi-experimental research employed a one-group pre-test-post-test design involving 25 seventh-grade students at SMP Negeri 4 Monano. The Jire Collaborative model emphasizes active student collaboration, while Phylearn provides interactive multimedia support to help visualize abstract scientific concepts. The findings reveal a significant improvement in students’ cognitive performance (levels C2-C4) after the intervention, indicating that the integrated approach effectively improves conceptual understanding. This influence is demonstrated by the difference in students’ learning outcomes before and after applying the JIRE model, where the average pre-test score of 46.4 increased to 81.05 in the post-test. The t-test results indicate that this difference is statistically significant, with a significance value of 2.10, less than 0.05. These findings confirm a significant difference between students’ pre-test and post-test scores after applying the JIRE collaborative learning model, indicating that this model effectively improves students’ learning outcomes. These results suggest that technology-supported collaborative learning is a promising strategy for improving the quality of science education at the junior high school level.

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