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Saprizal Hadisaputra
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Univesitas Mataram. Jalan Majapahit No 62 Mataram, Lombok, NTB. 83125. Indonesia
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INDONESIA
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. 7 (2025)" : 30 Documents clear
A Life Lost, A Lesson Learned: Ecological and Emotional Impacts of a White-Throated Kingfishers Death Shree, Deepshikha; Mallick, Md Abu Imran; Paik, Sima; Komal, Kumari; Acharjee, Shiladitya; Ansari, Shaba Alam; Pankaj, Smitha
Jurnal Pijar Mipa Vol. 20 No. 7 (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.v20i7.10116

Abstract

This study presents a reflective account of a personal encounter with a dead White-Throated Kingfisher (Halcyon smyrnensis) during fieldwork, highlighting the ecological and emotional implications of its death. The incident, likely attributed to heat stress exacerbated by climate change, serves as a poignant reminder of the vulnerability of even resilient species to human-induced environmental pressures. Through a species profile, analysis of environmental stressors, and exploration of anthropogenic threats, this study underscores the urgent need for conservation efforts, climate action, and habitat protection. The emotional impact of the encounter emphasizes the importance of recognizing the intrinsic value of wildlife and the interconnectedness of human and environmental well-being. This research aims to contribute to a deeper understanding of the complex relationships between humans and wildlife, inspiring collective action to mitigate the pressing environmental challenges of our time.
Teaching Skills for Students in a Practical Teaching Microteaching Course Kusmiyati, Kusmiyati; Merta, I Wayan
Jurnal Pijar Mipa Vol. 20 No. 7 (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.v20i7.8291

Abstract

The Microteaching course trains students to understand basic teaching skills and apply them in teaching practice with fellow students. The purpose of this study was to determine students' explanation skills during teaching practice in the microteaching course. The study was conducted with Biology Education students enrolled in the Microteaching course, class A, during the 2024/2025 academic year. Data were collected using observation sheets during student teaching practice through peer teaching. The instrument used was derived from indicators' explanation skills, with answer choices on a 1-5 Likert scale. The data were analyzed descriptively by calculating the scores obtained by each indicator on the observed explanation skills, then 5 categories were created: very poor, less good, quite good, good, and very good. The results of observations on all observed explanation skills indicators showed that, on average, students were able to apply explanation skills in teaching practice in micro teaching courses with a good category. However, there were still students with very poor and poor presentations, with an emphasis on important points, and feedback indicators. It can be concluded that, on average, students were able to apply explanation skills in teaching practice; however, they still need to continue practising so that, later, when facing school field practice or when becoming real teachers in schools, they become accustomed to using these skills.
Analysis of Students Environmental Attitudes as a Contribution to the Sustainable Development Goals (SDGs) Al Idrus, Syarifah Wahidah; Rahmawati, Rahmawati; Kadir, Abdul
Jurnal Pijar Mipa Vol. 20 No. 7 (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.v20i7.9015

Abstract

Environmental attitudes among university students play a crucial role in supporting the achievement of the Sustainable Development Goals through the development of responsible and sustainable behaviors. This study aims to analyze university students’ environmental care attitudes in the context of the Sustainable Development Goals (SDGs). A descriptive quantitative approach was employed, involving 121 students from the Chemistry Education Program, Faculty of Teacher Training and Education, Universitas Mataram. Data were collected using a 5-point Likert scale questionnaire covering three primary dimensions of environmental attitude-cognitive, affective, and conative-along with a commitment dimension toward the SDGs. The results indicate that all dimensions fall within high to very high categories, with the highest averages observed in the cognitive (4.32), affective (4,18) and SDGs commitment (4.25) dimensions. The conative dimension scored slightly lower (3.89), suggesting the existence of an attitude–behaviour gap between awareness and actual practice. Students demonstrate strong environmental knowledge and moral commitment, but have not fully translated these into consistent, sustainable behaviors. These findings underscore the need for more contextually relevant and action-oriented learning strategies based on the SDGs, such as project-based learning and eco-campus programs, to translate environmental awareness into tangible actions. Overall, the study emphasizes the strategic role of higher education in cultivating knowledgeable, committed, and sustainable-minded youth aligned with SDG 12, SDG 13, and SDG 15.
Determination of Total Flavonoid Content in Ethanolic Leaf Extract of Calotropis gigantea: A Comparison Between Geothermal and Non-Geothermal Areas Karma, Taufiq
Jurnal Pijar Mipa Vol. 20 No. 7 (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.v20i7.9284

Abstract

Calotropis gigantea (L.), commonly known as biduri, is a plant recognized for its pharmacological properties, including antioxidant and anti-inflammatory activities, largely attributed to its secondary metabolites, particularly flavonoids. The concentration of these bioactive compounds is strongly influenced by the environmental conditions in which the plant grows. Geothermal manifestation areas, characterized by extreme abiotic conditions, can induce metabolic responses in plants, potentially enhancing flavonoid production. This study aimed to determine and compare the total flavonoid content in ethanolic leaf extracts of C. gigantea collected from geothermal and non-geothermal areas in Aceh Province. Extraction was conducted using 96% ethanol, and total flavonoid content was quantified using UV-Vis spectrophotometry via the aluminum chloride (AlCl₃) complexation method. Quercetin served as the standard, and flavonoid levels were expressed as milligrams of quercetin equivalents per gram of extract (mg QE/g). The calibration curve showed a linear relationship between quercetin concentration and absorbance, with a regression equation of y = 0.0101x – 0.0098 (r = 0.9417). The results demonstrated significant differences in flavonoid content between samples from geothermal and non-geothermal sites. C. gigantea plants from geothermal areas exhibited altered flavonoid levels compared to those from non-geothermal regions, indicating that environmental factors play a role in modulating the biosynthesis of these bioactive compounds.
Indonesian Teachers Perspective on the Characteristics and How to Teach Science in Elementary School Sapitri, Riska Dia; Irawan, Rizka Sofia; Assirri, Ryya Aulia
Jurnal Pijar Mipa Vol. 20 No. 7 (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.v20i7.9369

Abstract

Science education plays a critical role in shaping students' scientific literacy and attitudes. Teachers' perspectives on the nature of science (NoS) are central to how science is taught in classrooms, particularly at the elementary level. This study aims to analyse the views of elementary school teachers in Indonesia on the fundamental characteristics of science and how they implement these views in their teaching practices. Using a descriptive quantitative approach, complemented by Focus Group Discussions (FGD), data were collected from 52 teachers across diverse geographical regions, including West Nusa Tenggara, Java, and East Nusa Tenggara. The data were analysed based on four core aspects of the nature of science: science is interesting to study, science is useful in life, science continues to develop, and science is a global human endeavour. The results show that most teachers have very positive views on the first three aspects, while their understanding of the global dimension of science is categorised as good. Further analysis revealed no significant differences in teachers' views based on length of service, gender, or PPG (Teacher Professional Education) status. These findings suggest the need to enhance teachers' pedagogical competence through globally oriented training programs and contextualised science teaching approaches. This study contributes to improving the quality of science education by encouraging a more holistic and globally relevant understanding of science among primary school teachers.
Implementation of Interactive Learning Media on the Blood Circulatory System Towards Science Literacy Febryanie, Nina; Hafizah, Ellyna; Istyadji, Maya
Jurnal Pijar Mipa Vol. 20 No. 7 (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.v20i7.9790

Abstract

Scientific literacy is an important indicator in the implementation of science education, which must be integrated systematically at all levels of education. This study aims to investigate the differences in scientific literacy skills between classes taught using interactive learning media and those taught using conventional learning media, with a focus on the sub-topic of the circulatory system. Additionally, it aims to assess the changes in scientific literacy skills before and after the use of interactive learning media on the sub-topic of the circulatory system. The type of research employed was quasi-experimental, utilising a non-equivalent control group design with data collection techniques that included pretests and posttests of scientific literacy. These tests were used to evaluate the hypothesis through independent sample t-tests and paired sample t-tests. The study's results showed differences in scientific literacy abilities between classes taught using interactive learning media and those taught using conventional learning media in the sub-material of the circulatory system. The results of this study also indicated a difference in scientific literacy skills before and after the use of interactive learning media in the sub-material of the circulatory system. This study demonstrates that the use of interactive learning media that present content related to scientific phenomena can enhance students' scientific literacy skills. This research highlights the importance of utilising interactive learning media for teachers in enhancing students' scientific literacy.
High School Students Perceptions of Problem-Based Learning (PBL) Integrated with Anthropogenic Phenomena: An Analysis of Engagement and Motivation Dewi, Evie Sylviana; Lestari, Nurita Apridiana
Jurnal Pijar Mipa Vol. 20 No. 7 (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.v20i7.9834

Abstract

The importance of student engagement and motivation in the physics learning process at the high school level, which has often been perceived as a difficult subject and less relevant to real life. Through the integration of anthropogenic phenomena, learning is expected to become more contextual and foster awareness of environmental issues. This study aims to determine students' perceptions of physics learning activities using the Problem-Based Learning (PBL) model integrated with anthropogenic phenomena. The research was conducted at the high school level using a quantitative descriptive approach. The respondents consisted of 108 tenth-grade students who had participated in physics learning using this model. The research instrument was a validated questionnaire. Data were analyzed using a Likert scale and presented in percentage form. The results of the study indicate that students' perceptions of physics learning using the integrated anthropogenic PBL model are in the good and very positive categories. This is demonstrated by the percentage of engagement aspects exceeding 80% and the motivation aspects reaching 86%. Overall, both aspects scored 61% or higher, indicating that the application of this model is effective in enhancing student engagement and motivation in learning. These findings are expected to serve as a reference for teachers in developing contextual physics learning and contribute as supporting literature for future research.
Synthetic Enzyme Engineering In Silico and In Vivo Approaches for Applications in the Halal Food Industry Anggraini, Welly
Jurnal Pijar Mipa Vol. 20 No. 7 (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.v20i7.9909

Abstract

Recent developments in biotechnology and bioinformatics have opened new possibilities for designing enzymes for the halal food sector. This study employs an integrated framework combining in silico modelling and in vivo validation to create synthetic enzymes that are both effective and compliant with halal standards. Computational analyses were conducted to predict enzyme–substrate interactions and evaluate structural stability, while experimental validation confirmed enzymatic activity, thermal stability, and safety profiles. The results demonstrate that this dual approach improves design efficiency, enhances catalytic performance, and ensures enzymes originate from halal-certified sources, addressing a notable gap in current research where optimization and religious compliance are often addressed separately. This methodology bridges molecular biochemistry with Islamic jurisprudence, providing a scientifically grounded approach for producing bioenzymes suitable for industrial applications. By showing that halal verification can be integrated without compromising enzyme functionality, the study provides a model for ethical and religiously responsible food production. The findings have broad implications for the halal food industry, supporting scalable enzyme manufacturing and laying the groundwork for future research in synthetic biology, regulatory compliance, and the development of innovative functional foods.
Screening Flavonoids of Ethyl Acetate Extract from Matoa Tree Bark (Pometia pinnata) Using UV-Vis Spectrophotometry Method Budiyanto, Ratno; Kholis, Ach.; Taufiqurrahman, Taufiqurrahman
Jurnal Pijar Mipa Vol. 20 No. 7 (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.v20i7.10099

Abstract

Matoa tree bark is a plant that contains flavonoid chemical compounds believed to be a traditional medicine in various alternative treatments. Therefore, it is important to measure its flavonoid content. Ethyl acetate extracts were prepared using the maceration method at durations of 3 x 24 hours. The aim of this study was to determine the flavonoid compound content and levels in matoa tree bark (Pometia pinnata) using UV-Vis spectrophotometry. Qualitative analysis was carried out using NaOH reagent and the wilstater cyanidin test, both of which showed positive results for containing flavonoid compounds, indicated by an orange color change. Quantitative analysis using a regression quercetin standard curve with an R2 value of 0,9844 revealed a flavonoid content of 2.712%. These results indicate that matoa tree bark extract has a high flavonoid content and has the potential to be developed as a herbal medicine formulation.
Development of a Student Worksheet Based on Project-Based Learning to Improve Learning Outcomes of Junior High School Students Rahmah, Yuniarti Khairini; Hafizah, Ellyna; Annur, Syubhan
Jurnal Pijar Mipa Vol. 20 No. 7 (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.v20i7.10161

Abstract

This research involves the development of a Student Worksheet based on project-based learning for the solar system sub-material, focusing on improving the learning outcomes of junior high school students. The purpose of this study is to identify the level of validity, practicality, and effectiveness of the project-based learning Student Worksheet. The method employed in this research is Research and Development (R&D), utilising the ADDIE approach as the development model. This study demonstrates that project-based learning, specifically the Student Worksheet on solar system sub-materials, is deemed highly valid, with a validity value of 0.88, aimed at enhancing student learning outcomes. The practicality of the results from a student response questionnaire, with 82.24% of students agreeing, indicates that the Student Worksheet is highly practical. Effectiveness based on knowledge learning outcomes, with the calculation of n-gain from pretest and posttest, obtained an average n-gain of 0.71 with high criteria, attitude learning outcomes obtained an average of 90.67% which is categorised as very good, and learning outcomes skills obtained an average of 91% which is categorized as very good. The results of the study demonstrate that the Student Worksheet project-based learning on the solar system sub-material is feasible for use, as it meets the criteria of validity, practicality, and effectiveness in improving student learning outcomes. The implications of this research suggest that project-based learning Student worksheets can serve as an alternative, innovative teaching material that encourages active student involvement, improves critical thinking skills, and provides educators with a reference for developing learning tools that align with the demands of the Independent Curriculum and 21st-century learning.

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