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Jurnal Penelitian Pendidikan IPA (JPPIPA)
Published by Universitas Mataram
ISSN : 24602582     EISSN : 2407795X     DOI : -
Core Subject : Science, Education, Agriculture, Engineering,
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Education Materials Science & Nanotechnology Physics
Science Educational Research Journal is international open access, published by Science Master Program of Science Education Graduate Program University of Mataram, contains scientific articles both in the form of research results and literature review that includes science, technology and teaching in the field of science. The Science Educational Research Journal is published twice in a year in January and July editions. The editors receive writing in Indonesian or English, either from the university or from outside the university.
Arjuna Subject : -
Articles 6,652 Documents
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Effect of Botanical Pesticides on Inhibiting Colletotrichum sp. Causing Anthracnose in Avocado (Persea americana Mill.) In Vitro Anisa Rahman Rusiati; Feskaharny Alamsjah; Riska; Suwirmen
Jurnal Penelitian Pendidikan IPA Vol 12 No 4 (2026)
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v12i4.14567

Abstract

Anthracnose caused by Colletotrichum sp. is a major postharvest disease of avocado (Persea americana Mill.) that leads to significant economic losses during storage. This study aimed to evaluate the antifungal efficacy of essential oil-based botanical pesticides derived from lemongrass (Cymbopogon nardus L.), cinnamon (Cinnamomum burmannii L.), and wild betel (Piper aduncum L.) against Colletotrichum sp. in vitro. The experiment was arranged in a Completely Randomized Design (CRD) with nine treatments and three replications, using essential oil concentrations up to 1000 ppm in both single and combined formulations. Antifungal activity was assessed based on colony diameter and fungal biomass, and data were analyzed using Analysis of Variance (ANOVA) followed by Duncan’s New Multiple Range Test (DNMRT). All treatments significantly inhibited fungal growth compared to the control. The smallest colony diameter was recorded in the lemongrass treatment (12.80 mm), with the highest inhibition rate of 85.77%. The lowest fungal biomass was observed in the cinnamon treatment (20 mg). These results demonstrate very strong antifungal activity of the tested essential oils.This study highlights the novelty of utilizing locally sourced essential oils as botanical pesticide formulations targeting Colletotrichum sp., suggesting their potential as environmentally friendly alternatives for sustainable postharvest disease management.
Investigation of High School Students’ Conceptual Understanding of Light Waves: Survey in West Java Syafnah Aisyah Nauli Harahap; Ika Mustika Sari; Dadi Rusdiana
Jurnal Penelitian Pendidikan IPA Vol 12 No 4 (2026)
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v12i4.14570

Abstract

Conceptual understanding is key to learning. It serves as the groundwork that enables students to apply concepts and build higher-order skills. However, previous studies have shown that students’ conceptual understanding of light waves remains limited, and comprehensive data across multiple regions are still lacking. This study investigates students’ conceptual understanding of light waves in West Java. The sample comprised 189 twelfth-grade students who had completed instruction on light waves, selected using a random sampling technique. Employing a survey design with a quantitative descriptive approach, data were analyzed using Rasch Model techniques. The instrument used was a 29-item multiple-choice Light Phenomena Conceptual Assessment (LPCA) which has been validated and reported as reliable. Based on person logit scores, results indicate that 58.73% of students fall into the low-ability category, 26.98% into the medium category, and 14.29% into the high category. These results indicate that majority of students have not yet attained an adequate level of conceptual understanding and still experience difficulties in understanding light wave concepts, which may limit their problem-solving abilities. These outcomes can inform educators and researchers in designing instructional strategies and learning media to more effectively teach light wave concepts and thereby improve students’ conceptual grasp.
Pengembangan Instrumen Asesmen Kompetensi Minimum Literasi Membaca dan Numerasi Berbasis STEM pada Topik Stoikiometri Windi Putri Jayanti; Nahadi; Wiwi Siswaningsih
Jurnal Penelitian Pendidikan IPA Vol 12 No 5 (2026): In Progress
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v12i5.14571

Abstract

This study aimed to develop and validate a STEM-based stoichiometry assessment instrument aligned with the Minimum Competency Assessment (AKM) framework to measure students’ reading literacy and numeracy skills. STEM aspects were integrated into the items through science, technology, engineering, and mathematics contexts embedded in stoichiometry problems. The study employed a development and validation research method. Initially, 50 items were developed, and content validation results showed that 48 items met the validity criteria with a Content Validity Ratio (CVR) value of 1.00. From the validated items, 30 items were selected for empirical testing, consisting of 16 numeracy items and 14 reading literacy items distributed across 11 reading texts. The empirical testing results indicated that 23 out of 30 items were valid and reliable. Most items were categorized as having a moderate difficulty level and acceptable discriminative power. Furthermore, students’ reading literacy and numeracy competencies were categorized as basic. Therefore, the developed instrument is feasible as an alternative assessment tool to support AKM-oriented chemistry learning and evaluation.
Development of Augmented Reality Based Digital Teaching Module for the Human Reproductive System in Class XI Science Nurul Alfiah; Rahmatia Thahir; Nurul Magfirah
Jurnal Penelitian Pendidikan IPA Vol 12 No 4 (2026)
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v12i4.14573

Abstract

Biology learning on the topic of the reproductive system in high schools still faces challenges due to the limited availability of learning media that can visualize abstract concepts interactively and contextually. Commonly used learning media are conventional, resulting in low student engagement and a lack of conceptual understanding. This study aims to develop an Augmented Reality (AR)-based digital learning module for the reproductive system and to test its validity, practicality, and effectiveness in Biology learning. The novelty of this research lies in the integration of Augmented Reality technology into the Biology learning module to provide interactive three-dimensional visualizations of the structures and processes of the reproductive system. This study used a Research and Development (R&D) approach with the ADDIE development model. The subjects were 11th-grade students at SMA Negeri 23 Makassar. The research instruments consisted of expert validation sheets, teacher and student response questionnaires, and learning achievement tests in the form of pretests and posttests. Data were analyzed using Aiken's V-index to determine validity, percentage analysis to assess practicality, and N-Gain analysis to evaluate effectiveness. The research results show that the AR-based digital teaching module has very high validity, practicality, and effectiveness. Therefore, the developed module is suitable for use as an innovative learning medium in biology education.
Profil Fingerprinting Senyawa Dari Ekstrak Kulit Batang Tanaman Tammate (Lannea coromandelica (Hout) Merr.) Menggunakan Analisis FTIR Secara Kemometrik Muhammad Azwar AR; Muhammad Syahrir; Megawati; Funny Glorita R; Jamaluddin; Hardi
Jurnal Penelitian Pendidikan IPA Vol 12 No 5 (2026): In Progress
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v12i5.14579

Abstract

Lannea coromandelica is a traditional medicinal plant rich in alkaloids, flavonoids, saponins, and tannins with reported antioxidant, antimicrobial, anti-inflammatory, antidiabetic, and antirheumatic activities. Previous studies have primarily emphasized phytochemical screening and pharmacological evaluation, whereas metabolite fingerprint characterization using spectroscopic and chemometric approaches remains limited. This study aimed to characterize the metabolite fingerprint profile of L. coromandelica stem bark extracts using Fourier Transform Infrared (FTIR) spectroscopy and chemometric analysis. Twelve extracts were prepared using maceration, Reflux and sonication with distilled water, ethanol, n-hexane, and ethyl acetate to obtain metabolites with different polarities. FTIR spectroscopy was employed due to its rapid, non-destructive, and reproducible detection of functional groups, while chemometric analysis enhanced extract discrimination and pattern recognition. FTIR spectra revealed O–H, N–H, C–H, C=C, C=O, and C–C functional groups associated with phenolic, aromatic, and alkaloidal compounds related to antioxidant and anti-inflammatory activities. Principal Component Analysis (PCA) showed clear clustering patterns influenced by extraction method and solvent polarity, while Cluster Analysis (CA) demonstrated similarity values of 35.54–99.82% among extracts. These findings confirm that FTIR combined with chemometrics is effective for metabolite fingerprint characterization and quality standardization of L. coromandelica extracts.
Management of Archery-Based Sport Games to Improve Numeracy and Attention in Elementary School Students: A Sequential Exploratory Mixed-Methods Study Hendra Setyawan; Widha Srianto; Ismail Gani; Diah Andika Sari; Matsuri; Ratko Pavlovic
Jurnal Penelitian Pendidikan IPA Vol 12 No 4 (2026)
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v12i4.14598

Abstract

Competency-based learning transformation requires the strengthening of numeracy and attention from elementary school through meaningful, safe, and measurable learning experiences. This study aimed to synthesize scientific evidence on the management of archery-based sport games and to verify its practical relevance through primary questionnaire data. A sequential exploratory mixed-methods design was employed. The first phase consisted of a systematic literature review conducted according to the PRISMA guidelines. A Scopus search identified 170 records, which were screened based on publication year, article type, language, access status, primary data orientation, and relevance to archery, target sports, physical education games, attention, and numeracy integration. A total of 25 articles were included in the narrative synthesis. The second phase was conducted using a five-point Likert-scale questionnaire administered to 25 elementary school physical education students who had experience in archery courses. The results showed very high internal consistency, with Cronbach’s alpha = 0.945. The overall item mean was 4.47 out of 5, the mean total score was 120.80 out of 135 with SD = 10.81, and 96.74% of responses were categorized as positive. The safety and readiness construct obtained the highest mean score (M = 4.75), followed by attention enhancement (M = 4.49), motivation and engagement (M = 4.49), game-based learning design (M = 4.42), numeracy integration (M = 4.38), and implementation feasibility (M = 4.34). The integration of both findings indicates that archery-based games have the potential to serve as a safe, engaging, and measurable physical education strategy for training focus and embedding contextual numeracy activities. However, claims regarding numeracy improvement still require direct experimental testing with elementary school students.
Critical Land Planning Low Emission Development Strategy in Bila Riven Basin of South Sulawesi Province Sultan; Khaifah Asgaf; Sri Ade Putra; Muthmainnah; Mukhlis
Jurnal Penelitian Pendidikan IPA Vol 12 No 5 (2026): In Progress
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v12i5.14611

Abstract

Environmental degradation in the Bila Watershed, characterized by increasing critical land, carbon emissions, erosion, and sedimentation in Lake Tempe, requires integrated low-emission land-use planning. This study aims to analyze carbon stocks, carbon dioxide (CO₂) sequestration, sedimentation, and economic valuation under several land-use scenarios using the Land Use Planning for Low Emission Development Strategy (LUWES) approach. The novelty of this study lies in the integration of critical land analysis, carbon stock estimation, sedimentation assessment, and economic valuation into low-emission watershed planning scenarios. The research was conducted in the Bila Watershed, South Sulawesi Province, covering an area of 179,612.87 ha during the 2016–2017 period. Biomass measurements were conducted using nested plots across representative land-cover classes, while erosion was estimated using the Universal Soil Loss Equation (USLE) and sedimentation was calculated using the Sediment Delivery Ratio (SDR) approach. Economic feasibility was analyzed using the Net Present Value (NPV) method. Three land-use scenarios were simulated over a 20-year planning horizon. The results indicate that the existing condition produced carbon emissions of 915,537.49 tons CO₂-eq and estimated sedimentation of 396,163.05 tons/year. Scenario I provided the best ecological-economic balance by increasing carbon stocks, reducing erosion and sedimentation by 45.93%, and increasing economic value by 10.66%. Scenario II generated the highest economic return but increased ecological pressure, while Scenario III emphasized social forestry and emission reduction with moderate economic benefits. These findings demonstrate that integrated low-emission watershed planning can support critical land rehabilitation, climate change mitigation, and sustainable watershed management.
Correlation of Permeability and Thickness of the Clay Core Zone on Plastic Deformation in the Melawi Dry Dam, Indonesia A Raya Diva Oriana; Anggara Wiyono Wit Saputra; Andre Primantyo Hendrawan
Jurnal Penelitian Pendidikan IPA Vol 12 No 5 (2026): In Progress
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v12i5.14615

Abstract

The Melawi Dry Dam is a zoned embankment dam with clay core located in West Kalimantan, Indonesia. As a flood-control structure, it undergoes significant wet–dry cycles that modify stress distribution and pore water pressure, potentially influencing plastic deformation within the core zone. This study aims to evaluate the effects of clay core thickness and permeability coefficient on vertical plastic deformation using a combination of fully coupled flow–deformation and plastic analysis in PLAXIS 2D. Numerical simulations represent a post-flood condition followed by a 130-day consecutive dry season period, defined as Julian days when rainfall remains at the lower rainfall-gradient threshold, during which the reservoir remains empty because inflow exceeds outlet capacity. Nine scenarios were analyzed by combining three core thicknesses (11.64, 19.40, and 27.16 m) with three laboratory-determined permeability coefficients. The results indicate that seven scenarios remain below the maximum allowable deformation limit of 1.0% of the dam height. Statistical analysis shows a strong correlation between core thickness, permeability, and deformation (R = 0.929). Multiple linear regression (Significance F = 0.00253; p < 0.05) confirms that both variables significantly affect deformation. Increasing core thickness consistently reduces plastic deformation, while lower permeability enhances resistance to seepage-induced instability, thereby supporting safe dry dam design.
Total Economic Valuation of Coral Reef Ecosystems and Ecotourism Carrying Capacity for Sustainable Management of the Gita Nada Marine Protected Area, West Lombok Syarif Husni; Sitti Hilyana; L. Sukardi; Muhammad Junaidi
Jurnal Penelitian Pendidikan IPA Vol 12 No 5 (2026): In Progress
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v12i5.14629

Abstract

Economic valuation alone is insufficient if it is not complemented by an analysis of environmental carrying capacity, particularly in areas designated for ecotourism development. This study aims to estimate the total economic value (TEV) of coral reef ecosystems and to assess the ecotourism carrying capacity within the Gita Nada Marine Protected Area (MPA) in West Lombok Regency. A descriptive research approach was employed using survey techniques involving three respondent groups: ecosystem service users (fishermen, n = 24), tourists (n = 40), and stakeholders (n = 11), totaling 75 respondents. Direct and indirect use values were estimated using market price, surrogate market, and replacement cost methods, while non-use values were derived through willingness-to-pay (WTP) surveys and benefit transfer. The findings indicate that the total economic value of coral reefs in the Gita Nada MPA reaches IDR 74,961,205,060.00 per year, with the largest component being existence value (IDR 28,782,000,000.00 per year). The ecotourism carrying capacity based on Government Regulation No. 18 of 1994 (10% of utilization zone) is estimated at 275 visitors per day for diving and 137 visitors per day for snorkeling, and 137 visitors per day for beach-based recreation. These values underscore the importance of sustainable conservation management to preserve the long-term ecological and economic benefits of the Gita Nada MPA.
Bahasa Inggris Thiara Adzkia Muthmainnah; Syamsiah; Andi Mu’nisa; Firdaus Daud; Faisal
Jurnal Penelitian Pendidikan IPA Vol 12 No 4 (2026)
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v12i4.14632

Abstract

This quasi-experimental study employed a pretest–posttest control group design to examine the effect of Collaborative Mind Mapping in Inquiry-Based Learning on students’ collaboration skills and learning outcomes in biology Grade XI at SMA Negeri 3 Enrekang. The population comprised 105 Grade XI FA students. Two class (XI FA 1 and XI FA 2; n = 70) were selected using cluster random sampling, with one class assigned as the experimental group and the other as the control group. Data were collected using a collaboration skills observation sheet developed based on the indicators and rubrics proposed by Greenstein (2012) and the administration of pretest and posttest learning outcome questions. Descriptive analysis showed that the experimental group’s mean collaboration score increased from 40.36 to 78.93, higher than the control group (39.23 to 68.04). Similarly, learning outcomes improved from 58.51 to 86.49 in the experimental group, compared to 58.40 to 75.20 in the control group. The ANCOVA analysis results obtained a significance value for collaboration skills of 0.000 < 0.05, and a significance value for learning outcomes of 0.002 < 0.05. It can be concluded Collaborative Mind Mapping in inquiry-based learning significantly improves students' collaboration skills and learning outcomes in biology Grade XI.

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