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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 6,093 Documents
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Development of Total Suspended Solids (TSS) Algorithm Based on Visible Spectrum Reflectance of Sentinel-2 Imagery (Case: in Suwung Estuary, Bali) Yuliara, I Made; Ratini, Ni Nyoman; Baskoro, Winardi Tjahyo; Wibisana, Hendrata
Jurnal Penelitian Pendidikan IPA Vol 11 No 5 (2025): May
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v11i5.11039

Abstract

This study aims to develop and build a new algorithm model that is suitable for predicting the concentration and spatial distribution of total suspended solids (TSS) in the Suwung estuary in Bali based on the visible spectrum reflectance of Sentinel-2 imagery. A total of 20 water samples were taken at selected coordinates and the time coincided with the Sentinel-2 satellite recording the research location. The TSS concentration of the samples was measured in the laboratory (in-situ) and the bottom of atmosphere reflectance correction (  used the dark object substaction (DOS) method. The development used regression and correlation of in-situ data with imagery. Three algorithm models, namely Budhiman (2014), Guzman & Santaella (2009), and Parwati (2014) were used as an approach to developing a new TSS algorithm (AlgoNew), resulting in the Parwati model as the best model (MAPE = 3.889%, RMSE = 0.386 and R2 = 0.816). The result of AlgoNew model development is , where the MAPE is 3.315%, RMSE = 0.332 and R2 = 0.845. The analysis results show that AlgoNew has smaller errors, is more valid, has stronger correlations, and its implications are more representative and feasible to apply compared to Parwati's algorithm (2014).
Peran Ekologis Serangga Terbang Diurnal untuk Pertanian dan Potensinya untuk Kolaborasi Pendidikan Biologi Fajeriadi, Hery; Nugroho, Bimo Aji; Fahmi, Fahmi; Arisandi, Riza
Jurnal Penelitian Pendidikan IPA Vol 11 No 5 (2025): May
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v11i5.11041

Abstract

The quality of agriculture is affected by insects in agricultural areas. Both insects that have a negative impact such as pests, positive such as predators against pests, and those that are neutral or have no effect on agriculture, but can be an indicator of the ecosystem. Control of plant pest organisms (PPO) is often done by spraying pesticides, but also results in a decrease in the population of insect predators of pests. The diversity of flying insects in Haturak farm, Kupang Village, Tapin Regency has not been documented. This study aims to identify the types of flying insects on Haturak farm and analyze their ecological role. The research method used was a descriptive and observational approach. Data were collected through total roaming and direct documentation using macro photography in the insects’ natural habitat. Analysis was done descriptively and reinforced with literature studies. The results of the study found 18 species of flying insects from six orders. Eight species played a positive role, while ten species had a negative impact on agriculture. Among them, two species played both positive and negative roles, and two others had a neutral role. This condition is less favorable for agriculture because there are fewer predatory insect species than pests. For the sake of biological pest control, enriching pest predator species is recommended to reduce land damage due to high or frequent chemical use. Further studies on diversity and abundance indices are recommended to understand the territorial dominance of each species, as well as to evaluate the effectiveness of biological control. Collaboration between Biology Education and farmers through ecological education builds synergy between science and sustainable farming. The five initiatives enhance ecological literacy and apply local wisdom. To maximize impact, it is recommended to integrate these programs into regular academic and community service activities, ensuring long-term engagement and measurable outcomes.
The Impact of Problem-Based Learning on Students' Problem-Solving Skills and Learning Motivation: A Perspective on Learning Styles Chaniago, Muhammad Akbar; Arianingrum, Retno; Shiddiqi, Muhammad Habib Ash
Jurnal Penelitian Pendidikan IPA Vol 11 No 5 (2025): May
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v11i5.11045

Abstract

Problem-solving ability and learning motivation are essential in chemistry learning, yet often overlooked in conventional instruction. This study investigates the effects of problem-based learning (PBL) versus discovery learning on students’ problem-solving ability and motivation, while also examining the influence of learning styles. Using a quasi-experimental pretest-posttest control group design, XI MIPA students at SMA Negeri 9 Bengkulu City were assigned to either a PBL or discovery learning group. Data were collected through tests, questionnaires, and learning style inventories, and analyzed using MANOVA. Results indicated no significant difference between the two models in improving problem-solving ability or motivation. However, learning styles significantly affected both outcomes, with visual, auditory, and kinesthetic learners performing differently. PBL contributed modestly to both variables (2.4% for problem-solving, 0.4% for motivation), and no interaction effect with learning styles was found. These findings highlight the need to align teaching strategies with students' learning styles to support more effective learning. The study offers practical implications for fostering adaptive instruction in chemistry classrooms and enhancing scientific literacy.
Antimicrobial Activity of Eco-enzymes with Various Dilutions As A Natural Disinfectant Lubis, Najla; Damayanti, Rizki; Wardani, Sheila
Jurnal Penelitian Pendidikan IPA Vol 11 No 5 (2025): May
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v11i5.11052

Abstract

Ecoenzyme perfectly utilizes biological waste for non-chemical sanitation products through the fermentation of sugar, organic materials, and water. Ecoenzyme has been used to inhibit the growth of bacteria such as Staphylococcus aureus and Propionibacterium acnes. This study aims to determine the optimum concentration of eco enzyme as a natural antibacterial and disinfectant. This method uses gram-positive bacteria Staphylococcus aureus and gram-negative bacteria Escherichia Coli with the disc method. The dilution variations used were 0, 1:10, 1:50, and 1:100. Ecoenzyme is made from organic materials from pineapple, orange, papaya, starfruit, quinine, and mango skin waste (Bioz1), and coenzyme from pineapple, orange, banana stem, noni, quinine waste (Bioz2). The results showed that a ratio of 1:10 was the most effective dilution variation for inhibition against both types of bacteria. Furthermore, dilution at this concentration can be used as a natural disinfectant. The presence of acetic acid and enzymes (i.e. lipase and amylase) can inhibit certain strains of microorganisms, namely Escherichia coli and Enterococcus sp.
Evaluation of the Potential for Acid Mine Drainage Formation From Pit Lake Walls and its Interaction with the Aquifer System Purwaningsih, Diyah Ayu; Redana, I W; Harmayani, Kadek Diana; Pujianiki, Ni Nyoman
Jurnal Penelitian Pendidikan IPA Vol 11 No 5 (2025): May
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v11i5.11057

Abstract

Pit lakes are water bodies that gradually accumulate in former open-pit mine excavations once mining operations have ceased, typically filled by rainfall, surface runoff, or infiltration from groundwater. Their existence can pose environmental challenges, particularly the development of “acid mine drainage (AMD)”, which is often indicated by low pH values and elevated levels of dissolved metals. This research focuses on evaluating the geochemical properties of pit wall rocks and the water quality within pit lakes in the Separi coal mining region of East Kalimantan. The objective is to determine the likelihood of AMD generation and assess whether contaminants may migrate into the surrounding groundwater system. Field sampling involved collecting materials from pit wall rock, water within the pit lake, adjacent surface water, and groundwater monitoring wells. Mineralogical analysis was performed using X-Ray Diffraction (XRD), while elemental composition was identified through X-Ray Fluorescence (XRF). Water quality parameters such as pH, total dissolved solids (TDS), electrical conductivity, and concentrations of metals—specifically iron (Fe) and manganese (Mn)—were measured using Atomic Absorption Spectroscopy (AAS) and ion chromatography techniques. The findings reveal that several rock samples fall into the Potentially Acid Forming (PAF) category, attributed to their low acid-neutralizing capacity and elevated sulfur content, especially in samples containing pyrite. The pit lake water was found to be acidic (pH 4.2–4.6), with high levels of Fe and Mn, suggesting active sulfide oxidation. Conversely, groundwater from nearby areas displayed more neutral pH values (5.4–6.4) and lower metal concentrations, although some locations still showed contamination risks. These results underscore the need for a comprehensive understanding of geochemical processes and highlight the importance of preventive strategies, such as isolating reactive materials, managing hydrological inputs, and consistently monitoring water quality for long-term environmental protection
Development of Electronic LKPD Problem Based Learning in Differentiated Learning of Ecosystem Material to Improve Critical Thinking and Collaboration Skills of High School Students Phase E Alhusein, Achmad Fanji; Pratama, Anggi Tias
Jurnal Penelitian Pendidikan IPA Vol 11 No 5 (2025): May
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v11i5.11060

Abstract

This study aims to produce teaching materials in the form of electronic LKPD problem based learning on differentiated learning that is feasible, practical, and effective to improve critical thinking skills and student collaboration. This type of research is research and development with the ADDIE procedure. The research was conducted at SMA N 1 Jebus on class X students. Feasibility, practicality, and effectiveness tests were conducted to obtain research data. The field trial design used a quasi-experiment with a control group pretest-posttest design. The instrument feasibility test was assessed by material experts and media experts. Practicality was assessed by biology teachers and students. Product effectiveness was analyzed using descriptive and inferential statistics using the SPSS 29 MANOVA test and using n-gain score analysis. The results of this study are as follows: (1) The electronic LKPD problem based learning differentiated learning produced was declared to meet the feasibility based on the values obtained from the media expert validator of 90% (feasible) and the material expert validator of 100% (very feasible) to improve critical thinking skills and student collaboration in high school; (2) The electronic LKPD for problem based learning of differentiated learning produced meets practicality based on the biology teacher questionnaire in the limited trial, obtaining a score of 94.2% (very feasible) and the student response questionnaire was 90% (very feasible); (3) The electronic LKPD for problem based learning in differentiated learning of ecosystem material is effective in improving critical thinking and collaboration skills of class X SMA students based on the results of the MANOVA test.
Comparison of the Performance of Feed A and Feed B on Productivity and Cost Efficiency at Surodadi Farm, Sleman Tanjung, Dahri; Manurung, Ananda; Warcito, Warcito; Purnamadewi, Yeti Lis
Jurnal Penelitian Pendidikan IPA Vol 11 No 5 (2025): May
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v11i5.11061

Abstract

This study aims to evaluate the productivity and feed efficiency of laying hens through a comparative analysis of two commercial feed types, Feed A and Feed B. A quantitative approach was employed, utilizing independent samples t-test and Revenue to Cost (R/C) ratio analysis. Sample size was determined using Slovin's formula based on uniform criteria of flock size, age, and cage dimensions, resulting in a minimum requirement of 385 hens. To improve accuracy, 2952 Lohmann Brown hens (35–54 weeks old) were used, distributed equally in two cages of 1476 hens each. Key performance indicators included Hen Day Production (HDP), egg mass (g/hen/week), Feed Conversion Ratio (FCR), and net income. The results showed that Feed B provided better performance across all metrics. HDP for Feed B reached 91.49%, higher than Feed A at 88.75%. Total egg mass produced per cage for Feed B was 1638 kg, exceeding Feed A at 1554 kg. Feed B also recorded a more favorable FCR (2.14 vs. 2.25), indicating more efficient feed utilization. Economically, although Feed B was slightly more expensive (IDR 6,352/kg) than Feed A (IDR 6,268/kg), it generated a higher net income of IDR 6,434,870 for the total flock (2952 hens) over the study period. The R/C ratio for Feed B was 1.21, compared to 1.15 for Feed A, indicating relatively greater profitability. These findings suggest that Feed B is a more efficient and economically advantageous option for commercial layer operations aiming to optimize productivity and returns.
Bridging Vocational Needs with Chemistry Content: Designing an Outline of Chemistry Teaching Materials for Textile Dyeing Context Royhan, Muhammad Syahrur; Anwar, Sjaeful; Rohman, Ijang
Jurnal Penelitian Pendidikan IPA Vol 11 No 5 (2025): May
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v11i5.11065

Abstract

The merging of adaptive chemistry subjects (C.1) into the IPAS project subject in the Independent Curriculum causes the chemistry content to be non-specific and not adapted to all vocational elements. This has the potential to hinder students' understanding of relevant chemistry concepts in their vocational context. This study aims to design an outline of chemistry teaching materials that are relevant to the needs of dyeing subjects in Textile Finishing Engineering VHS. The method used is Qualitative Content Analysis (QCA) with four stages to obtain and evaluate chemistry content related to the dyeing context. The results show that there are 19 chemistry contents that have been systematically arranged and validated based on the sequence, details, and their relationship to the dyeing context. For example, the content of electrolyte solution, acid base, ion equilibrium in solution, and reaction rate plays an important role in regulating the affinity of dyes to fibers and the speed of the dyeing process. This outline is useful for teachers or education practitioners as a clear guide to integrating chemistry content and vocational contexts into learning or teaching materials. For students, it can help them understand chemistry concepts that are more contextual and applicable to their vocational fields.
Anatomy and Structure Secretary Hodgsonia Macrocarpa (Blume Cogn.) as Plant Traditional Medicine of the Tribe Besemah for Anti-infective and Degenerative in district Lahat, South Sumatra Tanzerina, Nina; Sibarani , Sarnita; Aminasih , Nita; Junaidi, Endri; Juswardi
Jurnal Penelitian Pendidikan IPA Vol 11 No 5 (2025): May
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v11i5.11066

Abstract

Hodgsonia macrocarpa (Blume) Cogn. is one of the type rare cucurbita​ found in Sumatra. Plants This is a woody liana Cucurbitaceae which is abundant utilized by the tribe   Besemah in Lahat Regency, South Sumatra with Name local Still kadam, as plant drug traditional for treat disease infection including hepatitis, pneumonia, tuberculosis and other diseases degenerative namely liver. This research aims to know structure anatomy and structure secretory as well as its distribution. Study     done in the month January until April 2024, located in Sukaraja Hamlet Subdistrict Longing for Lahat Regency, South Sumatra. Research This use method descriptive and creation preparation with Paraffin and whole mount methods. Based on observation anatomy and structure secretory in H. macrocarpa namely, leaves composed of upper and lower epidermis which are covered cuticle, parenchyma palisade and sponge, network vessels, sieve cells, and non-glandular trichomes in the form of trichome single end pointed and trichome star, while trichome trichome glandular consists of from trichome conoidal and trichome headed stalk short, cell idioblast shaped round and shaped pentagon. Stem arranged by network epidermis, collenchyma, parenchyma, network vessels, found existence glandular trichomes terminal blunt, glandular trichomes terminal pointed, trichomes uniseriate, cell idioblast shaped round, crystal prisms and druse crystals. Roots arranged by epidermis, tissue cork cortex, tissue vessels, sclereids, cells idioblast shaped round, druse crystals and crystals systolic. Type structure secretory H macrocarpha in the form of glandular trichomes, cells idioblasts and crystals. While distribution structure s secretory can found in leaves, stems and roots. in H. macrocarpa. Structure secretory mentioned play a role as place storage metabolite secondary.
Integrating Ethnopedagogy-Based E-Learning to Enhance Creativity of Prospective Elementary School Teachers: Student and Lecturer Perceptions Erfan, Muhammad; Suranti, Ni Made Yeni; Ibrahim; Istiningsih, Siti; Dewi, Nurul Kemala
Jurnal Penelitian Pendidikan IPA Vol 11 No 5 (2025): May
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v11i5.11067

Abstract

In the digital era, integrating local cultural knowledge through ethnopedagogy makes science learning more contextual and engaging. This study examines the practicality of an ethnopedagogy-based e-learning tool for prospective elementary school teachers using the develop phase of the 4-D model. Practicality was assessed through classroom observations and questionnaires administered to both lecturers and students. Observation showed excellent implementation (average score 99.67%). Lecturers’ responses using a 1–5 Likert scale also showed high averages: 4.57 for the Semester Learning Plan, 4.64 for the Student Assignment Plan, 4.41 for the Student Worksheet, 4.35 for Teaching Materials, and 4.55 for the e-learning aspect. Student responses further confirmed the tool’s practicality, with scores of 4.35 for understanding ethnopedagogy, 4.75 for LMS engagement, 4.80 for ease of access and use, 4.46 for facilitating creativity, 4.85 for feedback and evaluation, and 5.00 for learning quality. The use of structured questionnaires provided comprehensive insights into the tool’s usability, cultural relevance, and effectiveness in facilitating interactive learning. Although minor loading issues occurred, they did not hinder learning. These findings indicate that the ethnopedagogy-based e-learning tool is highly practical and supports effective, culturally responsive science education at the elementary level.

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