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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.
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Articles 127 Documents
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Search results for , issue "vol 12 no 6 (2026)" : 127 Documents clear
The Effect of Complete Feed on Dry Matter Intake (DMI), Crude Protein Intake (CPI) and Metabolite Status in Female Fat-Tail Sheep Poespitasari Hazanah Ndaru; Veronica Margareta Ani Nurgiartiningsih; M. Halim Natsir; Mashudi Mashudi; Irida Novianti; John Miftah Ahmad
Jurnal Penelitian Pendidikan IPA Vol 12 No 6 (2026)
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v12i6.4659

Abstract

This study aimed to evaluate dry matter intake (DMI), crude protein intake (CPI), and metabolite status, including blood urea nitrogen (BUN), glucose, and total protein, in female fat-tail sheep fed a complete feed. The study was conducted from July to September 2022 at a farmer group managed by PT Juara Agroniaga in Kanor Village, Bojonegoro Regency, East Java, Indonesia. A total of 200 female fat-tail sheep aged 1–2.5 years with an average body weight of 27 ± 4.65 kg were reared in 10 group pens (20 animals per pen). Feed intake was recorded daily for six weeks, and blood samples were collected to determine BUN, glucose, and total protein. Data were analyzed descriptively. The results showed that DMI and CPI were 71.00 ± 5.88 and 6.83 ± 0.57 g/kg BW0.75, respectively. Metabolite status showed BUN of 25.15 ± 6.94 mg/dL, glucose of 83.83 ± 14.43 mg/dL, and total protein of 4.54 ± 2.58 g/dL. The complete feed was consumed at an acceptable level under farmer conditions, as reflected by the observed DMI. however, the high fiber content and relatively low crude protein level may have contributed to suboptimal metabolite profiles. In conclusion, the nutritional quality of the complete feed influenced nutrient intake and was reflected in the metabolite status of female fat-tail sheep
Qualitative and Quantitative Traits of Thin Tail Ewes in Bojonegoro East Java, Indonesia Irida Novianti; Mashudi; M. Halim Natsir; Poespitasari H. Ndaru; Veronica Margareta Ani Nurgiartiningsih; Sambas Widiyanto
Jurnal Penelitian Pendidikan IPA Vol 12 No 6 (2026)
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v12i6.4662

Abstract

Thin-tail sheep is a local genetic resource widely raised by farmers and requires conservation through appropriate breeding programs. This study aimed to characterize quantitative and qualitative traits of thin-tail ewes reared at PT Juara Farm, Bojonegoro. A total of 66 ewes aged 1–4 years were observed, with quantitative traits including body weight, body length, body height, and chest girth, and qualitative traits focusing on tail shape. Data were analyzed descriptively. The results showed that all body measurements increased with age, with body weight ranging from 23.08 ± 3.83 kg in 1 – <2 years to 29.25 ± 3.79 kg in 3–4 years. Similar increasing trends were observed for body length, body height, and chest girth. Three tail shapes were identified: triangular (48.48%), straight (42.42%), and sigmoid (9.10%). The coefficient of variation indicated that body weight had higher variability compared to other traits. In conclusion, thin-tail ewes exhibit age-related increases in body size with moderate phenotypic variability, providing baseline information for breeding and conservation programs.
Optimizing Lime Mordant Conditions for Cotton Dyeing with Dragon Fruit Peel Extract Syamsuddin Syamsuddin; Jusman Jusman; Indriani Indriani; Ni Ketut Sumarni; Yulina Christien Morokuhi
Jurnal Penelitian Pendidikan IPA Vol 12 No 6 (2026)
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v12i6.8474

Abstract

This study investigates the extraction and application of natural colorants from dragon fruit (Hylocereus polyrhizus) peels for cotton fabric dyeing. A maceration process produced a concentrated anthocyanin-rich extract, with absorption peaks at 475 nm and 536 nm. Experiments were conducted using a completely randomized design with three replicates per treatment. The effects of lime (Citrus aurantifolia) mordant concentration, pH, and immersion time on dye uptake and retention were measured using UV-Vis spectrophotometry. Dye retention, calculated from absorbance differences before and after fabric immersion and post-wash, served as an indicator of color stability. Optimal retention was observed at 2% mordant concentration and pH 6.5, with absorbance-based dye retention values of 0.212 at 475 nm and 0.215 at 536 nm. Higher mordant concentrations and lower pH reduced dye stability and brightness, while immersion time significantly influenced retention, with peak values at 475 nm after 30 minutes and improved retention at 536 nm after 120 minutes. These results demonstrate the potential of dragon fruit peel extract as an eco-friendly textile dye and highlight the importance of optimizing mordant concentration, pH, and immersion time to achieve vibrant, durable colors.
Analysis of High School Students’ Chemical Mental Models Based on Three Levels of Chemical Representation: A Literature Study I Wayan Suja; I Gusti Lanang Wiratma; Ida Bagus Nyoman Sudria; Qonita Awliya Hanif
Jurnal Penelitian Pendidikan IPA Vol 12 No 6 (2026)
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v12i6.10979

Abstract

This study aimed to determine the profile of the chemical mental models of high school students and to describe and explain the factors that caused the formation of alternative mental models in students' minds. This research was classified as a document analysis involving 15 theses in the Chemistry Education Study Program, Universitas Pendidikan Ganesha (Undiksha) as research subjects and students’ chemical mental models as the research object. Data collection was done by using a checklist. The data collected underwent descriptive analysis. The results of the study showed that students' chemical mental models included Scientifically Correct as much as 0–28.65%; Partially Correct as much as 23.03%–90.58%; specific misconceptions reaching 0.48%–58.53%; and No Response as much as 0–49.07%. Factors causing the formation of alternative mental models in students' minds include a low understanding at the submicroscopic level, overgeneralization, ignorance of the meaning of chemical symbols, a lack of information related to the complexity of the problem at hand, a lack of understanding of prerequisite concepts, analogy errors, and errors in the learning materials. In general, alternative mental models are arise when students do not understand the submicroscopic structure underlying the properties of substances.
Pengembangan Lembar Kerja Siswa Elektronik (E-LKPD) Fisika Berbasis Problem Based Learning (PBL) untuk Meningkatkan Keterampilan Berpikir Kritis Peserta Didik Kelas X Nisrina Hasna Mustofa; Pujianto; Jumadi
Jurnal Penelitian Pendidikan IPA Vol 12 No 6 (2026)
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v12i6.11675

Abstract

Critical thinking skills are essential in 21st-century education. However, physics learning in schools still relies on conventional teaching materials and limited instructional approaches, resulting in students' low critical thinking skills. Therefore, this study aimed to develop a Problem-Based Learning (PBL)-based Physics Electronic Student Worksheet (E-LKPD) and examine its feasibility and effectiveness in improving students' critical thinking skills. This research employed a Research and Development (R&D) approach using the Four-D (4-D) development model. The effectiveness of the developed E-LKPD was evaluated using a pretest–posttest control group design. Data were collected through interviews, observations, questionnaires, tests, and documentation. The results showed that the developed E-LKPD was highly feasible based on expert validation, practical based on students' responses, and effective in improving students' critical thinking skills. The experimental class achieved a higher N-Gain score (0.364, medium category) than the control class (0.265, low category). These findings indicate that integrating PBL into interactive digital worksheets supports student-centered learning and promotes students' critical thinking skills. Therefore, the developed PBL-based Physics E-LKPD can be used as an effective digital teaching material for improving students' critical thinking skills.
Perancangan Kayu Gelam Sebagai Sensor Pengukur Ketinggian Air untuk Mendukung Terwujudnya Green Electronics Khairul Saleh; Iskhaq Iskandar; Assaidah
Jurnal Penelitian Pendidikan IPA Vol 12 No 6 (2026)
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v12i6.11738

Abstract

The water level of peat land in the South Sumatra area required to be monitored for mitigating the wildfire or flooding annual risk happends in the region. The Gelam wood is easily found in the peat land thus the utilization as a water level sensor should be a perfect solution. Therefore, we designed a Gelam wood sensor as the sensing element, a voltage divider circuit as a transducer and a modem connected to a website to display the data for the user. The accuracy of the sensor is 98% with a resolution of about 1 cm in height. The system design was implemented to monitor the water level height of a campus lake and compared the output with a calibrated ultrasonic sensor. The reading error between both sensors was about 1.9%. Therefore, the use of Gelam wood as a water level measurement sensor can be developed towards the realization of 'green electronics' to obtain energy efficiency in producing an electronic component; eco-friendly and non-toxic materials thus it can reduce the electronic waste accumulated every year.
Molecular Docking and ADMET Prediction of Bioactive Compounds from Centella asiatica, Coenzyme Q10, and Ethyl Ascorbic Acid Targeting PPAR Receptors as Potential Antioxidant Agents Nur Khofifah; Dini Khofifah; Ni Luh Dewi Aryani
Jurnal Penelitian Pendidikan IPA Vol 12 No 6 (2026)
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v12i6.12362

Abstract

Excessive ultraviolet exposure induces oxidative stress that accelerates skin aging, yet effective natural modulators of antioxidant pathways remain limited. This study investigated the potential of bioactive compounds from Centella asiatica, Coenzyme Q10, and ethyl ascorbic acid as PPAR receptor agonists associated with antioxidant regulation. An in silico approach was applied using molecular docking with Molegro Virtual Docker and ADME prediction analysis. Docking performance was evaluated using rerank scores and interaction analysis with key amino acid residues. Coenzyme Q10 and ethyl ascorbic acid isomers showed the most negative rerank scores (−62.08 and −55.65 kcal/mol), indicating strong receptor affinity. Asiaticoside and madecassoside formed extensive hydrogen and steric interactions with Arg284 and His280. ADME analysis revealed that ethyl ascorbic acid exhibited optimal balance between solubility, permeability, and safety. These findings suggest that ethyl ascorbic acid and Coenzyme Q10 are promising candidates for antioxidant therapy through PPAR activation. This study provides computational evidence supporting the development of natural antioxidant agents targeting oxidative stress–related skin damage.
Development of Teaching Materials to Improve Student Learning Outcomes Using Learning Videos for Grade V Elementary School Emi Liarni; Ramalis Hakim; Abna Hidayati; Zuwirna
Jurnal Penelitian Pendidikan IPA Vol 12 No 6 (2026)
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v12i6.12460

Abstract

This research aims to develop video-based mathematics teaching materials for grade V elementary school students, as a solution to low learning outcomes and the use of conventional teaching materials that are less attractive. The development model used is ADDIE, which includes the analysis, design, development, implementation, and evaluation stages. The analysis was carried out by curriculum studies, observations, and interviews with teachers to find out the needs of students. The design stage involves planning materials, video structures, interactive quizzes, and contextual practice questions. Product development is validated by material, media, and language experts using Aiken's V analysis, which indicates all aspects are in the valid category. Implementation is carried out in learning to assess the effectiveness and practicality of teaching materials. The results of the study show that video teaching materials are effective in improving students' understanding of mathematics materials, and are considered practical and interesting by teachers and students. This product is able to present material visually, interactively, and relevant to daily life. Therefore, this video-based teaching material can be an alternative to improve the quality of mathematics learning in grade V of elementary school.
Development of SDG-Oriented Natural and Social Sciences Teaching Materials Using Mind Mapping for Grade IV Elementary School Students Idrus Salam; Ramalis Hakim; Darmansyah; Zelhendri Zen
Jurnal Penelitian Pendidikan IPA Vol 12 No 6 (2026)
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v12i6.12476

Abstract

This research aims to develop valid, effective, and practical teaching materials based on mind mapping for Natural and Social Sciences (IPAS) subjects for fourth grade elementary school students, which is motivated by low learning outcomes and student motivation due to the use of less interesting conventional materials. The method used is development with the ADDIE model (Analysis, Design, Development, Implementation, Evaluation), with data collected through class observation, interviews, expert validation, questionnaires, as well as pre-tests and post-tests. The results of validation by material, media, and language experts show that the teaching material is very valid with Aiken's V scores of 0.97, 0.89, and 0.97, respectively. An effectiveness test with an N-Gain score showed a significant improvement in learning outcomes, with scores of 0.7765 (small group) and 0.7971 (large group), both in the high category. The paired sample t-test showed a significance value of p = 0.000 (< 0.05), indicating a significant difference between the pre-test and the post-test. In terms of practicality, the teaching materials received a very positive response from teachers (96.36%) and students (93.25%), which showed that the materials were easy to use, interesting, and helped the understanding of IPAS concepts. Thus, the mind mapping-based teaching materials developed in this study have proven to be feasible to improve the quality of science learning in fourth grade basic education.
Promoting Critical Thinking through an SDG-Integrated STEAM E-Module for Grade X High School Students Pauzi; Rayendra; Abna Hidayati; Ulfia Rahmi
Jurnal Penelitian Pendidikan IPA Vol 12 No 6 (2026)
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v12i6.12484

Abstract

This research aims to produce STEAM-based E-Modules that are valid, practical, and effective in improving students' critical thinking skills in mathematics subjects. This research uses the ADDIE development model with five steps: Analysis, Design, Development, Implementation, and Evaluation. The validity of the E-Module was tested by four validators, namely experts in instruments, media, materials, and languages. Trial I involved 3 students, while trial II was carried out on 2 educators and 25 students. The results showed that the STEAM-based E-Module on linear program materials had excellent validity, with a score of 83% for product experts, 93% for subject matter experts, and 93% for linguists. The practicality of this E-Module is very high, with the trial of students obtaining a score of 98% and educators 96%, both of which are in the category of "Very Practical". The effectiveness of this E-Module can be seen from the increase in student learning outcomes, namely from a pretest score of 49.60 to a posttest score of 81.40, with an N-gain of 0.62 which is included in the "Medium" category. In addition, students' critical thinking abilities earned an average score of 3.03 out of 4, which indicates the "Pretty Good" category. The results of this study show that STEAM-based E-Modules are effective in improving students' critical thinking skills and are practically used in mathematics learning.

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