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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 6,214 Documents
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Analysis of Grade 10 High School Students’ Understanding of Renewable Energy Concepts Using the ANATES Application Munib; Wahab Jufri; Agus Abhi Purwoko; Muh. Makhrus; Joni Rokhmat; AA Sukarso
Jurnal Penelitian Pendidikan IPA Vol 12 No 1 (2026)
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v12i1.11954

Abstract

The purpose of this study is to evaluate how high school grade X students understand the concepts of renewable energy using the ANATES tool. This study uses a descriptive quantitative approach with a sample of 60 students from two Grade X classes at SMAS Darul Falah Pagutan Mataram. The instrument used was in the form of 20 multiple-choice questions developed based on indicators of understanding renewable energy concepts. The test results were analyzed using ANATES to measure the level of conceptual understanding, the level of difficulty, and the discriminating power. The results showed that 25% of students were in the medium understanding category, 46.7% were in the very low category, and 28.3% were in the low category. Most of the questions were in the medium difficulty category (45%) and had varying discriminating power, with 50% classified as good, 5% as sufficient, and 45% as poor. This study recommends the need to improve learning strategies that emphasize an inquiry-based approach, the contextual integration of ESD (Education for Sustainable Development), and the use of evaluation tools that can provide informative feedback to enhance students' conceptual understanding of renewable energy.
Molecular Identification of Symbiont Bacteria on Brown Alga Padina australis Hauck Marina Flora Oktavine Singkoh; Sebrina Kuron; Stella Deiby Umboh; Deidy Yulius Katili; Beivy Kolondam; Agustina Tangapo
Jurnal Penelitian Pendidikan IPA Vol 12 No 1 (2026)
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v12i1.11978

Abstract

The research aimed to identify the symbiont bacteria in brown alga Padina australis from the coastal waters of Molas, Manado city, Indonesia. Fresh samples were crushed with a mortar and pestle until smooth. A total of 1 g of the smooth alga was added into a test tube containing 9 mL of distilled water to obtain a 10-1 dilution. Next, 1 mL of a 10-1 solution was put into another test tube containing 9 mL of distilled water and vortexed for 15 minutes to obtain 10-2 dilution and so on until a 10-8 solution was obtained. 100 μL of solution from each series 10-4 – 10-8 was spread on NA media and incubated at a temperature of 27–29°C for 24 hours. DNA extraction was carried out following the modified Genomic DNA Mini Kit (Geneaid) protocol. DNA amplification was carried out using the 16S rRNA gene. Amplification using primers for the 16S rRNA gene BKXF (forward) and BKXR (reverse) resulted in fragments 1152 base pairs in length. The results of BLAST analysis of SK1 symbiont bacterial isolates found a Max score and total score of 1369, a query coverage of 97%, and a Percent Ident of 97.73%, which showed similarity to bacterial nucleotides of Bacillus cereus.
Utilization of Palm Plants (Arecaceae) in the Acehnese Community in Gandapura District, Bireuen Regency Cut Roswita; Erlia Hanum; Afkar; Nadia Aldyza; Syifa Saputra; Rahmawati
Jurnal Penelitian Pendidikan IPA Vol 12 No 1 (2026)
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v12i1.12152

Abstract

The purpose of this study was to determine the utilization of sugar palm (Arecaceae) plants in the Acehnese community in Gandapura District, Bireuen Regency. In collecting data, this study distributed questionnaires, semi-structured and open-ended free interviews to various age groups with a total of 11 questions. The research sample in this study amounted to 153 people. The sampling method was carried out using the purposeful sampling method; namely, the population has homogeneous and stratified elements/members. Samples were taken based on age groups, namely young adults (aged 20-35) who are actively working to earn a living; middle adults (aged 36-50) who are generally married and have a permanent residence; and older people (> 50 years) who are considered village leaders/elders and have influence in the village. The results showed that 13 types of sugar palm plants were utilized. The utilization of 13 types of plants consists of 7 types as food ingredients, 7 types as craft materials, 5 types as building materials, 7 types for traditional medicine, 2 types for traditional ceremonies and 5 types of ornamental plants. To determine the utilization of plant species diversity, an analysis of the level of importance of a plant species for the community was carried out, namely by calculating the Cultural Significance Index (ICS). The highest ICS value was found in the Cocos nucifera plant, namely 293, followed by Areca nut (Areca catechu) and Areca nut (Arenga pinnata) with values of 113 and 111.
Rhizophora apiculata Kombucha Fermented Beverage: Secondary Metabolite Content and Antioxidant Activity Agustina Monalisa Tangapo; Susan Marlein Mambu; Parluhutan Siahaan; Erika Kolompoy; Marsia Pasassa
Jurnal Penelitian Pendidikan IPA Vol 12 No 1 (2026)
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v12i1.12349

Abstract

Kombucha is a functional beverage produced by the fermentation of bacteria and yeast (SCOBY). This fermented beverage contains various bioactive compounds with antioxidant potential. Rhizophora apiculata is a mangrove plant that contains bioactive compounds with rich health benefits. Based on this, modifying kombucha fermentation with a mangrove leaf tea substrate can increase kombucha's effectiveness as an antioxidant. This study aims to analyze the secondary metabolite content profile and antioxidant activity of R. apiculata kombucha. Kombucha fermentation was carried out for seven days with a 10% sugar concentration. Analysis of the secondary metabolite content profile of R. apiculata kombucha was carried out using GC–MS analysis. Antioxidant activity was evaluated using the DPPH assay. The results showed a decrease in pH during the fermentation period and an increase in total acidity. The results of GC–MS analysis of R. apiculata kombucha showed 23 secondary metabolite compounds with varying retention times, area sizes, and chemical structures. The composition of the identified compounds was dominated by acetic acid (26.9%), 5-hydroxymethylfurfural (HMF, 12.38%), N′-(diaminomethylidene) butanehydrazide (7.68%), 1,2,3-propanetriol, 1-acetate (6.91%), and methyl α-D-rhamnopyranoside (5.12%). R. apiculata kombucha has the potential to act as an antioxidant, with an IC₅₀ value of 27.16 ppm, which is classified as a very strong antioxidant.
Encyclopedia: Nature-Based Learning Initiative to Enhance Students' Critical Thinking Audrey Louise Makatita; Jeany Tomatatala; Mayesti Rambu Jati; Mia Fransiska mangi Dimu
Jurnal Penelitian Pendidikan IPA Vol 11 No 12 (2025): December
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v11i12.12421

Abstract

This study aims to implement a Nature-Based Learning Initiative as an innovative solution to enhance students' critical thinking skills at SD Inpres Hiliwuku, East Sumba. The school faces significant challenges due to its remote location and a lack of electricity and internet access, which restricts conventional teaching methods. This approach utilizes the surrounding natural environment as a "living laboratory" and primary learning resource, supported by the use of a printed Nature-Based Encyclopedia as a physical reference for students to verify field findings. Data analysis results indicate a significant improvement in critical thinking abilities, where the average pre-test score of 49.75 (Insufficient category) increased drastically to 80.25 (Good category) in the post-test. All students showed improvement, with 70% reaching the "Good" to "Very Good" categories. In conclusion, nature-based learning supported by contextual encyclopedias is an effective, low-cost, and sustainable educational alternative that optimizes local potential to overcome infrastructure limitations in remote areas.
Development of Interactive Media Using Kodular in The Learning Evaluation Course: Supporting the Implementation of the Merdeka Curriculum Pipi Deswita; Adelia Alfama Zamista; Sylvina Tebriani
Jurnal Penelitian Pendidikan IPA Vol 11 No 12 (2025): December
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v11i12.12488

Abstract

This study addresses the lack of specific and interactive teaching media aligned with the Merdeka Curriculum in the Learning Evaluation course for Physics Education students. The research aims to develop and validate Kodular-based interactive media that facilitate independent and competence-based learning. The study employed the ADDIE development model consisting of five stages: Analysis, Design, Development, Implementation, and Evaluation. Data were collected through interviews, expert validation sheets, and practicality questionnaires, and analyzed using descriptive statistics to determine validity and practicality levels. The validation results showed that the media achieved very high scores in content, language, and media feasibility, indicating strong validity. Implementation trials involving lecturers and students demonstrated high practicality, particularly in ease of use, clarity, and relevance of content. The Kodular-based media integrates quizzes, simulations, and collaborative features that enhance engagement and understanding of evaluation concepts. The findings conclude that the developed interactive media is both valid and practical for supporting the implementation of the Merdeka Curriculum and improving students’ abilities in designing contextual and authentic learning evaluation instruments
Multimethodology Analysis of Determinants of Breast Cancer Diagnosis Machine Learning Dita Anggriani Lubis; Yuli Irnawati; Ayu Trisni Pamilih; Ria Fazelita Br Gultom
Jurnal Penelitian Pendidikan IPA Vol 12 No 1 (2026)
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v12i1.12497

Abstract

Breast cancer remains one of the most prevalent and life-threatening diseases worldwide, highlighting the urgent need for accurate and interpretable diagnostic models. While machine learning has shown promise in classification tasks, many existing models lack transparency and overlook the individual contribution of cellular features essential for clinical decision-making.This study proposes an integrative and explainable framework to identify the most influential cellular-level features in distinguishing between benign and malignant breast tumors. Using a publicly available dataset comprising 569 observations and 32 numerical features, we conducted a multi-step analysis. Feature relevance was first evaluated using Pearson correlation. Random Forest and Recursive Feature Elimination (RFE) were employed to rank and refine the feature subset, followed by Principal Component Analysis (PCA) for dimensionality reduction and pattern visualization. SHapley Additive exPlanations (SHAP) were utilized to interpret individual predictions. Complementary statistical tests, including t-tests and chi-square analyses, assessed associations between tumor characteristics and diagnosis. A logistic regression model was developed to evaluate predictive performance.Key cellular features—such as mean radius, texture, and concavity—were consistently identified as highly predictive of diagnosis. RFE demonstrated that fewer than 10 features were sufficient for optimal classification. The logistic regression model achieved high accuracy, offering a simpler yet effective alternative for prediction.By combining statistical methods with interpretable machine learning, this study presents a transparent and clinically relevant approach to breast cancer diagnosis. The integration of SHAP values bridges the gap between model performance and interpretability, supporting more informed and personalized clinical decisions. Future work should consider external validation, image-based features, and patient demographic variables to enhance generalizability.
The Effectiveness of a Creative Approach Combining PBL and NHT Models in Biology Learning to Improve Critical Thinking Skills Arlian Firda; Yulia Syafitri
Jurnal Penelitian Pendidikan IPA Vol 12 No 1 (2026)
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v12i1.12518

Abstract

This study aims to determine the effectiveness of a creative learning approach combining the Problem Based Learning (PBL) and Numbered Head Together (NHT) models in improving students’ critical thinking skills in biology learning. This study was conducted due to the low level of students’ critical thinking skills caused by the dominance of conventional learning methods that limit students’ active participation. A quasi-experimental method with a non-equivalent control group design was employed. The sample consisted of two tenth-grade classes at SMA Negeri 2 Pekanbaru selected through purposive sampling, with class X.2 as the experimental class and class X.9 as the control class, each consisting of 36 students. Data were collected using pretest and posttest instruments based on critical thinking indicators and observation sheets of teacher and student activities. The results showed that the experimental class obtained higher mean pretest and posttest scores (70.65 and 86.94) than the control class (63.43 and 80.00). The N-gain analysis indicated that both classes were in the moderate category; however, the experimental class achieved a higher N-gain score (0.58) compared to the control class (0.48). The t-test results revealed a significant difference between the two classes (Sig. = 0.016 < 0.05). The integration of PBL and NHT promotes active learning, collaboration, and problem-solving processes that support the development of students’ critical thinking skills. In conclusion, the creative approach combining PBL and NHT is effective in enhancing students’ critical thinking skills and biology learning outcomes.
Pengaruh Efikasi Diri terhadap Prestasi Akademik dan Keterlibatan Belajar: Sebuah Tinjauan Literatur Sistematis Rizka Indah Primawati; Wiji Wiji; Sri Mulyani
Jurnal Penelitian Pendidikan IPA Vol 12 No 1 (2026)
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v12i1.12609

Abstract

Academic self-efficacy is a critical psychological construct consistently linked to student success. However, the extensive body of research is fragmented, necessitating a systematic synthesis to understand the key factors, outcomes, and underlying mechanisms associated with student’s self-efficacy. The purpose of this systematic literature review is to synthesize and evaluate the current evidence on the effect of self-efficacy on academic achievement and learning engagement. Following the PRISMA guidelines, a comprehensive search was conducted across Science Direct database. The review synthesized findings from 25 articles, focusing on empirical studies that examined the antecedents and consequences of self-efficacy in relation to academic outcomes. The findings reveal that self-efficacy serves as a significant predictor of academic achievement and learning engagement. Results indicate that students with high self-efficacy demonstrate greater persistence, set more ambitious goals, and exhibit higher resilience in challenging subjects. The discussion highlights that this relationship is mediated by both social support and cognitive engagement strategies. In conclusion, developing self-efficacy is essential for optimizing educational outcomes
The Effect of Land Slopes Covered with Paving Blocks on Rainwater Infiltration Andi Marini Indriani; Gunaedy Utomo
Jurnal Penelitian Pendidikan IPA Vol 12 No 1 (2026)
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v12i1.12668

Abstract

Rapid urban development has increased impervious surface coverage, causing higher surface runoff and reduced rainwater infiltration that contribute to flooding and groundwater depletion. Permeable pavement systems, such as paving blocks, are widely applied to support sustainable urban water management. This study analyzes the effect of land slope covered with hexagonal paving blocks on rainwater infiltration performance. Laboratory experiments were conducted using a rainfall simulator with a constant intensity of 50 mm/h. Three slope variations were evaluated, namely 0%, 2%, and 4%. The paving blocks had a compressive strength of 25 MPa (Class B) and were installed on a compacted sandy bedding layer. Infiltration and surface runoff volumes were measured at five-minute intervals until stable conditions were achieved. Results indicate that land slope significantly influences infiltration behavior. The highest infiltration performance occurred at a 2% slope, with a maximum infiltration volume of approximately 570 mL recorded between the 40th and 45th minutes. Conversely, the 0% slope showed decreased infiltration due to soil saturation, while the 4% slope exhibited lower efficiency because the increased slope accelerated surface runoff. These findings demonstrate that hexagonal paving blocks installed on a moderate slope enhance infiltration, reduce runoff, and support urban flood mitigation and groundwater recharge.

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