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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 6,882 Documents
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Improving Teaching Quality and Undergraduate Students' Critical Thinking Skills through Contextual Teaching and Learning Integrated with Lesson Study in a Basic Physics Course Atika Ulya Akmal; Leni Zahra; Aissy Putri; Ummitul Fitri
Jurnal Penelitian Pendidikan IPA Vol 12 No 7 (2026)
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v12i7.14765

Abstract

This study aimed to improve teaching quality and undergraduate students' critical thinking skills through the implementation of the Contextual Teaching and Learning (CTL) model integrated with Lesson Study in a Basic Physics Concepts course. The study employed Classroom Action Research using the Lesson Study approach, which was conducted through four cycles consisting of the PLAN–DO–SEE stages. The participants were 60 first-semester students enrolled in the Elementary School Teacher Education Program at Universitas Negeri Padang. Data were collected through classroom observations, interviews, field notes, and a critical thinking assessment rubric. The data were analyzed descriptively by reducing, displaying, and interpreting the findings from each cycle. The results showed continuous improvement in both teaching practices and students' critical thinking skills throughout the implementation. Lesson Study enabled lecturers to design contextual lesson plans, facilitate collaborative learning, provide authentic learning experiences, and conduct reflective teaching practices. Students demonstrated progressive improvement in analyzing contextual problems, providing evidence-based reasoning, drawing conclusions, and communicating their ideas during classroom discussions. The final average critical thinking score reached 3.17 on a 4-point scale, indicating a good level of critical thinking. These findings suggest that integrating CTL with Lesson Study effectively enhances teaching quality while fostering students' critical thinking skills in Basic Physics learning.
From Biomass Waste to Functional Iron Oxides: Mechanistic Understanding, Structure Engineering, and Environmental Applications Dewi Kurnianingsih Arum Kusumahastuti; November R. Aminu; Agung R. Gintu; Emmanuel Hernanda Yustisia Susanto; Gecia Ovi Wulandari
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.v12i6.14780

Abstract

Biomass-mediated green synthesis of iron oxide nanomaterials has gained increasing attention as a sustainable alternative to conventional chemical methods, offering lower energy requirements, reduced chemical toxicity, and intrinsic surface functionalization. Unlike previous reviews that mainly summarize synthesis routes or environmental applications separately, this review establishes an integrated structure–property–performance framework to systematically correlate biomass chemistry, phase evolution, and functional remediation behavior of iron oxide nanomaterials. A structured scoping review was conducted by analyzing 42 peer-reviewed articles published between 2010 and 2024, selected from major scientific databases using predefined inclusion criteria emphasizing crystalline phase identification, quantitative structural characterization, and measurable environmental performance. Comparative synthesis of the collected data reveals that phytochemical constituents, particularly polyphenols and organic acids, regulate Fe³⁺ reduction, chelation equilibria, nucleation kinetics, and phase selectivity among Fe₃O₄, γ-Fe₂O₃, and α-Fe₂O₃. Fe₃O₄-rich systems exhibited smaller particle sizes (10–30 nm), higher saturation magnetization (30–70 emu g⁻¹), and superior pollutant removal efficiencies (90–99%), while γ-Fe₂O₃ showed moderate magnetic properties (20–50 emu g⁻¹) and α-Fe₂O₃ displayed larger particle sizes (30–60 nm), lower magnetization (<2 emu g⁻¹), but greater thermodynamic stability. Adsorption capacities ranged from 30–250 mg g⁻¹ depending on pollutant type and phase composition. Despite these promising performances, variability in biomass composition, phase instability, and inconsistent testing protocols remain major barriers to reproducibility and scalability. This review provides a quantitative and mechanistic framework to guide rational synthesis design, improve reproducibility, and accelerate scalable deployment of biomass-derived iron oxide nanomaterials for environmental remediation.
Identitas Kimia Calon Guru Kimia: Studi Cross-Sectional pada Berbagai Angkatan Masuk Azwa Fadilla Wafiq; Oktavia Sulistina; Anugrah Ricky Wijaya
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.v12i6.14799

Abstract

Chemistry identity shapes students’ engagement and persistence in learning chemistry. This study profiled chemistry identity among Chemistry Education students, examined differences across entry cohorts, and tested gender differences in chemistry identity. A quantitative cross-sectional survey was conducted with 176 students from the Chemistry Education Study Program at Universitas Tanjungpura using the 20-item Measure of Chemistry Identity (MoChI) on a 5-point Likert scale (overall reliability α = 0.91). Overall chemistry identity did not differ significantly across cohorts (p = .755), and no significant cohort differences were found in any MoChI subconstruct. Descriptively, value-related interest was the strongest component (M = 4.21–4.48), whereas feeling-related interest was the next strongest (M = 3.72–3.88). Mastery experiences (M = 3.29–3.49) and verbal persuasion (M = 3.09–3.23) were moderate, while internalized identity was the weakest dimension (M = 2.98–3.41). A Mann–Whitney U test showed a significant gender difference, with male students scoring higher than female students (p = .008, r ≈ .20). These findings suggest that students generally perceive chemistry as valuable, but internalizing a “chemistry person” identity remains less developed and requires more structured mastery experiences, credible recognition, and supportive learning environments for development.
Impact of Plant Growth Promoting Rhizobacteria (PGPR) on Nitrogen Uptake and Yield of Palu Local Shallots Lisa Indriani Bangkele; Sri Sudewi; Idris; Ratnawati; Arfan
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.v12i6.14802

Abstract

Plant Growth-Promoting Rhizobacteria (PGPR) play an important role in improving soil microbial populations and enhancing plant growth and nutrient uptake. This study aimed to evaluate the effect of different PGPR concentrations on bacterial colony populations, growth performance, biomass production, and nitrogen uptake of Palu Valley shallot plants. The experiment consisted of four treatments: control (F0), PGPR 10 mL (F1), PGPR 15 mL (F2), and PGPR 20 mL (F3). The observed variables included bacterial colony population, number of shallot bulbs, fresh biomass, dry biomass, and nitrogen uptake. The results showed that PGPR application increased the bacterial colony population in soil, with the highest population recorded in treatment F3 (3.90 × 10⁶ CFU g⁻¹ soil). The average number of shallot bulbs increased from 9 bulbs plant⁻¹ in the control to 12 bulbs plant⁻¹ in treatments F2 and F3. Fresh biomass and dry biomass also increased with higher PGPR concentrations, reaching 11.95 g and 2.42 g respectively in F3. Nitrogen uptake showed a gradual increase from 1.61% in the control to 1.69% in F3. These findings indicate that PGPR application improves soil microbial populations, plant growth, biomass accumulation, and nitrogen uptake in Palu Valley shallot plants, with the 20 mL PGPR (F3) treatment providing the most effective results.
Microparticle of Phenolic Compound and its Herbal Extracts: Fabrication, Characterization, and Therapeutic Application Aisia Nurul Jasmine; Finna Setiawan; Kartini; Veerakiet Boonkanokwong; Aditya Trias Pradana
Jurnal Penelitian Pendidikan IPA Vol 12 No 5 (2026)
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v12i5.14810

Abstract

Phenolic compounds in herbal extracts exhibit broad therapeutic potential (antioxidant, anti-inflammatory, antidiabetic, antimicrobial, neuroprotective), yet are hindered by instability, poor solubility, and low bioavailability—critical limitations restricting their use in pharmaceutical and functional food products. This review aims to evaluate the fabrication techniques, characterization methods, and therapeutic applications of phenolic microparticles to address these research gapsA systematic approach was employed through searches on Google Scholar and ScienceDirect, applying inclusion criteria for original full-text studies reporting fabrication techniques, polymers, characterizations, or biological activities. Dominant techniques included spray drying, freeze drying, emulsification/coacervation, and ionic gelation, with primary wall materials comprising maltodextrin, chitosan, pectin, and PLGA. Characterization encompassed FTIR, SEM, DSC/TGA, particle size analysis, encapsulation efficiency (>70%), and release profiles in SGF/SIF media. Results demonstrate that microencapsulation enhances storage stability, gastrointestinal resilience, and bioavailability of phenolic compounds from diverse sources (bauhinia, moringa, citrus), while preserving antioxidant and antidiabetic activities. This review contributes to standardized formulation development for herbal pharmaceuticals and functional foods, although randomized clinical trials remain necessary to validate clinical benefits.
Polystyrene Microplastics in Aquatic Rearing Systems: Impacts on Growth Performance and Histomorphometry of the Giant Freshwater Prawn (Macrobrachium rosenbergii) Nurul Suwartiningsih; Luqman Hakim Yusuf; Rani Swita; Rani Marsela; Dian Eka Wijayanti; Aulia Fayzha Aszhara; Iga Novianti
Jurnal Penelitian Pendidikan IPA Vol 12 No 7 (2026)
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v12i7.14817

Abstract

Polystyrene (PS) microplastics are widely detected in aquatic environments, particularly in freshwater ecosystems, and may pose ecological risks to aquatic organisms. However, information on how PS microplastics affect the giant freshwater prawn, an economically important freshwater aquaculture species, remains limited, particularly at the tissue level. This study therefore investigated the effects of PS microplastics in rearing media on microplastic accumulation, growth performance, and histomorphometry of the giant freshwater prawn. Following a three-day acclimation period, prawns were exposed to four concentrations of PS microplastics (0, 1, 10, and 100 mg/L) for 14 days. Growth parameters (length and weight), microplastic abundance in organs (gills, intestine, and muscle), and histomorphometry of the gills, intestine, and muscle were evaluated using hematoxylin–eosin staining. Data were analyzed using analysis of variance or Kruskal–Wallis tests followed by Duncan’s test and regression analysis. The results showed that microplastic abundance in the rearing media significantly increased microplastic accumulation in the gills and muscle (p < 0.05), but not in the intestine (p > 0.05). Exposure to PS microplastics did not significantly affect growth performance or gill lamella length (p > 0.05). However, significant alterations were observed on intestinal histological parameters and muscle myofiber structure (p < 0.05). These findings demonstrate that PS microplastics can induce tissue-level alterations in M. rosenbergii despite the absence of short-term growth effects.
The Impact of Fermentation on the Physical and Chemical Properties of Green and Roasted Robusta Coffee Beans Annisa Lutfi Alwi; Anni Nuraisyah; Rizky Nirmala Kusumaningtyas
Jurnal Penelitian Pendidikan IPA Vol 12 No 7 (2026)
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v12i7.14819

Abstract

Conventional coffee decaffeination often relies on chemical solvents that can alter quality and raise processing costs. Although biological fermentation has been studied, research typically evaluates fermentation and roasting separately. Additionally, the use of civet-derived microorganisms as fermentation inoculants is less explored compared to spontaneous, yeast, or lactic acid bacteria-based fermentations. Therefore, this study investigated the interaction between civet-derived microbial inoculum and fermentation duration on the physicochemical characteristics of Robusta coffee before and after roasting. Fully ripe Robusta coffee cherries were fermented in sealed fermenters using civet-derived inoculum at 0%, 50%, and 100% concentrations for 24, 48, and 72 h under controlled conditions; each treatment was replicated 3 times. Density, moisture content, and caffeine concentration were determined in green and medium-roasted beans using standard methods and HPLC analysis. Fermentation significantly affected caffeine concentration and several physical properties of coffee beans. In roasted beans, caffeine content ranged from 0.20% to 0.34%, with the lowest value observed at 100% inoculum for 72 h and the highest at 50% inoculum for 24 h. Extended fermentation reduced caffeine by up to 35.3% (0.34% to 0.22%). These findings demonstrate that civet-derived microbial fermentation can serve as a sustainable biological decaffeination strategy while influencing coffee responses during roasting.
Epistemological Beliefs about Physics Learning: The Role of Gender, Grade Level, and Ethnicity Background toward Quality and Inclusive Education Oktavina Pandango; Sentot Kusairi; Sujito
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.v12i6.14855

Abstract

This study explores high school students' epistemological beliefs about physics learning in East Nusa Tenggara (NTT) Province and evaluates the effects of gender, grade level, and ethnicity. Utilizing a descriptive-quantitative survey design, the study involved 390 science students (grades 10–12) across six high schools. Data were gathered via the validated Beliefs and Attitudes Toward Physics and Learning (BAPL) instrument and analyzed using a three-way ANOVA. The overall average BAPL score was . Statistics revealed that gender significantly impacted overall beliefs (F = 3.99, p = 0.05), with females reporting more positive baseline scores (70.00  6.74) than males (68.55 7.34). Grade level also exerted a significant main effect (F = 3.60, p = 0.04), showing more sophisticated views in higher grades. Conversely, the main effect of ethnicity was highly insignificant (F = 0.006, p = 0.94). While no significant overall three-way interaction was found (F = 0.85, p = 0.43), a dimension-specific three-way interaction emerged exclusively within the Relevance of Physics in Everyday Life (RLE) dimension (F = 3.05, p = 0.05). These findings suggest that uniform school systems act as epistemic equalizers across ethnic backgrounds in NTT, though gender-sensitive and context-aware pedagogy remains essential to foster sophisticated physics beliefs.
Guided Inquiry with STEAM: Fostering Critical Thinking on Fluid Statics Concepts Prima Warta Santhalia; Diane Noviandini
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.v12i6.14876

Abstract

Critical thinking is one of the higher levels of thinking. This study aims to determine the level of critical thinking of students using the STEAM-integrated guided inquiry learning model on static fluid material. The research method used is mixed methods that focuses on the design of embedded experimental models. The subjects in this study consisted of 11th grade high school students in Salatiga. Data from this study were analyzed quantitatively and qualitatively. The conclusion of this study is that there is an increase before and after being taught using STEAM-integrated guided inquiry learning. This is evidenced by the results of the analysis of students' critical thinking levels which were previously in the good category of 3.12%, moderate 31.25%, poor 28.12%, and very poor 37.5% and after learning using STEAM-integrated guided inquiry learning are in the very good, good, and moderate categories. The percentages are very good 6.25%, good 53.12%, and moderate 40.62%.
An Analysis of the Needs for Developing a CPS–EIS (Collaborative Problem Solving for Environmental Issue-Based Socio-Scientific Issues) Based Environmental Change E-Module as an Effort to Improve Students' Critical Thinking Skills Endah Pratiwi; Baskoro Adi Prayitno; Umi Fatmawati
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.v12i6.14893

Abstract

This study aims to analyze the need for developing an e-module based on Collaborative Problem Solving for Environmental Issue-Based Socio-Scientific Issues (CPS–EIS) on environmental change as an effort to improve students' critical thinking skills. This research employed a descriptive design with a needs analysis approach, conducted in December 2025 at a public high school in Karanganyar, involving 10th-grade students and biology teachers. Data were collected through Likert-scale questionnaires and interviews, then analyzed using percentage techniques and qualitative interpretation. The results indicate that although the level of difficulty of environmental change material was relatively low (42.57%), the current learning process remains less engaging and lacks structured problem-solving activities. Students showed a high need for multimedia integration (76.00%), strong readiness for collaboration (84.28%), and high interest in critical thinking-oriented learning (84.00%). From the teachers’ perspective, there was an absolute need (100%) for e-modules that present real-life environmental cases, facilitate collaboration, provide clear problem-solving steps, and integrate multimedia elements. These findings highlight a gap between existing learning conditions and the expectations of interactive, student-centered, and contextual learning. In conclusion, the development of a CPS–EIS-based e-module is strongly needed as an innovative solution to support meaningful learning, bridge theory and real-world environmental issues, and enhance students’ critical thinking skills in the digital era.

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