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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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Effect of Solvent Polarity on Antioxidant and Antidiabetic Activity of Kesambi Leaf Extract (Schleichera oleosa L.) Nursamsiar, Nursamsiar; Marwati, Marwati; Sami, Fitriyanti J.; Nur, Syamsu; Kasmawati, Henny; Asnawi, Aiyi
Jurnal Penelitian Pendidikan IPA Vol 11 No 1 (2025): January
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v11i1.9439

Abstract

Kesambi (Schleichera Oleosa (L.) is one of the beneficial plants in Indonesia which contains fenolic and flavonoids that exhibit antioxidant properties. The presence of antioxidants in plants could be associated with antidiabetic activity of these plants. This research was conducted to determine the antioxidant and antidiabetic activities of n-hexane, ethyl acetate, acetone and methanol extracts from Kesambi leaves. Extraction was carried out by the ultrasonic assisted extraction (UAE) method. The antioxidant activity was determined quantitatively by DPPH and ABTS method, while the antidiabetic activity was evaluated by using α-glukosidase inhibition method. The IC50 values from the determination of antioxidant and antidiabetic activities were obtained by using Microplate reader at the maximum wavelength. Results of the antioxidant determination DPPH method showed that IC50 values of n-hexane, ethyl acetate, acetone and methanol extracts were 414.1993; 57.7862; 6.33 dan 13.4558 µg/mL, respectively. And for ABTS method showed 162.679; 22.6684; 10.7975; dan 146.869 µg/mL. This indicates the acetone and methanol extracts give the best results in antioxidant activity. Meanwhile, IC50 values of in vitro antidiabetic activity of n-hexane, ethyl acetate, acetone and methanol extracts were 99.3235; 272.8723; 1.6799; dan 24.4653 µg/mL, respectively. Acetone and methanol extracts of kesambi leaf give the best results in antidiabetic activity.
Activities, Resources, and Learning Environment: A Case Study of Science Learning at Sekolah Alam Andriani, Nova; Maison; Nazarudin
Jurnal Penelitian Pendidikan IPA Vol 11 No 1 (2025): January
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v11i1.9569

Abstract

This study examines science education activities, resources, and the learning environment at Sekolah Alam Al Fath Jambi Junior High School. Using a case study approach, the research involves direct observations, interviews with teachers and students, and learning materials analysis to understand the impact of various learning methods on student outcomes. The findings highlight that science learning activities align with the Sekolah Alam concept, emphasizing project-based, experiential, nature-based, and collaborative approaches. Learning occurs inside and outside the classroom, utilizing the natural surroundings for exploration and field experiments. Resources include school gardens, outbound areas, natural materials, and collaborations with local experts. The learning environment, assessed through the WIHIC questionnaire, supports student success through dimensions like cohesiveness, teacher support, involvement, task orientation, cooperation, equity, enjoyment, and academic efficacy. This study underscores the effectiveness of nature-integrated and experiential approaches in enhancing science learning outcomes and offers recommendations for advancing educational practices in similar settings.
Viability of Entomopathogenic Fungi (Metarhizium anisopliae) in Residual Media Maggots and Pupa Shell Waste Sucipto, Irwanto; Muhlison, Wildan; Putri, Aprilia Pangestu
Jurnal Penelitian Pendidikan IPA Vol 11 No 1 (2025): January
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v11i1.9603

Abstract

Metarhizium anisopliae is a fungus that acts as an entomopathogen, commonly used to control pest insects (Biological Control Agent). This saprophytic mushroom requires sufficient organic nutrients in the growth medium. Typically, rice or corn is used as the media; however, this poses a challenge as these grains are also consumed by humans as staple foods. Additionally, the price of rice and corn has been increasing steadily. Alternatively, organic materials like maggot residue and pupa shells are byproducts from maggot cultivation that contain high nutritional value but are not utilized optimally. This research aims to identify effective alternative media for the multiplication of Metarhizium anisopliae. The research method involved controlled, homogeneous, and sterile experimental conditions, using a completely randomized design with four treatments and six repetitions. The fungus showed a high conidia density in the control media (rice corn), measuring 15.5 x 108. In chicken manure, a high density of 14.4 x 108 was observed, while the media made from maggot residue and pupa shells showed very low densities of 2.08 x 106 and 6.25 x 106, respectively. This suggests the presence of antimicrobial peptides (AMP), fatty acids, various bacteria, and lignocellulose compounds in the maggot residue and pupa shells. Overall, the organic materials from maggot residue and pupa shells are not effective as growth mediums for the fungus Metarhizium anisopliae.
Integrated PjBL-STEAM Jigsaw on Critical Thinking and Creative Thinking of Students: A Biotechnology Study Salhuteru, Chtherine Pauline; Papilaya, Pamella Mercy; Muskita, Marike
Jurnal Penelitian Pendidikan IPA Vol 11 No 1 (2025): January
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v11i1.9632

Abstract

Critical and creative thinking are two different ways of thinking, but both are important in problem-solving and decision-making. The aim of this study is to determine: 1) The difference in students’ critical thinking skills on biotechnology material after the implementation of integrated PjBL-STEAM Jigsaw; and 2) The difference in students’ creative thinking skills in biotechnology after the implementation of integrated PjBL-STEAM Jigsaw. The results of statistical tests showed a difference in students’ critical thinking skills after the application of integrated PjBL-STEAM Jigsaw, in both the control group and the experimental group. Post-hoc tests revealed a significant difference in critical thinking between Pertiwi High School and SMAK Rehoboth Ambon in the experimental group. The post-hoc tests also showed a significant difference in creative thinking for the control group, with a significant difference between SMAK Rehoboth and SMA Pertiwi Ambon. In the experimental group, no significant difference in creative thinking skills was found. Teachers need to develop learning models that enhance students' critical thinking skills, and provide questions that reflect students' critical thinking abilities, which can help students improve both their critical and creative thinking. Future research should investigate the factors affecting the low critical and creative thinking abilities of students
Bahan ajar Pendidikan Effectiveness of Electronic Student Worksheets (LKPD) Problem-Based Learning (PBL) Based on Social Scientific Problems (SSI) in Improving Problem Solving Skills Septiani, Dilla Eka; Wardhani, Sri; Genisa, Marlina Ummas
Jurnal Penelitian Pendidikan IPA Vol 11 No 1 (2025): January
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v11i1.9636

Abstract

Efforts to improve the quality of education can be made in various ways, one of which is the use of innovative and technology-based teaching materials. Student Worksheets (known with LKPD) are one of the learning tools used by educators to deliver material and improve student understanding. This research intended for developing electronic LKPDSSIPBL based on circulatory system material at SMAN Palembang which is valid, practical and effective.  The development model using 4D refers to Thiagarajan which goes through 4 stages, namely define, design, develop, and disseminate. The population and sample of the study included SMAN 4, SMAN 9, and SMAN 19 Palembang, while the sample of the study was 36 students of class XI.1 and 36 students of class XI.2. Data collection techniques used questionnaires and written tests. Data analysis used validity, reliability, and N-Gain. The results of this study consisted of (1) The define stage obtained a result of 41% meaning that teachers and students need SSI Electronic LKPD (2) The design stage obtained a value of 95% (3) The develop stage showed validation from language experts 83%, materials 81%, media 96%, and learning devices 83% were qualified as very feasible. Practicality, seen from student responses 82% and 2 teachers 98% and 97% showed very practical responses; (4) The dissemination stage shows that the use of PBL-based Electronic Practical Worksheets can improve critical thinking skills and problem-solving skills.
Experiential Learning with STEM-Computational Thinking (STEM-CT) Approach to Develop Students’ Problem Solving Skills Almujaddid, Sayyidah Assadillah; Yuliati, Lia; Wisodo, Hari
Jurnal Penelitian Pendidikan IPA Vol 11 No 1 (2025): January
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v11i1.9639

Abstract

Future challenges for learning require students to not only master concepts, but also develop thinking skills, one of which is problem solving skills. The aim of this study was to identify the effect of Experiential Learning with STEM-Computational thinking (STEM-CT) approach on students' problem solving skills. This research falls under a quasy experiment type with pretest-posttest control group design involving  60 students in 11th grade, especially on static fluid topic. The author collected quantitative data through pre-test and post-test, to assess the difference in students' problem solving skills between the experimental and control groups. Data analysis was carried out using parametric statistics, namely independent sample t-test, and obtained sig. 2 tailed of 0.001 which meets p < 0.05, so it can be concluded that there are differences in problem solving skills between the control class and the experimental class, after being given different treatments. The average N-Gain scores of the experimental class is also higher than control class. It indicates the effect of experiential learning with STEM-CT approach on students' problem solving skills. In the future, more in-depth research is needed related to the effect of experiential learning on various other thinking skills, especially in physics learning.
PENGEMBANGAN E-MODUL BERBASIS ANDROID PADA MATA PELAJARAN INFORMATIKA DI SMK N 9 PADANG Rianda, Pedi; Edidas; Irfan, Dedy; Wulansari, Rizky Ema
Jurnal Penelitian Pendidikan IPA Vol 11 No 1 (2025): January
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v11i1.9652

Abstract

This research aims to develop an Android-based E-Module as a learning medium for Informatics subjects. The E-Module is designed to enhance students’ interest, motivation, and learning outcomes, enabling them to better understand the material comprehensively. The study adopts the IDI (Instructional Development Institute) method, which includes the stages of define, develop, and evaluate. Primary data collected from media experts, lecturers, and students were analyzed using descriptive analysis to assess the validity, practicality, and effectiveness of the media. The findings reveal that, The E-Module is highly valid in terms of material (0.94) and media aspects (0.94). Its practicality is rated as practical by teachers (88.33%) and very practical by students (93.55%). The E-Module effectively improves student learning outcomes, with an increase in the number of students meeting the KKM standard to 88.33%. In conclusion, the E-Module is valid, practical, and effective as a learning medium for enhancing students’ interest, motivation, understanding, and competence.
Investigation and Analysis of Fuzzy Logic Controller Method on DC-DC Buck-Boost Converter Wiryajati, I Ketut; Satiawan, I Nyoman Wahyu; Suksmadana, I Made Budi; Wiwaha, Bagas Briantara Putra
Jurnal Penelitian Pendidikan IPA Vol 11 No 1 (2025): January
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v11i1.9744

Abstract

This study evaluates the performance of PID, Mamdani FLC, and Sugeno FLC controllers on a DC-DC Buck-Boost Converter to determine their suitability for various control applications. The Buck-Boost Converter, operating in conventional configuration, was modeled using MATLAB/Simulink with parameters: input voltage (12 V), output voltage (24 V), resistor (6.5 Ω), capacitor (1.5 µF), and inductor (10 µH). The converter's switching frequency was set at 20 kHz to ensure stability under varying load and input conditions. PID control was implemented using the Ziegler-Nichols tuning method, while fuzzy controllers utilized Gaussian membership functions and 3×3 fuzzy rule bases. Mamdani employed the centroid defuzzification method, whereas Sugeno used weighted average defuzzification. The simulation tested performance metrics, including rise time, overshoot, output stability, and voltage ripple, under conditions of load and input voltage variations. Results show that PID achieved the fastest rise time (72.452 ms) but exhibited higher sensitivity to input changes. Sugeno provided the most stable output with minimal ripple, while Mamdani demonstrated greater adaptability but less stability compared to Sugeno. Statistical analysis confirmed significant differences in rise time but no differences in overshoot across methods. These findings highlight the strengths of each method, with Sugeno being optimal for stability and precision, PID for fast response, and Mamdani for complex fuzzy logic applications.
SPADI-Based Assessment of the Effectiveness of INMAS Electropuncture Therapy in Reducing Shoulder Pain Haryanto, Joko Tri; Purwanto; Zulaika, Chusnul; Widyawaty, Eka Deviany
Jurnal Penelitian Pendidikan IPA Vol 11 No 1 (2025): January
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v11i1.9752

Abstract

The Shoulder Pain and Disability Index (SPADI) is a measurement tool designed to evaluate the level of pain and functional limitations in patients with shoulder complaints. It consists of two main subscales, namely pain scale and disability scale, both of which are very important in measuring the effectiveness of therapeutic interventions in shoulder pain conditions. On the other hand, INMAS (Integrated Neuromuscular Acupuncture System) electropuncture therapy is a non-pharmacological intervention that uses electrical stimulation at acupuncture points to relieve pain. It combines acupuncture principles with neuromuscular stimulation targeted at the muscles and soft tissues around the shoulder. INMAS electropuncture works by improving blood circulation, reducing inflammation, and activating the release of endorphins, all of which aim to reduce pain sensation and improve mobility. This study aims to analyze the comparison of INMAS Method Electroacupuncture Therapy and Massage Therapy on Shoulder Pain Reduction. This study uses a Randomized Controlled Trial (RCT) design. In this study using 2 intervention groups. The first group performed electroacupuncture therapy INMAS method, the second group performed massage therapy. Each group amounted to 30 respondents. The results showed that there was a statistically significant difference between the two treatments (Massage and INMAS) with a value of Asymp. Sig. (2-tailed) is 0.000, (p < 0.05). The statistical results also show that INMAS therapy is more effective in reducing shoulder pain compared to massage therapy (Exact Sig value. (1-tailed) is 0.000, p < 0.05). This study concluded from two treatments to reduce shoulder pain with massage therapy and electroacupuncture therapy INMAS method. From the results of the Mann-Whitney test, it was found that electroacupuncture therapy INMAS method was more effective in reducing shoulder pain compared to massage therapy.
Evaluation of the One Heart Education Program in the Motorcycle Engineering and Business Expertise Competency Handepi, Nogi; Wakhinuddin; Maksum, Hasan; K, Arwizet
Jurnal Penelitian Pendidikan IPA Vol 11 No 1 (2025): January
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v11i1.9772

Abstract

Vocational education plays a critical role in preparing students to meet industry demands and enter the workforce effectively. This study aims to evaluate the One Heart Education Program in the Motorcycle Engineering and Business expertise competency at SMKN 1 Luak District, focusing on context, input, process, and product aspects, using the CIPP evaluation model. The study examines whether the program has been managed optimally. Employing a mixed-method approach, the research uses purposive sampling, involving 36 respondents, 26 for quantitative data and 10 as qualitative informants. Data collection methods include questionnaires and interviews. The evaluation results show that the program achieved an overall score of 72.24, categorized as sufficient, indicating suboptimal management. In detail, the context aspect related to program objectives is rated as poor, though the environmental aspect is good. The input, process, and product aspects are also found to be lacking. Key recommendations include optimizing the context aspect by refining program goals, adopting a centralized approach in the input aspect to explore students’ potential, enhancing the learning process in the process aspect to better align with industrial standards, and improving outcomes in the product aspect. These improvements aim to enhance the overall effectiveness and impact of the One Heart Education Program.

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