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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 5,869 Documents
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Desain dan Evaluasi Teknis Mesin Pengupas Kulit Kacang Macadamia (Macadamia integrifolia) PTR-TETA20 Rantung, Ruland; Tooy, Dedie; Amelia, Putri; Mandey, Lucia Cecilia
Jurnal Penelitian Pendidikan IPA Vol 11 No 6 (2025): June
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v11i6.10969

Abstract

Macadamia (Macadamia integrifolia) is a high-value crop not widely known in Indonesia and still processed using conventional shelling methods that are time-consuming and inefficient. This study aimed to design and evaluate the PTR-TETA20 macadamia nut sheller to improve post-harvest efficiency. The research was conducted from May to July 2024 at the Faculty of Agriculture, Sam Ratulangi University. The methodology involved the design, construction, and performance testing of the machine using experimental methods and descriptive data analysis. The PTR-TETA20, measuring 30 × 23 × 113 cm and powered by a 1/4 HP motor with a pulley and V-belt system at 1467 RPM, was tested using 1 kg of macadamia nuts in three repetitions. The average working capacity reached 38.43 kg/hour, with a yield of 92.52%. Nut integrity was recorded as 40.22% whole, 36.10% halved, and 23.66% broken. Moisture content was 2.6% (whole), 2.56% (halved), 2.83% (broken), and 9.52% (shells). The results indicate that PTR-TETA20 offers a practical shelling solution for small-scale producers. However, machine performance can be improved by optimizing roller spacing and ensuring uniform nut drying.
Informal Apprenticeship Learning Model to Improve Layer Chicken Farm Workers' Competency: A Case Study at CV. Arto Moro Farm Purwito, Lasi
Jurnal Penelitian Pendidikan IPA Vol 11 No 6 (2025): June
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v11i6.10993

Abstract

This research aims to develop a grounded theory model of informal apprenticeship to improve worker competencies at the layer chicken farm CV. Arto Moro Farm, Blitar Regency, East Java. A qualitative approach using grounded theory methodology was employed, with data collection through participatory observation, in-depth interviews, and documentation involving farm owners and workers. Data analysis was conducted through coding stages following grounded theory procedures. The research results show that the apprenticeship process is led by the owner as instructor and takes place in an informal atmosphere with a direct learning model (learning-by-doing). This process successfully transfers knowledge, skills, and attitudes, significantly improving worker competencies. This study contributes an applicable informal apprenticeship model for human resource development in the layer chicken farming sector
The Level of Community Perception, Motivation, and Participation in Tourism Village Management (Case Study of Pamegarsari Tourism Village, Parung District, Bogor Regency) Zai, Arihsyah Putra; Muntasib, Endang Koestati Sri Harini; Sulistyantara, Bambang
Jurnal Penelitian Pendidikan IPA Vol 11 No 6 (2025): June
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v11i6.11010

Abstract

Pamegarsari Tourism Village, officially established and inaugurated in October 2021 by the Minister of State-Owned Enterprises (BUMN) alongside the Regent of Bogor Regency, is managed by the Village-Owned Enterprise (BUMDes) with the aim of improving community welfare and Village Original Income (PADes) through community participation. However, the management activities of the tourism village have not been implemented effectively. This is primarily because the BUMDes faces various issues, particularly the perceived low active participation of the community. This lack of participation is suspected to stem from the village's establishment and inauguration being based solely on the natural potential of Situ Lebak Wangi, without adequately considering local community perception and motivation towards future tourism village management. This study aims to analyze the level of community perception, motivation, and participation in the management of Pamegarsari Tourism Village, as well as to analyze the relationship between perception and motivation on community participation. The research employed a descriptive method with a qualitative approach. Data on community perception, motivation, and participation were gathered from in-depth interviews with 100 purposively selected respondents. This research data was analyzed using a Likert scale measurement and Spearman's rho correlation analysis to test the relationship between perception and motivation on community participation. The study results indicate that community perception is predominantly neutral (54%), with a significant portion also being negative (24%). Community motivation is largely low (74%), and participation is predominantly low (86%). Furthermore, there is a strong and significant relationship between perception and participation (r=0.684; p=0.000), and a very strong and significant relationship between motivation and participation (r=0.882; p=0.000). The predominantly negative perception and low motivation directly correlate with low levels of community participation, showing a negative correlation.
Analysis of the Relationship between Brain Waves and Learning Readiness of Students with Disabilities Using Electroencephalography (EEG) Signals Haryanti, Tining; Haq, Amirul; Rina
Jurnal Penelitian Pendidikan IPA Vol 11 No 6 (2025): June
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v11i6.11013

Abstract

This study aims to analyze the relationship between brainwave activity and the learning readiness of students with disabilities by utilizing EEG (Electroencephalography) signals. EEG signals are used to detect the brain's electrical activity that reflects mental states, including focus, concentration, and readiness to receive learning. This study was conducted at SLB 'Aisyiyah Krian with a quantitative approach through EEG signal measurement before and during the learning process. The results showed a significant correlation between the dominance of alpha and beta waves with learning readiness, while the dominance of theta and delta waves indicated unpreparedness. These findings provide a foundation for the development of a more inclusive, objective, and adaptive neurotechnology-based learning approach for students with disabilities.
Studi Optimasi Distribusi Air di Daerah Irigasi Manikin, Kabupaten Kupang, Menggunakan Program Dinamik Kharistanto, Robertus Tegar Kurnia; Limantara, Lily Montarcih; Saputra, Anggara Wiyono Wit; Maulana, Mokhamad Rusdha
Jurnal Penelitian Pendidikan IPA Vol 11 No 6 (2025): June
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v11i6.11025

Abstract

This study aims to optimize water distribution in the Manikin Irrigation Area, Kupang Regency (200.98 ha), using deterministic dynamic programming to enhance irrigation efficiency and agricultural productivity. The cropping pattern follows a rice–rice–fallow system, wherein rice is cultivated in the first two seasons and land is left fallow in the third. Data used includes rainfall (2014–2023), irrigation discharge, crop water requirements, climatological parameters, and economic variables. The model maximizes profit as the objective function while considering three constraints: water availability, land area per season, and land area per irrigation stage. The study divides the irrigation network into eight stages and applies forward recursive and backtracking procedures to determine optimal water allocation. Before optimization, only 90 ha (44.78%) were irrigated in the first season and 170 ha (84.59%) in the second. After optimization, coverage increased to 190.23 ha (94.65%) and 200.98 ha (100%), respectively. Corresponding profits rose by 117% in the first season and 18% in the second. These results demonstrate that dynamic programming effectively improves water use efficiency and land productivity in water-limited agricultural systems.
The Development of Multimodal-Based Natural Science Teaching Materials to Improve the Science Literacy of Class IV at MI Masjid Al Akbar Surabaya Ashari, Chasan; Mariana, Neni; Widiasih
Jurnal Penelitian Pendidikan IPA Vol 11 No 6 (2025): June
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v11i6.11028

Abstract

The results of field studies showed that the natural science literacy of students in Indonesia was still low. Indonesia’s performance in science literacy assessments like PISA has shown the need for improvement due to factors like limited resources, inadequate facilities, and uninspiring teaching materials that are not oriented toward the science literacy component. This study focused on the effectiveness of the use of textbook-oriented provisioning capability in science literacy by using multimodal learning materials. The textbook’s development method used a 4D model (define, design, development, and disseminate) to write. Textbook design, which was applied to the topic of “Animal Life Cycle,” was implemented among 42 students of the 4th grade at Madrasah Ibtidaiyah (MI) Masjid Al Akbar Surabaya. Effectiveness is determined by consideration of the effect and the normalized percentage gain value, while the hypothesis was tested using the Independent T-test. The results showed that the textbooks that were developed using multimodal-based science can improve the literacy skills of students. Based on the size of the effect size, textbooks developed with a multimodal approach were found effective in improving students' science literacy skills. The improvement occurred in all the competencies and knowledge of scientific literacy. The hypothesis testing showed that there was a significant difference in the ability of science literacy between the class that uses textbooks with multimodal-based and the class that uses the regular textbooks used in schools.
Comparison of Correlation, PBIAS and RSR between Monthly, Daily, and Hourly GPM Rainfall Data Setiyowati, Yunita Ayu; Harisuseno, Donny; Sajali, M. Amar
Jurnal Penelitian Pendidikan IPA Vol 11 No 6 (2025): June
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v11i6.11068

Abstract

Accurate precipitation data is critical for hydrological modeling, flood forecasting, and water resources planning. This study evaluates the performance of satellite-based rainfall estimates from the Integrated Multi-satellite Retrievals for GPM (IMERG) Final Run Version 06 by comparing them with ground-based observations from six stations in the Jatigede Reservoir catchment, West Java, Indonesia. The analysis covers the 2014–2023 period, aligning with the reliable availability of IMERG Final Run products, and examines three temporal resolutions: monthly, daily, and hourly. Statistical evaluation employed Pearson correlation coefficient (r), the ratio of RMSE to observed standard deviation (RSR), and Percent Bias (PBIAS). Results show strong agreement at the monthly scale (r = 0.84, RSR = 0.34, PBIAS ≈ +24%), suggesting suitability for long-term water resource assessments. However, performance declines at shorter timescales. At the daily scale, IMERG underestimates rainfall (PBIAS ≈ -27%) with moderate correlation (r = 0.24). The hourly scale shows the poorest performance (r = 0.10, RSR > 3.0, PBIAS < -50%), indicating limitations in capturing short-duration, high-intensity rainfall typical in tropical regions. These findings underscore the importance of temporal aggregation and bias correction when applying IMERG data for operational hydrology and flood modeling
An Meningkatkan Keterampilan Berpikir Kreatif Siswa Menggunakan Lembar Kerja Berbasis STEM-PjBL Mulyaningrum, Sekar Tria; Fadiawati, Noor; Herlina, Kartini
Jurnal Penelitian Pendidikan IPA Vol 11 No 6 (2025): June
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v11i6.11077

Abstract

This study aims to determine the characteristics, teacher and student responses, and the effectiveness of STEM-PjBL-based LKS on the material of making peuyeum to improve creative thinking skills in the developed biotechnology material. The method used is a mixed method with an embedded experimental model. This study involved 10 biology teachers and 20 students in Lampung Province at the pre-intervention stage and after the intervention involving 32 grade X students of SMA Negeri 3 Bandar Lampung and 2 teachers as research observers and 1 teacher as a teacher. Data collection was carried out through a LKS validation questionnaire on the aspects of material suitability, construction, and readability for experts, a teacher response questionnaire covering material suitability and readability, and a student response questionnaire after implementing learning using STEM-PjBL-based LKS, as well as a set of pretest-posttest instruments for creative thinking skills. The data analysis technique in this study used the paired sample t-test. The average percentage of expert validation results for the material suitability aspect was 89.77%, construction 90.62%, and readability 87.50% so that the STEM-PjBL-based peuyeum making worksheet was declared valid and had a “very high” criterion according to Arikunto's assessment standards with characteristics following the STEM-PjBL syntax and containing local wisdom in the form of peuyeum. The teacher's response to the material suitability aspect was 93.18% and readability 91.66% and the average student response was 84.81% so that the worksheet was suitable for use in biology learning with a "very high" criterion. The results of the paired sample t-test stated that there was a significant difference between the pretest (41.85) and posttest (72.99) scores of students, so that the STEM-PjBL-based peuyeum making worksheet that was developed effectively improved creative thinking skills.
Pengembangan Media Aurbook (Augmented Reality Book) untuk Meningkatkan Hasil Belajar Siswa Kelas IV Pada Pembelajaran IPAS Materi Kearifan Lokal Rukmana, Vina Indriana; Setyasto, Novi
Jurnal Penelitian Pendidikan IPA Vol 11 No 6 (2025): June
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v11i6.11078

Abstract

The purpose of this study was to develop and test the feasibility, effectiveness, and practicality of the Aurbook (Augmented Reality Book) media in order to improve student learning outcomes. This research is categorized as development research (R&D) using the Borg and Gall model. A total of 36 fourth-grade students of SDN Kalinegoro 3 in the 2024/2025 academic year were involved in this study, with a small-scale trial conducted on 12 class IVA students and a large-scale trial on 24 class IVB students. The validation results from media, material, and language experts show that the Aurbook media is declared "very feasible" with an average score of 83%, which reflects its feasibility. The level of satisfaction that is "very good" is shown by the results of the teacher and student response questionnaire, with a score of 100% from teachers and 87% from students, which illustrates the practicality of e-teaching materials. The effectiveness of the Aurbook media is proven by the results of the t-test which shows a significance value of 0.000 (< 0.05) and an N-gain of 0.69, which is included in the "moderate" category. The criteria for eligibility, practicality, and effectiveness to improve learning outcomes in science learning for grade IV at SDN Kalinegoro 3 on local wisdom material have been met by the Aurbook media.
Compacted Dry Biocellulose Formulated from Xanthosoma Undipes K. Koch (Taro): Characterization of Physical and Chemical Properties Ardiani, Septia; Rahmayanti, Handika Dany; Akmalia, Nurul; Jasmine, Annisa
Jurnal Penelitian Pendidikan IPA Vol 11 No 6 (2025): June
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v11i6.11098

Abstract

This study aims to evaluate the physical properties of compacted dry biocellulose derived from Xanthosoma undipes K. Koch (taro). Three types of substrates were fermented using Acetobacter xylinum: nata de taro (NDT), nata de coco-taro (NDC-T), and nata de coco-taro-pineapple-tomato (NDC-TPT). The resulting biocellulose products were compacted using a hot press (5000 kgf/cm² for approximately 15 minutes at 120°C) and then dried at 30°C to produce solid biopolymer sheets. Characterization included thickness measurement, FTIR spectroscopy, UV-Vis spectroscopy, and SEM-EDX microscopy. Results showed that the cellulose chemical structure remained intact after compaction. The NDC-TPT sample exhibited the highest porosity and water absorption capacity, along with significant UV light transmittance, making it a promising candidate for biodegradable film applications and active moisture-absorbing materials. Microscopic analysis revealed that substrate composition strongly influenced fiber density and pore size, with NDT showing the densest structure and NDC-TPT the most porous.

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