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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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Black Cumin Seed Extract as Copper Corrosion Inhibitor in H2SO4 1M: An Experimental and Theoretical Study Elsa, Putri; Hamdiani, Saprini; Yuanita, Emmy; Hadisaputra, Saprizal
Jurnal Penelitian Pendidikan IPA Vol 10 No 10 (2024): October
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v10i10.8739

Abstract

Experimental corrosion tests and theoretical calculation were conduct to investigate the corrosion inhibition mechanism of black cumin seed extract for copper in 1 M H2SO4 solution. Electrochemical testing using electrochemical impedance spectroscopy (EIS) and potentiodynamic polarization (PDP) method showed that BCS adsorbed to form a protective layer on the copper surface with high inhibition efficiency at 500 ppm concentration (73,35%). Increasing the BCS concentration up to 500 ppm causes the charge transfer resistance increase in the EIS measurement, while the corrosion current density measured by PDP decreases. The values of charge transfer resistance and corrosion current density at 500 ppm BCS are respectively 3687 .cm2 and 2.86 μA.cm-2. The BCS is a mixed inhibitor (anodic and cathodic) that adsorbs physically on the copper surface and obey the Langmuir isothermal adsorption model. Quantum chemical calculation and molecular dynamic simulation show that the studied BCS molecules adsorb strongly on the copper surface with parallel orientation mode. The methyl linoleate (MLIN) molecules from BCS produce the most stable adsorption energy of the other studied compound molecules as a result of molecular dynamic simulation.
Analisis Perilaku Hidup Bersih dan Sehat dalam Meningkatkan Kecerdasan Ekologis Siswa Sekolah Dasar Sinta Maria; Harmawati; DS, Yulistina Nur; Anggraeni, Sri Wulan; Rizal, Fahmi
Jurnal Penelitian Pendidikan IPA Vol 10 No 10 (2024): October
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v10i10.8742

Abstract

This study aims to determine clean and healthy living behavior in improving the ecological intelligence of Sukamerta 2 public elementary school students. The method used in this research is descriptive qualitative research. Data collection in this study used observation, interviews, questionnaires and documentation. Data analysis techniques used are data reduction, data presentation and conclusion drawing. The results of this study indicate that teachers have an important role in creating clean and healthy living behavior at school. Teachers are one of the figures modeled by students, so the driving factor in increasing students' ecological intelligence is the teacher. Based on the questionnaire results, it can be concluded that Sukamerta 2 State Elementary School students who practice clean and healthy living behavior are 45 students (64.29%), while those who do not practice clean and healthy living behavior are 25 students (35.71%). So it can be concluded that it is necessary to implement clean and healthy living behavior for all students and is in the good category so that the value of ecological intelligence of students on clean and healthy living behavior is normal or good and in order to create a better school environment in maintaining cleanliness and comfort in learning and teaching activities.
Pengaruh Model Pembelajaran Word square Terhadap Hasil Belajar IPAS Siswa Sekolah Dasar Harmawati; Dewi, Sinta Maria; DS, Yulistina Nur; Sa'diah, Tia Latifatu; Rahmawati, Ani
Jurnal Penelitian Pendidikan IPA Vol 10 No 10 (2024): October
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v10i10.8744

Abstract

This study aims to determine the effect of word square learning model on IPAS learning outcomes of fifth grade elementary school students of Lemahduhur II State Elementary School. This research is a type of quantitative research with a pre-experimental research design with a one group pretest-posttest model. The population used in this study were all students at SD Negeri Lemahduhur II as many as 194 students. The sample taken consisted of 25 students. The technique of collecting research data with Purposive Sampling. Technical data analysis to test the hypothesis was carried out by calculating descriptive and inferential statistics. The data was obtained from the pretest posttest results.  The results of hypothesis testing, there is a significant difference between pretest and posttest. This is obtained by the sig value. (2-tailed) for the test is 0.000 <0.05 then H0 is rejected. So with this hypothesis test shows that there is a positive and significant influence between the word square learning models on the learning outcomes of IPAS elementary school students.
Potential of Binahong Leaves (Anredera cordifolia Ten.) and Shallot Skin (Allium cepa L.) Extract as Biopesticides for Biological Control of Rice Bug (Leptocorisa oratorius F.) Lestari, Fenti Wahyu; Melani, Dewi; Gama, Zulfaidah Penata
Jurnal Penelitian Pendidikan IPA Vol 10 No 10 (2024): October
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v10i10.8755

Abstract

The rice bug is a pest causing decrease rice production. Meanwhile, binahong leaves and shallot skin contain potential materials for making biopesticides. This research aimed to analyze potential of binahong leaves and shallot skin extract as biopesticides and toxicity tested against rice bug. The research was carried out using Completely Randomized Design, biopesticides were made in various concentrations, 0% as a control; 10; 20; 30; 40; and 50. The extract was calculated for yield, pH, and phytochemical screening. Then, biopesticide sprayed on the pests at 24, 48, 72, 96, 120, 144, and 168 hours to observe mortality, LC50, morphology, behavior, biotic, and data analysis using ANOVA followed 0.05 Tukey test. The results showed the extract has potential as a biopesticide with yield value 8,3 – 12; pH value 4,84 – 5,37; and positive secondary metabolite. Meanwhile, toxicity tests showed the highest mortality at concentration 50%, LC50 at 144th hours and 168th hours was 4,373 and 2,002. Besides that, biopesticides changes morphology and behavior pest. Observations abiotic factors showed that rice bug can survive in temperature range of 22,75 – 25oC and relative humidity of 77 - 84%. In the future, it hoped biopesticides can be commercialized to reduce dependence on chemical pesticides.
Development of Diagnostic, Formative and Summative Assessment Instruments in the PjBL Model to Stimulate Students' Critical and Creative Thinking Skills Asiah, Sintya; Festiyed
Jurnal Penelitian Pendidikan IPA Vol 10 No 10 (2024): October
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v10i10.8757

Abstract

It is hoped that current education can produce human resources who have strong critical and creative thinking abilities. Students must have critical and creative thinking skills to be able to solve problems efficiently and effectively. The benchmark for determining student success in learning is through evaluation which includes measurements and assessments. The aim of this research is to develop diagnostic, formative and summative assessment instruments in the PjBL model to stimulate critical and creative thinking skills. This type of research is research & development using the ADDIE model. The results of this research obtained the validity of the assessment instrument in the project based learning model with a valid category. The level of practicality of the assessment instrument was categorized as practical by teachers and students. The results of the effectiveness of the knowledge aspect with the results of the pretest and posttest are seen from the classical completeness of each skill which has reached a level of completeness above the minimum expected score. The N-Gain value shows results that meet the high criteria.
Development of Diagnostic, Formative and Summative Assessment Instruments in the PjBL Model to Strengthen the Profile of Pancasila Physics Students Marjuni; Festiyed
Jurnal Penelitian Pendidikan IPA Vol 10 No 10 (2024): October
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v10i10.8758

Abstract

This research has two purposes. The first is to develop a diagnostic, formative and summative assessment tool using the Project Based Learning (PjBL) model to strengthen the profile of Pancasila physics students. The second is to examine the validity and usability of the developed assessment tool. The first objective outcome is the product of assessment tools in the form of activity and assessment sheets. The outcome of the second objective is to obtain a valid and practical assessment tool that strengthens the student profile of Pancasila. The conclusion from the development of this tool is that the tool developed in the form of activity and assessment pages is practical and suitable for use in the classroom to strengthen the profile of Pancasila physics students.
Evaluation of Environmental Risk from Heavy Metals in Sediments in Port Areas Yusrizal; Abdillah, Nuryasin; Hendrizal, Andri
Jurnal Penelitian Pendidikan IPA Vol 10 No 10 (2024): October
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v10i10.8760

Abstract

This research aims to evaluate the concentration and distribution of heavy metals in sediment in the Port area of ​​PT Pelindo Dumai Branch, which is one of the main ports in Riau Province, Indonesia. Heavy metals such as cadmium, copper, lead, mercury and zinc are known to have significant toxic effects on maritime ecosystems and can accumulate in the food chain, potentially endangering aquatic life and human health. The research methodology involves taking sediment samples from various points around the port area, which are then analyzed using spectroscopic techniques to determine heavy metal concentrations. The results showed that the concentration of heavy metals in sediments varied, with zinc having the highest concentration (average 0.019724 mg/L), followed by copper, lead, cadmium, and mercury. This variation indicates the existence of diverse sources of pollution and uneven distribution in the port area. Although cadmium and mercury concentrations are relatively low, they still raise concerns due to their high toxicity and potential accumulation in the food chain. These results emphasize the need for more intensive environmental monitoring and targeted risk management to reduce the negative impacts of heavy metals on maritime ecosystems and human health. This research provides an important scientific basis for mitigation efforts in port areas, which are crucial to ensuring the sustainability of ecosystems and the well-being of communities that depend on marine resources.
Adaptasi Kurikulum Pada Mata Pelajaran IPA di Sekolah Dasar Inklusi Banda Aceh Aishah; Sa’ud, Udin Syaefudin; Meirawan, Danny; Nurdin, Diding
Jurnal Penelitian Pendidikan IPA Vol 10 No 10 (2024): October
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v10i10.8773

Abstract

The inclusive education programme is a step towards implementing the mandate of the 1945 Constitution and eliminating discrimination in the education system in Indonesia. Through this programme, all children with various needs can learn together with other normal children in the same school. This study aims to identify the form of curriculum adaptation, especially in science subjects at SDN 25 Banda Aceh. This research uses a descriptive qualitative approach with a case study method. Data were collected through interviews, observations and documentation, with the interview subjects being a special mentor teacher and a class teacher at the school. Based on the results of interviews, observations and documentation, curriculum adaptation at SDN 25 Banda Aceh is reviewed from the adaptation aspect and the principle aspect. Curriculum adaptation can be seen in teaching modules or lesson plans accompanied by special notes and adjustments to learning outcomes for children with disabilities in accordance with the Merdeka curriculum. Learning adaptation can be seen in the presence of a special mentor teacher in the classroom and accompanied by the class teacher. Environmental adaptation is not optimal because the school is not optimal. In science learning, adaptations and modifications for children with disabilities are still limited.
Development of Video Learning Media Based on Robert Gagne's Theory (Nine Events of Instruction) in Informatics Subjects at Junior High School Mulyani, Sri; Darmansyah, Darmansyah; Zen, Zelhendri; Yeni J, Fetri
Jurnal Penelitian Pendidikan IPA Vol 10 No 10 (2024): October
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v10i10.8776

Abstract

One component that cannot be separated from the learning process is learning media. Learning media is an essential part of education, regardless of the curriculum, because it plays a crucial role in influencing the quality and success of learning. The Informatics subject is no exception, as it introduces computers to students. This introduction is the initial stage of informatics lessons. In presenting the learning process through computer application materials, good preparation is essential. An educator should do more than just coordinate students in front of the computer, use a loud voice to direct them, or write notes on the blackboard. They must wisely package the teaching materials to make learning enjoyable, allowing students to feel that the classroom is a place to explore while they learn to use a computer. This type of research is development and research (R&D) using the ADDIE model. Product validation tests were conducted by three validators: one material validator, one language validator, and one media validator. The product trial involved 30 seventh-grade students from SMPN 1 Siak Hulu, aimed at assessing the practicality of the developed product. The effectiveness test was conducted by administering pre-test and post-test questions to the students. The results of the video media development research showed a validation level of 86% for the material and 85% for the language, both falling into the very valid category. The product practicality results indicated a practicality level of 91%, also in the very practical category. The effectiveness test yielded a t-value of 16.4.
Development of Learning Media Using the Articulate Storyline Application in Integrated Thematic Learning Alfirzan, Aulia; Miaz, Yalvema; Amini, Risda; Hadiyanto
Jurnal Penelitian Pendidikan IPA Vol 10 No 10 (2024): October
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v10i10.8781

Abstract

This research is motivated by the conventional nature of learning that takes place in the classroom, that is, it is still teacher-centered, not student-centered. This research aims to produce learning media using the Articulate Storyline application in integrated thematic learning that is valid, practical and effective to improve student learning outcomes in class III elementary schools. This research uses research and development (R&D) methods with the ADDIE development model which has five stages, namely Analysis, Design, Development, Implementation, Evaluation. At the analysis stage, observations and interviews were carried out with teachers and students in elementary schools, at the design stage a learning media was designed according to the data and facts obtained. At the development stage of the learning media that has been designed, validation is carried out to find out whether the product is valid for application. Validation is carried out in three stages: first, validation by five validators who are experts in their respective fields with an overall average result of 88 with a very valid category. The results obtained after evaluating the practicality test of the teacher response questionnaire obtained an average score of 91 in the very practical category, and the student response questionnaire obtained an average score of 90 which was in the very practical category. In the effectiveness test, the learning results obtained an average value of 89 in the effective category and for the N-Gain Score an average value of 0.74 was obtained with a percentage of 74, including the effective category. Based on the results of validity, practicality and effectiveness tests, it can be concluded that the learning media using the Articulate Storyline Application in thematic learning is a valid, practical and effective learning media.

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