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Jurnal Pijar MIPA
Published by Universitas Mataram
ISSN : 19071744     EISSN : 24601500     DOI : -
Core Subject : Science, Education,
Biochemistry, Genetics & Molecular Biology Chemistry Mathematics Physics
Jurnal Pijar MIPA (e-ISSN: 2460-1500 & p-ISSN: 1907-1744) is an open-access scientific periodical journal published by the Department of Mathematics and Science Education, Faculty of Teacher Training and Education, University of Mataram. Jurnal Pijar MIPA publishes original articles on current issues and trends in mathematics-science-science education studies. In addition, this journal addresses issues concerning environmental education and environmental science. The journal scopes are: a. Physics and Physics Education b. Chemistry and Chemistry Education c. Biology and Biology Education d. Natural Science and Science Education e. Mathematics and Mathematics Education f. Environmental and Environmental Education
Arjuna Subject : Umum - Umum
Articles 25 Documents
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Search results for , issue "Vol. 18 No. 3 (2023): May 2023" : 25 Documents clear
Formulation and antibacterial effectiveness of fermented soybean husk extracts from industrial waste of tempe as eco-friendly hand sanitizer gel Ayu Larasati; Baiq Nuraini Ayu Pita; Uswatun Hasanah Yarfaryh; Eva Haerani; Murniati Murniati
Jurnal Pijar Mipa Vol. 18 No. 3 (2023): May 2023
Publisher : Department of Mathematics and Science Education, Faculty of Teacher Training and Education, University of Mataram. Jurnal Pijar MIPA colaborates with Perkumpulan Pendidik IPA Indonesia Wilayah Nusa Tenggara Barat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jpm.v18i3.2895

Abstract

This study aims to determine the formulation and antibacterial effectiveness of fermented soybean seed husk extract from tempe industrial waste as an environmentally friendly hand sanitizer gel. This type of research is an experimental study with variations in fermented soybean husk extract concentration, namely 0%, 5%, 15%, 20%, 50%, and 100%. Observational data were tested by analysis of variance ANOVA at a 5% level using Co-Stat software. Suppose there is a significant difference, a further test of Honest Significant Difference (BNJ) (organoleptic test), a further test of Orthogonal Polynomial Method (MOP) (spreadability, pH, viscosity), descriptive analysis test (flavonoid test, homogeneity test, antibacterial activity test is carried out) and test the total number of germs). The results showed that the fermented extract of soybean seed husk was positive for flavonoids, characterized by a bright yellow color change when added with 10% NaOH. The concentration of fermented soybean husk extract significantly affected the hand sanitizer gel's organoleptic properties, dispersion, total pH, and viscosity. Based on the organoleptic test, the panelists preferred the clear gel color in the F1 treatment (0%) and the thick, slightly liquid gel form with a slightly scented soybean husk in the F3 treatment (10%). The concentration treatment of soybean husk fermented extract (50%) was the best treatment based on good homogeneity, total pH 4.35, viscosity 2405 cPs, following SNI No.06-2588, and spreadability of 4.47 cm which was close to hand gel. For commercial sanitizers, the diameter of the inhibition zone against Escherichia coli bacteria ATCC 2922 and Staphylococcus aureus ATCC 2923 is 14 mm and 12 mm.
Analysis of online learning difficulties in biology learning at Senior High School Baiq Indah Komalasari; Dadi Setiadi; Muhammad Yamin
Jurnal Pijar Mipa Vol. 18 No. 3 (2023): May 2023
Publisher : Department of Mathematics and Science Education, Faculty of Teacher Training and Education, University of Mataram. Jurnal Pijar MIPA colaborates with Perkumpulan Pendidik IPA Indonesia Wilayah Nusa Tenggara Barat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jpm.v18i3.3130

Abstract

Research on online learning difficulties during the COVID-19 pandemic has been carried out. The aim is to describe the process and learning difficulties while online learning. This research is descriptive and qualitative. Sampling is done in three ways: interviews, questionnaires, and documentation. The data obtained is reduced, presented, reviewed, and then conclusions are drawn. As a result, the difficulties experienced by students during the process of learning online, namely the difficulty in using WhatsApp and chat group entry, make students unable to focus on learning, difficulties in the form of signals, and learning disabilities-line is a difficulty that is often experienced, learning is difficult because of signal constraints and wasteful internet quota. In conclusion, online learning difficulties are the inability of students to use learning applications such as What tApp, Google Classroom, Google Meet, and Zoom meetings. Some factors that make learning difficult are constrained by unstable signals and a lack of communication between students and teachers.
The effect of kurut wood (Dysoxylum parasiticum) and jackfruit wood (Artocarpus heterophyllus) on the natural fermentation of palm juice and palm sugar quality Siti Hikmatul Asyura; Syamsul Bahri; Dewa Ayu Citra Rasmi
Jurnal Pijar Mipa Vol. 18 No. 3 (2023): May 2023
Publisher : Department of Mathematics and Science Education, Faculty of Teacher Training and Education, University of Mataram. Jurnal Pijar MIPA colaborates with Perkumpulan Pendidik IPA Indonesia Wilayah Nusa Tenggara Barat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jpm.v18i3.3256

Abstract

This study aims to determine the effect of the concentration of kurut wood and jackfruit wood on the yield, pH, and percentage of reducing sugars of palm sugar. This experiment used a completely randomized design (CRD) which consists of 6 treatments, i.e., 0 g/L, 3 g/L, 4 g/L, 5 g/L, 6 g/L, and 7 g/L. The data were analyzed by Analysis of Variance (ANOVA) using Co-Stat software and posthoc analysis for chemical score using Orthogonal Polynomial Method (MOP). Statistical analysis of chemical value shows that the increase in the concentration of kurut wood and jackfruit wood (0 g/L – 7 g/L) significantly affects the decrease of the total microbe and percentage of reducing sugars, and the increase of the amount of yield, palm juice, and sugar pH. The 7 g/L treatment was the best, with different analysis results for kurut wood and jackfruit wood. In kurut wood, the total microbes counted 5.46 CFU/ml; yield 495.33g; pH 6.72; and reducing sugar 0.96. In jackfruit wood, total microbes counted 5.6 CFU/ml; yield 386.33g; pH 6.68; and reducing sugar 0.85.
The best formulation of compounds contained in herbal plants as sunscreen: A review Aliefman Hakim; Burhanuddin Burhanuddin; L. Rudyat Telly Savalas; Zelisa Nudia Fitri; Jono Irawan
Jurnal Pijar Mipa Vol. 18 No. 3 (2023): May 2023
Publisher : Department of Mathematics and Science Education, Faculty of Teacher Training and Education, University of Mataram. Jurnal Pijar MIPA colaborates with Perkumpulan Pendidik IPA Indonesia Wilayah Nusa Tenggara Barat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jpm.v18i3.4444

Abstract

The harmful effects of exposure to light (UV) can be prevented by using sunscreen. This study aims to determine the best formulation contained in various herbal plants to be used as a manufacturing material sunscreen. The method in this study is the study of literature from the research journal database on the internet, namely through google scholar and Proquest University of Mataram. Sunscreens are assessed in terms of light protection factor expressed by the SPF value (Sun Protection Factor) to determine the effectiveness of sunscreen preparations or the ability to withstand UV rays. Several types of herbal plants that grow in various regions in Indonesia contain photoprotective bioactive compounds. Aromatic ginger (Kaempferia galanga L.) is a herbal plant widely used as an ingredient in sunscreens with a high protection category. Cinnamic derivatives, namely ethyl para-methoxycinnamate (EPMS), are one of the compounds contained in aromatic ginger and can be used as a manufacturing material sunscreen that is good and safe for the skin.
Development of hormone system teaching material for distance learning to improve students digital literacy Ian Fadilah; Rusdi Rusdi; Rizhal Hendi Ristanto
Jurnal Pijar Mipa Vol. 18 No. 3 (2023): May 2023
Publisher : Department of Mathematics and Science Education, Faculty of Teacher Training and Education, University of Mataram. Jurnal Pijar MIPA colaborates with Perkumpulan Pendidik IPA Indonesia Wilayah Nusa Tenggara Barat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jpm.v18i3.4587

Abstract

This research aims to develop hormone system teaching material for distance learning DL through Moodle to improve students' digital literacy. This research uses the Research and Development (R&D) method with the ADDIE model, which has the stages of analysis, design, development, implementation, and evaluation. The developed teaching material was tested for feasibility on the material, media, and language aspects by six expert validators. Two biology teachers and students from senior high school SMAN 3 Bekasi also tested the developed teaching material. The results showed that the hormone system teaching material for DL through Moodle had an average value of 3.40 (very valid) on the material aspect, 3.30 (very valid) on the media aspect, and 3.03 (valid) on the language aspect. The Biology teacher’s trial obtained an average value of 3.45 (very valid) and an average of 3.32 (very valid) for the students’ trial. The hormone system teaching materials for DL through Moodle has a final average value of 3.30 from a maximum value of 4.00. It shows that the hormone system teaching material for DL through Moodle is very valid to be used as a learning medium for hormone systems in schools and is expected to improve students' digital literacy.
Development of constructivism-based physics tools to build generic science skills for high school students Ardiansyah Ardianyah
Jurnal Pijar Mipa Vol. 18 No. 3 (2023): May 2023
Publisher : Department of Mathematics and Science Education, Faculty of Teacher Training and Education, University of Mataram. Jurnal Pijar MIPA colaborates with Perkumpulan Pendidik IPA Indonesia Wilayah Nusa Tenggara Barat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jpm.v18i3.4660

Abstract

This research and development aim to develop constructivism-based physics teaching aids to build students' generic science skills on static fluid material. The research subjects chosen were class XI Senior High School 2 Kilo, semester I, studying static fluid material for the 2022/2023 academic year. The validation results for the development of constructivism-based physics teaching aids to build Generic Science Skills for high school students on static fluid material show an average score of 0.75 with a percentage of 22.43% for very good criteria, an average score of 2.75 with a percentage of 78.57% for good criteria. At the same time, the categories are sufficient, lacking, and very unfavorable, each with an average score of 0 with a percentage of 0.00%. It indicates that the validator assesses the aspect of the teaching aids as good. The development of constructivism-based physics teaching aids on static fluid material can build students' Generic Science Skills, shown in the N-Gain percentage of 70.65% with the high category. Students also responded positively to the development of constructivism-based teaching aids in building Generic Science Skills. It was indicated by the average student responding strongly agree 37.60% and giving a response of agree 44.00% while responding disagree 9.80%, strongly disagree 8.60%.
The effectiveness of template and example paper implementation in developing student writing skills in science courses Muhammad Syazali; Muhammad Erfan; Baiq Niswatul Khair; Aisa Nikmah Rahmatih; Hasnawati Hasnawati
Jurnal Pijar Mipa Vol. 18 No. 3 (2023): May 2023
Publisher : Department of Mathematics and Science Education, Faculty of Teacher Training and Education, University of Mataram. Jurnal Pijar MIPA colaborates with Perkumpulan Pendidik IPA Indonesia Wilayah Nusa Tenggara Barat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jpm.v18i3.4661

Abstract

The use of templates and examples of papers separately is proven to be able to develop students' writing skills. The average degree of mastery that can be achieved is already in the good category. Using various learning facilities can be a solution to improve these achievements into a very good category. This study aims to analyze the effectiveness of implementing templates and sample papers in developing students' writing skills in science courses. The pre-experimental research was conducted on elementary school teacher education study program students. Data on each student's scientific research paper writing skills were collected using the documentation method. This data was then analyzed descriptively. The descriptive analysis includes average and proportion measurements. Based on the results of data analysis, it was found that the average student's skills in writing papers were in a good category. Most students have very good (41.44%) and good (40.54%) categories of writing skills. 13 indicators have reached the very good category, one indicator is in a good category, and two indicators are in the sufficient category. The rests are one indicator still in the less category and four indicators in the less category. The conclusion that can be drawn from this research results is using examples and paper templates as effective learning facilities to improve students' writing skills.
Development of e-module STEAM-Integrated problem based learning for salt hydrolysis topic Lusi Marvita Sari; Andromeda Andromeda
Jurnal Pijar Mipa Vol. 18 No. 3 (2023): May 2023
Publisher : Department of Mathematics and Science Education, Faculty of Teacher Training and Education, University of Mataram. Jurnal Pijar MIPA colaborates with Perkumpulan Pendidik IPA Indonesia Wilayah Nusa Tenggara Barat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jpm.v18i3.4727

Abstract

Teaching materials as a support in the learning process in this technological era can be in the form of e-modules. Using e-modules in the learning process is declared effective, with a marked increase in student learning outcomes. This research aims to produce an integrated STEAM Problem-Based Learning E-Module of Salt Hydrolysis and determine its validity and practicality level. The type of research used is research development or Research and Development (R&D). The development model used is the Plomp model, which consists of 3 stages, namely: (1) Preliminary Research, (2) the Development or Prototyping Phase, and (3) Trial and Assessment (assessment phase). This research is limited to the development stage, namely the validity and practicality test. The research instrument used was a validity and practicality questionnaire. Five validators validated the e-module, while the practicality test was carried out by three chemistry teachers and 12 students in class XII MIPA senior high school SMAN 15 Padang. The results of the validation analysis obtained an average content validity test value of 0.87 with a valid category and an average media validity test value of 0.90 with a valid category. At the same time, the practicality tests of teachers and students obtained 91% and 91%, respectively, in the very practical practicality category. In conclusion, the salt hydrolysis e-module based on STEAM integrated Problem-Based Learning for class XI SMA/MA, which has been developed, is valid and practical.
Development of the uno chemical card game as a learning medium on the periodic system of elements for high school students Yeltika Afria Ningsih; Iswendi Iswendi
Jurnal Pijar Mipa Vol. 18 No. 3 (2023): May 2023
Publisher : Department of Mathematics and Science Education, Faculty of Teacher Training and Education, University of Mataram. Jurnal Pijar MIPA colaborates with Perkumpulan Pendidik IPA Indonesia Wilayah Nusa Tenggara Barat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jpm.v18i3.4757

Abstract

This study aims to develop a chemical uno card game as a learning medium on the periodic system of elements for tenth-grade students and determine its validity and practicality. This type of research is research and development with the Plomp development model, which consists of three stages, namely (1) preliminary research, (2) prototyping stage, and (3) assessment phase. The research subjects were five chemistry lecturers at the Faculty of Mathematics and Natural Sciences, Padang State University, two chemistry teachers, and ten senior high school SMAN 13 Padang students for the 2022/2023 academic year. The research instrument was in the form of one-to-one evaluation interview sheets, media expert validity questionnaires, material expert validity questionnaires, and practicality test questionnaires. Validity data were analyzed using the Aiken'V formula, and practicality data were processed using the percentage formula. The validity value of the media expert was 0.88, and the material expert was 0.85 with the valid category. The results of the practicality analysis by teachers and students are in the very practical category, with respective values ​​of 95.38% and 97%. In conclusion, the uno chemical card game as a learning medium in the periodic system of elements was valid and practical.
Implementation of the self-organized learning environments learning model to enhace learning outcomes and student independence Kusmiyati Kusmiyati
Jurnal Pijar Mipa Vol. 18 No. 3 (2023): May 2023
Publisher : Department of Mathematics and Science Education, Faculty of Teacher Training and Education, University of Mataram. Jurnal Pijar MIPA colaborates with Perkumpulan Pendidik IPA Indonesia Wilayah Nusa Tenggara Barat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jpm.v18i3.4776

Abstract

This study aims to describe student learning outcomes and independence through SOLE (Self Organized Learning Environments) learning. The subjects of this study were 21 Biology Education students who took the Introductory Education course. Data on learning outcomes were collected using tests, while independence using a non-test with a Likert scale. The collected data were analyzed qualitatively into five categories. Cognitive learning outcomes in the good category were 11 (52%), and very good was 10 (48%) students. The results of the analysis of independence with categories fairly good, good, and very good were 2(10%), 8(32%), and 11(52%) students, respectively. The achievement of student independence on the indicators of not depending on others, self-confidence, discipline, responsibility, and self-control varies from fairly good to very good. In contrast, the self-initiative indicators vary in the good and very good categories. The analysis of the relationship between independence and learning outcomes shows that in all categories, independence shows learning outcomes in very good and good categories. Conclusion: (a) Student cognitive learning outcomes in completing lectures vary in very good and good categories. (b) Students' independence in completing lectures varies from fairly good to very good categories but is dominated by very good categories. (c) student independence in each indicator varies from fairly good to very good, except for the initiative indicator, which is in the good and good categories. (d) the level of student independence determines learning outcomes that vary in very good and good categories.

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