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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 1,179 Documents
 108   109   110   111   112 
The Effectiveness of Differentiated Learning using the TaRL (Teaching at the Right Level) Approach for Improving Learning Interest and Learning Outcome Afandi, Rahmad Alvian; Ningtyas, Nindita Sabila; Susiyawati, Enny; Pratiwi, Purwanita
Jurnal Pijar Mipa Vol. 19 No. 4 (2024): July 2024
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.v19i4.6860

Abstract

This research was motivated by the low interest in learning and the low learning outcomes of students. This is because the learning that is carried out does not follow the students' wishes and ability level, so students are less active and have a low interest in learning science. Learning interests will affect the learning outcomes of students. This class action research aims to improve learning outcomes and students' interest in learning by using differentiated learning using the TaRL approach with the help of the inquiry learning model. TaRL learning is learning by grouping students according to their ability level. This study was conducted at SMPN 49 Surabaya in class 8B. The research data collection method used a questionnaire about students' interest in learning, an observation sheet for the implementation of learning, and a written test to determine students' learning outcomes. The design used in this study was the Tagart and Kemmis cycle model, and the data obtained was analyzed using classical learning completeness. The results showed that differentiated learning using the TaRL approach improved student learning outcomes with a percentage increase of 37% and an increase in the average score of 17.10. In addition, the results showed that students' interest in learning experienced a rise in categories from the initial condition, which had a poor category, to a good category at the end of the cycle. Based on the study's results, it can be concluded that applying differentiated learning using the TaRL approach can improve learning outcomes and student interest in the learning cycle.
Liver Histology of Male Rat (Rattus norvegicus) Feed L-Carnitine Supplement Padmiswari, Anak Agung Istri Mas; Indrayoni, Putu; Wulansari, Nadya Treesna
Jurnal Pijar Mipa Vol. 19 No. 4 (2024): July 2024
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.v19i4.6900

Abstract

Obesity is a condition where the body is overweight due to fat accumulation, each exceeding 20-25% of body weight for men and women. L-carnitine is a nutrient that plays a role in transporting fat to the mitochondria to be burned and converted into energy for the body. Sufficient L-carnitine allows the body to burn fat at optimal levels. This research aims to determine the side effects of fed L-carnitine supplements against liver histology. This study used a completely randomized design (CRD) with four groups comprising six albino rats. The treatments were fed orally by distilled water 1 ml/day (Control), P1 fed by L-carnitine supplement dose 100 mg/kg body weight orally 1ml/day, P2 fed by L-carnitine supplement dose 150 mg/kg body weight orally 1ml/day, P3 fed by L-carnitine supplement dose 200 mg/kg body weight orally 1ml/day. Treatments were given to albino rats every day for 90 days. Variables observed measured were lipid degeneration, central vein dilation, and pyknotic nuclei. Data were analyzed with the statistical program (SPSS 22.0 for Windows) with One Way ANOVA. The results showed that feeding L-carnitine supplements in high doses for long periods can damage the liver cells of male rats. The microscopic liver damage statistical analysis showed significant differences (P<0.05) between the control and treatment groups.
Drivers and Barriers of Science Teacher Development Program on STEM Learning Using Arduino Sarah, Lia Laela; Nahadi, Nahadi; Sriyati, Siti
Jurnal Pijar Mipa Vol. 19 No. 4 (2024): July 2024
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.v19i4.6905

Abstract

The science teacher development program on STEM Learning using Arduino was conducted to enhance science teacher competencies in designing and implementing a 21st-century skills-based teaching approach. This study implemented research evaluation with Context, Input, Process, and Product (CIPP) to determine the drivers that supported and enhanced the program's effectiveness and address the barriers that obstruct teachers' competencies. The methodology employed in this study is both qualitative and quantitative methods. Qualitative methods gather data through observations, interviews, and document analysis. In addition, quantitative methods involve calculating the percentage of participants who complete the training program. Interviews and document studies in context evaluation help determine if program objectives are relevant to teachers' needs and aligned with the curriculum. Observation, interview, and document study were employed to evaluate input, process, and product and complement with quantitative data. The result shows that the science teacher development program is highly relevant today in enhancing teachers' competencies to design 21st-century skills-based teaching. However, some improvements are still needed to support the drivers and eliminate the barriers to make the program more effective. Some drivers, such as participants' motivation, well-organized content, competent facilitators, and sufficient resources, are assets to continue the program. However, the revision of the indicator objectives program, the selection process of participants, the time to conduct the workshop session, guidance, and content representation are essential to note.
Enhancing Critical Thinking Skills in Junior High School Students through the RADEC Learning Model on Vibration Material Fatikhin, Achmad Choirul; Budiyanto, Mohammad; Qosyim, Ahmad
Jurnal Pijar Mipa Vol. 19 No. 4 (2024): July 2024
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.v19i4.6908

Abstract

In the rapidly evolving contemporary era, countries globally, including Indonesia, are compelled to adapt, with the Partnership for 21st Century Skills (P21) highlighting the crucial role of Critical Thinking, Creativity, Collaboration, and Communication (the 4Cs) for student success in the 21st century, yet traditional teacher-led learning often overlooks critical thinking skill development, contributing to low proficiency levels evident in assessments like the Programme for International Student Assessment (PISA). This study aims to describe the implementation of the Read, Answer, Discuss, Explain, and Create (RADEC) model on critical thinking skills in vibrations. The research design employed is descriptive through a one-group pretest-posttest design. The subjects of this study were 34 students in class VIII-A at SMP Negeri 54 Surabaya during the even semester of the academic year 2023/2024. Data collection techniques involved observation, tests, and questionnaires. Research instruments included learning implementation observation sheets, critical thinking skills tests, and student response questionnaires. The test results were analyzed using N-Gain and paired t-tests. The study's findings revealed that implementing the RADEC learning model on vibrations met the criteria very well, with a mode fully implemented. The student's critical thinking skills improved by an N-Gain analysis result of 0.38 and a paired t-test result of 0.000. The students also highly accepted the learning process using the RADEC model in the topic of vibrations, with 86% of statements strongly agreeing. Based on the description above, implementing the RADEC model can enhance students' critical thinking skills regarding vibrations.
Fostering Scientific Literacy using RADEC Learning Model in Junior High School Tillah, Nurmazia Firahma; Subekti, Hasan
Jurnal Pijar Mipa Vol. 19 No. 4 (2024): July 2024
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.v19i4.6911

Abstract

Scientific literacy is the ability of individuals to engage with science-related issues and scientific ideas as reflective citizens. However, many students struggle with low scientific literacy skills, which hampers their ability to understand and engage with scientific concepts effectively. This study aims to describe the implementation of the Read, Answer, Discuss, Explain, and Create (RADEC) learning model on the scientific literacy of junior high school students. This type of research is experimental design. The research design used is descriptive with a one-group pretest-posttest design. The subjects of this study were 34 students of class VII-G at SMP Negeri 54 Surabaya during the even semester of the academic year 2023/2024. Data collection techniques involved observation, tests, and questionnaires. Research instruments included learning implementation observation sheets and scientific literacy tests. Test results were analyzed using N-Gain (Normalized Gain) and paired sample t-test. The study's findings revealed that the implementation of the RADEC learning model was executed very well, as evidenced by an average implementation score of 98.6%, which was categorized as very good. Second, students' scientific literacy skills showed improvement after the RADEC learning model was implemented, as seen from the N-gain analysis, with a score of 0.60, categorized as moderate. The paired sample t-test analysis indicated a significant difference in improving students' scientific literacy skills before and after the learning process with the RADEC learning model.
Effect of White Ginger Rhizome Extract (Zingiber officinale var. amarum) on Pregnancy in Mice (Mus musculus L.) Early Post-implantation Stage Harlis, Wa Ode; Salwinda, Salwinda; Malik, Nurhayu; Resman, Resman
Jurnal Pijar Mipa Vol. 19 No. 4 (2024): July 2024
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.v19i4.6932

Abstract

White ginger (Zingiber officinale var. Amarum) contains compounds in the antifertility group, namely flavonoids, terpenoids, and essential oils (gingerol and shogaol). Flavonoids can interfere with zygote division and implantation, while terpenoids and essential oils disrupt sperm transport and cause sperm to clot in male animals. This study aims to determine the effect of white ginger (Zingiber officinale var. Amarum) rhizome extract on the mouse (Mus musculus L.) early post-implantation stage. This research type is experimental and structured using a Completely Randomized Design (CRD) pattern. A total of 16 female mice weighing 20-30 g aged 2-3 months were divided into four treatments, namely K1 (control), K2 (0.7 mg/g BW), K3 (1.4 mg/g BW), and K4 (2.8 mg/g BW) white ginger rhizome extract. The extract is given orally at 0.5 mL/head/day on the 4th to 8th day of pregnancy. The mother's body weight is weighed every three days. On the 18th day of pregnancy, mice were sacrificed using chloroform and dissected to observe early post-implantation pregnancy parameters. Data were analyzed using Analysis of Variance (ANOVA) and Duncan's follow-up test with a confidence level of 95%.   The research showed that white ginger rhizome extract significantly reduced the percentage of implantation (IM) and the percentage of live fetuses (FH), causing fetal growth to be hampered. The rate of implantation (IM) is K1 (1.8%), K2 (0.52%), K3 (0.49%). The percentage of live fetuses (FH) was K1 (1.06%), K2 (0.48%), and K3 (0.30%), while no fetus was found in K4. K3 treatment (1.4mg/g) causes fetal growth to be hampered. White ginger rhizome extract, on average, increases post-implantation mortality (KPI) and percentage of embryo resorption (ER) and reduces fetal weight. Based on the results of this study, it is concluded that white ginger extract has antifertility properties in female animals because it causes pregnancy disorders, so it is hoped that the use of white ginger in early pregnancy will be reduced.
Formulation and Physical Stability Aromatherapy Medicated Oil of Red Ginger (Zingiber officinale var rubrum) Pramana, I Kadek Bagus Ari; Dira, Made Asmarani; Damayanti, Ida Ayu Manik; Antari, Ni Wayan Sukma
Jurnal Pijar Mipa Vol. 19 No. 4 (2024): July 2024
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.v19i4.6934

Abstract

Aromatherapy products for health relax the body, refresh the mind, and act as a placebo in treating diseases. The more modern aromatherapy medicated oil innovation has high competitiveness in its distinctive aroma and packaging without reducing pharmacological effectiveness. One source of essential oil is red ginger (Zingiber officinale var rubrum), which has pharmacological effects such as antioxidant, anti-inflammatory, analgesic, and anti-carcinogenic. This research aims to prepare, formulate, perform a physical evaluation, and conduct hedonic testing of red ginger aromatherapy medicated oil. This research is experimental research with a posttest group design research design. The physical evaluation results, including organoleptic tests on color, showed that preparations F0 to F3 were precise, yellow +, yellow ++, and yellow +++, respectively. The aroma shows preparations F0 to F3, respectively, the smell of menthol to the typical aroma of red ginger (strong), and the texture F0 to F3 shows a liquid texture. The homogeneity test showed that preparations F0 to F3 were homogeneous. The pH test showed that the pH value of the preparation ranged between pH 5.5 and 6.2 for preparations F0 to F3. This study concluded that the red ginger aromatherapy medicated oil formulation with a concentration of 2%, 4%, and 6% has good physical quality.
Development of E-Worksheet Inquiry-Flipped Classroom on Chemical Equilibrium Material To Improve Students' Analytical Thinking Skills Maulidiya, Lailatul; Novita, Dian
Jurnal Pijar Mipa Vol. 19 No. 4 (2024): July 2024
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.v19i4.6939

Abstract

One of the skills that students must have in the 21st century is analytical thinking skills. Learning media that can support this is needed to facilitate learning and practice analytical thinking skills. One learning media that can be used is an electronic student activity sheet (e-worksheet). This research aims to produce a product in the form of an e-worksheet suitable for use to improve students' analytical thinking skills on chemical equilibrium material. The feasibility of the e-worksheet is reviewed on its validity, effectiveness, and practicality. The method used is the research and development of 4D models consisting of definition, design, development, and deployment. This research was limited to the development stage by conducting a limited trial on students in grades XI-8 of SMAN 7 Surabaya who had studied chemical equilibrium material. The data collection technique of this research uses questionnaire, observation, and test methods. The research instruments used in this study include study sheets, validation sheets, student response questionnaire sheets, observation sheets, and test sheets. This study was analyzed using the N-gain test and the Wilcoxon test. The results of the validation of the e-worksheet from the aspects of content validity and construct validity obtained a mode of 4 so that it can be declared very valid for use. The results of the student response questionnaire reached an average of 98% positive responses in the very practical category. The results of the analysis of pretest and post-test data were obtained to improve analytical thinking skills, which was shown by 80% of students receiving an N-gain score of ≥ 0.7 with a high category and based on the Wilcoxon test, a P-Value value of 0.000 (< 0.05) was obtained which stated that there was a significant difference between the pretest and posttest scores Learners. From the results of the N-Gain analysis and the Wilcoxon Test, the e-worksheet was declared effective. It was concluded that the flipped classroom inquiry e-worksheet on chemical equilibrium material is suitable for training students' analytical thinking skills.
Analysis of Planning to Enhance Creativity Using Appropriate Media and Learning Models for High School Students Wulandari, Puja Tri; Sumah, Astrid Sri Wahyuni
Jurnal Pijar Mipa Vol. 19 No. 4 (2024): July 2024
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.v19i4.7010

Abstract

Improving the quality of education is sought in the teaching and learning process. Learning is a process that impacts teachers and students in teaching and learning activities by increasing interest in material that is considered problematic. Media and learning models that can foster students' sense of creativity play an essential role in overcoming obstacles to understanding subject matter that students consider difficult. So, this research aims to discover the types of media and learning models that are supposed to increase the creativity of Class X students at SMA PGRI 1 Palembang. The method used is a method with a descriptive research design and data collection using questionnaires, interviews, and observations during learning. The results show that students need learning media that is often related to their daily lives, namely social media. The social media that is most owned by students and is considered to be able to act as additional media in learning is Instagram. Students chose this social media platform because it can foster students' sense of creativity in creating work that helps them understand complicated subject matter. These students' opinions support selecting the PjBL model as the learning model biology students and teachers need. This is because combining media and learning models suitable for use in the classroom provides opportunities to increase students' creativity in finding ways to understand the subject matter independently.
Development of E-Worksheet Oriented Guided Inquiry using Liveworksheet on Electrolyte and Non-Electrolyte Solution Materials Agustin, Ayu Vina; Sukarmin, Sukarmin
Jurnal Pijar Mipa Vol. 19 No. 4 (2024): July 2024
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.v19i4.7023

Abstract

This research was conducted against the background of the facts in the field that the teaching materials used in learning chemistry use printed LKS / textbooks so that the chemistry learning felt by students is ordinary; the teaching model used is still teacher-centered which causes less active participation of students in learning. It causes the lack of development of critical thinking skills due to the lack of training for students to develop thinking skills. This study aimed to produce guided inquiry-oriented e-worksheets that are feasible as a learning media using live worksheets on electrolyte and non-electrolyte solution material that were reviewed through validity and practicality testing. This research uses the Research and Development (R&D) method based on the Borg and Gall method modified by Sukmadinata until the product trial stage. The product trial was limited to 28 students in class XI at Ta'miriyah Surabaya High School. The novelty of this research is the development of an e-worksheet, which can improve learning outcomes and train critical thinking skills; all 6 indicators of critical thinking skills, according to Facione, with the help of a live worksheet, so it is interactive. This study involved validators, namely 1 person from a chemistry teacher and 2 chemistry lecturer experts, respondents, namely 28 students, and 3 observers. E-worksheet validation results get modes 4 and 5 to be included in the valid and very valid categories. The practical results of the learner response questionnaire get a percentage between 92.86 - 100%, so it is said to be very practical. This is also supported by the learner activity observation sheet, which the observer observes. The research results show that a guided inquiry-oriented e-worksheet using live worksheets can train students' critical thinking skills on electrolyte and non-electrolyte solution materials.

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