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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 30 Documents
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Search results for , issue "Vol. 18 No. 5 (2023): September 2023" : 30 Documents clear
Development of critical thinking variable instruments in student worksheet media Radeswandri Radeswandri; Dindawini Salsabilla; Rian Vebrianto; Mery Berlian; Susilawati Susilawati
Jurnal Pijar Mipa Vol. 18 No. 5 (2023): September 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.v18i5.4617

Abstract

In the 21st Century, students' critical thinking abilities are needed to utilize their knowledge in problem-solving. Also, these skills are very important for students in making decisions when faced with various choices. This study aimed to see the effectiveness of students' critical thinking variables in the learning process. This study used a Research and Development (RND) method with an instrument in the form of a questionnaire consisting of 2 constructs. This study was carried out by involving seven teachers from several schools. Data collection was carried out by filling out an online questionnaire. Data were then analyzed with the help of the SPSS program. The results of this study prove that the preparation and development of the evaluation instrument of critical thinking variables in student worksheet media for students in this study were carried out by testing two research constructs, namely accuracy and effectiveness variables. Furthermore, the results of testing the validity and reliability indicate that the data validity of the evaluation instrument meets the valid criteria. Also, the results of this study indicate that the instrument developed meets the requirements for use in the development of student worksheet media.
Design of an optical rotation value measurement tool using an arduino device Muhammad Muhammad; Beny Ragadita; Soni Prayogi; Saminan Saminan
Jurnal Pijar Mipa Vol. 18 No. 5 (2023): September 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.v18i5.4811

Abstract

Malus' law asserts that the square of the cosine of the angle formed between two polarizers is directly proportional to the light intensity after passing through them. In this study, we demonstrate this law using a straightforward configuration. Our method of measuring the polarizer's rotational angle while keeping the other polarizer stationary is innovative. It involves manually attaching a multi-turn potentiometer to one of the polarizers. The Arduino board is connected to the potentiometer and light sensor used to detect the intensity of transmitted light, allowing for the measurement of light intensity as a function of rotational angle. Additionally, we think that the configuration as it is now can be helpful in physics laboratory classes. It can also be demonstrated by using it during lectures.
Acute toxicity test of anthelmintic herbal on Artemia salina larvae I Ketut Devananda Wicaksana; Kamelia Roiyan; Dinatul Aini; Syauzatta Amani; Widya Wulandari; Muhammad Abdurrahman Fardiaz; Raisya Hasina
Jurnal Pijar Mipa Vol. 18 No. 5 (2023): September 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.v18i5.5094

Abstract

Jamu X is a traditional medicine that is believed to provide anti-inflammatory effects, contains natural ingredients such as Curcuma xanthorrhiza Robx and Curcuma aeruginaosa Robx, has long been used to treat worm infections in children, but it has not passed preclinical tests. The use of traditional medicine in Indonesia has also increased to 44.3%, 55.3% in liquid form, and the rest in powder form. Therefore, this study aimed to determine the potential acute toxicity of Jamu X to Artemia salina larvae presented as its    Furthermore, to determine the damaged parts of the larval organs using the Brine Shrimp Lethality Test (BSLT) method. This experimental study used 10000, 1000, 100, 10, 1, and 0.1 ppm, and each concentration contained 10 Artemia salina larvae. Then, we obtained the upper limit of 10,000 and the lower limit of 1000. In the following test, the larvae were grouped into six groups consisting of 10 Artemia salina larvae, and each group was given Jamu "X" solution with a series of concentrations 10000, 7820, 5640, .168, 1780, and 1000 ppm. Mortality data of Artemia salina larvae were analyzed by probit analysis to determine the value of   . The results of this study showed the   value was 1548.81 µg/mL, and damage was found in the thorax, antennae, antennule, stigma, and abdomen. It shows that Jamu X does not have the potential for acute toxicity or is non-toxic, which is indicated by the value of   > 1000 ppm.
The effect of cooperative learning model TGT-type assisted by crossword puzzle media on biology concept mastering Dimas Adi Pratama; Kusmiyati; Tri Ayu Lestari; Muhlis
Jurnal Pijar Mipa Vol. 18 No. 5 (2023): September 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.v18i5.5190

Abstract

This study aims to determine the effect of the cooperative learning model of the Teams Games Tournament (TGT) type assisted by crossword puzzle media on the mastery of biological concepts in class X students at SMAN 3 Kota Bima. This study used a quasi-experimental research method with a nonequivalent control group design (pretest and posttest). The population in this study were students of class X, consisting of class X 1 to X 4. The sampling technique used purposive sampling. The samples used were students of class X 3 as the control class and class X 4 as the experimental class. Data collection techniques using test instruments in the form of multiple-choice questions. The analysis technique used is the t-test with a significance level of 5% with the help of SPSS 25 for Windows. The t-test results show that the value of (2.347 > 2.010). Based on these results, it can be interpreted that the cooperative learning model of the TGT type assisted by crossword media affects the mastery of biology concepts in class X students at SMAN 3 Kota Bima.
Relationship between metacognitive skills and critical thinking in elementary science lectures through guided inquiry model Anindita SHM Kusuma; Ahmad Busyairi
Jurnal Pijar Mipa Vol. 18 No. 5 (2023): September 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.v18i5.5225

Abstract

Learning science helps one develop understanding and thinking habits and allows students to master many life skills. Science learning emphasizes empowering high-level thinking skills such as metacognitive and critical thinking. This study aimed to determine the relationship between metacognitive skills and critical thinking using a guided inquiry strategy in elementary science education lectures. The study results show a relationship between metacognitive skills and students' critical thinking in Elementary Science Education lectures in learning using the guided inquiry strategy. The value of the correlation coefficient (r) of students' metacognitive skills with critical thinking in Elementary Science Education lectures is 0.859 (very high). The direction of the relationship between metacognitive skills and critical thinking is a positive relationship. The coefficient of determination (r2) is 0.737, so it can be explained that the variability of students' critical thinking values is determined by 73.3% of metacognitive skills. The regression significance value proves that the regression line equation can be used for prediction. The equation of the regression line for the relationship between metacognitive skills and students' critical thinking in Elementary Science Education lectures using the guided inquiry strategy is Y ̂=0.960+0.863X.
Implementation of circuit learning strategies to improve science learning outcomes Mahyaeny Mahyaeny
Jurnal Pijar Mipa Vol. 18 No. 5 (2023): September 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.v18i5.5241

Abstract

By implementing the Circuit Learning strategy, this research aims to improve student learning outcomes in class VII science subjects at SMPN 4 Mataram in 2022-2023. The type of research used was classroom action research, carried out in two cycles with 32 students. Learning outcome data is collected through evaluation tests, while student activity data is collected through observation sheets. The research results showed that in cycle 1 to cycle 2, the average score was 75 with classical completeness of 72% to an average score of 80 with classical completeness of 87.5%, increasing the average score of results and learning and classical completeness. Meanwhile, the observations of the implementation of the first learning cycle showed that students' learning activities in the learning process were included in the quite active category because the students achieved a score of 3 following the lessons. In cycle II, the score obtained was 4.6, which was included in the active category. It shows an increase in the student activity category from cycle I to cycle II, with an increase of 1.6. Teacher activities in teaching are included in the relatively good category. It is proven from the observations made by obtaining a score in cycle I, namely 9. In cycle II, the score obtained was 14, with an increase of 5. It shows an increase from cycle I, where teacher activities were included in the relatively good to excellent category. This research concludes that the Circuit Learning Strategy can improve student learning outcomes in Class VII Science Subjects at SMPN 4 Mataram in 2022-2023.
Active compounds of Citrus hystrix DC in special cuisine of the Samawa Tribe, West Nusa Tenggara Aliefman Hakim; Saprizal Hadisaputra; L. Rudyat Telly Savalas; Jono Irawan
Jurnal Pijar Mipa Vol. 18 No. 5 (2023): September 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.v18i5.5418

Abstract

The people of Sumbawa are famous for their various typical Sumbawa dishes. Typical dishes popular among the people and widely known in NTB are sepat and salty chili dishes. This dish is inseparable from flavoring Monte Sumbawa. Additional types of food, such as anointing, are also indispensable for Monte Sumbawa. Monte Sumbawa is a type of kaffir lime Citrus hystrix DC that grows in the Sumbawa area. Consumptionmonte sumbawa is very high in all areas of Sumbawa. This research aims to meet the community's needs and not depend on the fruiting season—innovation in essential oil distillation and packaging monte sumbawa in packaged products. The research method uses laboratory experiments. The content of active compounds was obtained using the GC-MS method. Based on the results of the GC-MS test, the active compound contains the major compound, linalool, with a weight percentage of 57.8%. Oil contains minor compounds such as 1-Octadecene (CAS).alpha.-Octadecene, 3-Cyclohexen-1-ol, 4-methyl-1-(1-methylethyl)- (4)-Ter , TRANS( .BETA.)-CARYOPHYLLENE, and GERMACRENE-D. Active compounds play an active role in supporting the health of the human body and as a detox against various cancer-causing free radicals. The product is packaged in a dropper bottle which is easy to use and can be stored for a long time. Society can use Monte anytime and no longer depend on the fruiting season.
Problem-based learning integrated with flipped classrooms assisted by google sites to improve student mathematics learning achievement Adam Arya Nugraha; Heni Purwati; Lilik Ariyanto; Sumarti
Jurnal Pijar Mipa Vol. 18 No. 5 (2023): September 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.v18i5.5428

Abstract

Mathematics is a subject taught at every level of education and has a vital role in everyday life. However, in reality, student mathematics learning achievement tends to be low. One of the reasons is the monotonous learning model or strategy and uninteresting learning media. The learning process is only one-way, making students imitate and record how to answer the questions given by the teacher without understanding the concept correctly. In addition, the learning media used is monotonous and tends to be traditional. Namely, only the whiteboard and several times using an LCD projector, making students bored and passive. So, innovative learning strategies and media are needed to overcome these problems. This study aims to determine the improvement of student mathematics learning achievement in statistics material in grade 10 through implementing Problem-based Learning integrated with Flipped Classroom assisted by Google Sites. The research method used is Classroom Action Research with the Kemmis and McTaggart model, which consists of four stages: Planning, Action, Observation, and Reflection. The results showed increased student mathematics learning achievement in statistics material in grade 10 through implementing Problem-based Learning integrated with Flipped Classroom, assisted by Google Sites. The percentage of classical learning completeness in each cycle is Pre-Cycle 56% with an average of 69.3, Cycle I 72% with an average of 75.7, and Cycle II 89% with an average of 84.7. So, Problem-based Learning integrated with Flipped Classroom, assisted by Google Sites, successfully improves student learning achievement and is recommended to be implemented in the classroom.
Potency of fermented jicama extract cultured with Lactobacillus plantarum B1765 for producing short chain fatty acid Avissa Auryn Wijayanti; Prima Retno Wikandari
Jurnal Pijar Mipa Vol. 18 No. 5 (2023): September 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.v18i5.5457

Abstract

Short-chain fatty acid (SCFA) is the end product of inulin metabolism, which has various health benefits, such as affecting lipid metabolism and as an antidiabetic agent. This research studied the effect of the fermentation time of jicama extract with Lactobacillus plantarumB1765 as a starter culture on producing SCFA. Fermentation was conducted for 2, 12, 24, and 36 hours at a temperature of 37°C with 5% (v/v) of the starter culture, then determined the growth of LAB, pH, Total Titratable Acid (TTA), fructose, and Short Chain Fatty Acid content. The total LAB count was measured using the Total Plate Count; fructose was measured using the Nelson-Somogyi method, while SCFA was measured using HPLC with eluents H3PO4 0.1% and acetonitrile 25%. The length of fermentation affected the increase in total Lactic Acid Bacteria (LAB), Total titratable acidity (TTA), fructose, SCFA, and the decrease in pH. The results showed that the optimal growth of Total LAB at 24 hours of fermentation correlated with fructose content, but increasing TTA and SCFA until 36 hours of fermentation and pH decreased to 3,92 at the end of fermentation and decreasing pH due to lactic acid and SCFA producing. SCFA was identified as consisting of acetic acid (1.31±0.006 mg/mL), propionic acid (1.58±0.0055mg/mL), and butyric acid (1.05±0.0038mg/mL), with the highest SCFA was propionic acid. Therefore, fermented jicama extract with Lactobacillus plantarum B1765 has the potential to produce SCFA, which could be used for various health benefits.
Development of interactive multimedia based on educational games of plant parts and their functions to improve student learning outcomes None Nur Fadila; Karimatus Saidah; Dhian Dwi Nur Wendha
Jurnal Pijar Mipa Vol. 18 No. 5 (2023): September 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.v18i5.5472

Abstract

Natural Science (IPA) is an activity to study nature systematically through actual activities and trains students to think critically and objectively to achieve learning objectives. Using learning media in the learning process can support success in the learning process. This study aims to determine interactive multimedia development's validity, practicality, and effectiveness based on the educational game "Plant World" material about plant parts and their functions. This research uses the R&D (Research and Development) method with the ADDIE model, which consists of 5 stages, namely 1) analysis, 2) design, 3) development, 4) implementation, and 5) evaluation. Data collection techniques using expert validation questionnaires, teacher and student responses, and pre-test and post-test evaluations were then analyzed using qualitative and quantitative descriptive. The results showed that the development of interactive multimedia based on the educational game "Plant World" with the validation of media and material experts obtained an average percentage of 86% very valid criteria, teacher responses received a percentage of 89% very practical criteria, and student responses obtained a percentage of 90% very good criteria. The effectiveness was obtained from the average pre-test result of 57.7 and the post-test of 81.7. It was found that the post-test value was higher than the pre-test value, and the specified KKTP was 75. Strengthened by the Paired Sample-test results obtained 0.001 <0.05, there is a significant difference between pre-test and post-test evaluation.

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