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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. 4 (2023): July 2023" : 30 Documents clear
Mapping of student’s critical thinking ability in the material structure and function of plant tissue Adisti Yuliastrin; Dindawini Salsabilla Dinda; Rian Vebrianto; Mery Berlian; Herlinda Herlinda
Jurnal Pijar Mipa Vol. 18 No. 4 (2023): July 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.v18i4.4631

Abstract

In the 21st Century, students' critical thinking abilities are fundamental to facing challenges and increasing societal obstacles, especially students. This study aimed to determine the level of critical thinking abilities in SMP/MTs students. This study's significance is obtaining test results related to SMP/MTs students' critical thinking abilities. This study used a survey method involving 75 SMP/MTs students who were selected randomly. The instrument used a questionnaire containing critical thinking questions distributed online via Google Forms. The data obtained were analyzed using SPSS. Based on the survey results, it is known that the average student's critical thinking abilities are 8.0 with a good category which details can be explained as follows: 1) Providing simple explanations (8.0); 2) Building basic skills (7,9); 3) Drawing a conclusion from the data (7.5); 4) Providing further explanations (8.0); and 5) Developing a follow-up strategy (7.5). The results of this study allow a conclusion that the constructs with the highest average scores are providing simple explanations and providing further explanations with an average score of 8.0. Thus, it is recommended that students improve their critical thinking abilities and that teachers continue to use the instruments they have used.
Analysis of science laboratory facilities at Junior High School Bina Ilmi, Palembang City, Indonesia Muhammad Julian; Astrid Sri Wahyuni Sumah
Jurnal Pijar Mipa Vol. 18 No. 4 (2023): July 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.v18i4.4813

Abstract

One of the facilities in the teaching and learning process that should be considered is the laboratory. The laboratory is an effective learning resource to achieve the expected competencies for students in increasing efficiency and effectiveness; the laboratory must be managed and utilized correctly. Science learning is not just theory; it is necessary to carry out practical activities in the laboratory. Following Permendiknas No 24 of 2007, laboratory facilities and infrastructure are needed to support practicum activities. This study aims to determine the carrying capacity of the science laboratory facilities at SMP IT Bina Ilmi Palembang and determine the obstacles faced in conducting practicums at the science laboratory at SMP IT Bina Ilmi Palembang. This study uses descriptive qualitative research. The results showed that most science laboratory facilities in schools needed to meet the standards of Permendiknas No. 24 of 2007. There were many areas for improvement in the availability of practicum equipment and media that could support practicum implementation activities to increase student learning outcomes. Obstacles that affect practicum activities are the lack of ability to manage school laboratories, lack of understanding of the meaning and function of school laboratories and their implications for the development and improvement of science learning systems, the limited ability of teachers to master subjects, and uneven procurement and distribution of Science Kit teaching aids so that makes it difficult for the teacher activity center to carry out its coaching function for teachers. Ironically, the existence of a school laboratory is considered a burden, so it is rarely used correctly.
Development of higher order thinking skill test instrument in packaged foods topic to enhance critical thinking ability of junior high school students Destriyanti Fikri Fadillah; Dwi Indah Suryani; Annisa Novianti Taufik
Jurnal Pijar Mipa Vol. 18 No. 4 (2023): July 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.v18i4.4967

Abstract

Schools have not fully implemented learning activities designed to improve students' critical thinking skills. The HOTS test instrument can teach students to think critically. This research aims to analyze the level of validation of the HOTS test instrument on the theme of packaged food to foster the critical thinking skills of junior high school students. This study uses the Borg & Gall development model as a research and development (R&D) method. The R&D stages include potential and problem analysis, data collection, product design, validation, and revision. This research results from the HOTS test instrument, which consists of 30 open essay questions. The validation results show that, based on material experts, 82.8% are included in the valid category, 92.3% are included in the very valid category based on evaluation experts, and 87.82% are included in the very valid category based on expert practitioners. The HOTS test instrument on packaged food to foster critical thinking skills of junior high school students is very valid (87.64%) overall.
Characterization and antibacterial activity test of chitosan-silver nanoparticle gel and binahong leaf extract (Anredera cordifolia (Tenore) Steen) against Staphylococcus aureus Indira Dwi Aulia; Sari Edi Cahyaningrum
Jurnal Pijar Mipa Vol. 18 No. 4 (2023): July 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.v18i4.4994

Abstract

Binahong leaf is one of the medical plants that contain alkaloids, saponins, and flavonoids, which directly act as antibiotics. Additionally, chitosan and silver nanoparticles also possess antibacterial properties. This study aims to determine the antibacterial activity of a gel preparation against Staphylococcus aureus bacteria. It was a true experimental study with data collection carried out at the inorganic level. This study's results show that the gel preparation's organoleptic test meets the requirements for skin pH of 4.5-6.5. The spreading test meets the need for good distribution on the skin, which is 5-7cm. The antibacterial activity test showed that the largest diameter of the inhibition zone was observed at concentration F5 (5% binahong leaf extract), which was 13.4 mm.
Inquiry oriented electronic student worksheet using liveworksheet on chemical equilibrium material to train analysis thinking skills Maharani Agustina Arivi; Dian Novita
Jurnal Pijar Mipa Vol. 18 No. 4 (2023): July 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.v18i4.5036

Abstract

This study aimed to describe the feasibility of inquiry-oriented electronic student worksheets using live worksheets on chemical equilibrium material to train the analytical thinking skills of class XI students of Senior High School. The feasibility of the Electronic Student Worksheet is viewed from validity, effectiveness, and practicality. This study uses the Research and Development (R&D) method. A limited trial was conducted in April 2023 for 30 students who had received chemical equilibrium material. The results showed that the validity of the electronic student worksheet was stated to be valid based on the results of the validation of the electronic student worksheet, which received a mode of 4. The practicality of the electronic student worksheet was stated to be practical with a percentage of 93.7%. The electronic student worksheet was declared effective based on the t-test results with a significance level of 5% obtained tcount>ttable of 12.294>2.045, which means Ho was rejected, Ha was accepted, and the N-gain score was 0.7. Based on these results, it can be concluded that electronic student worksheet is appropriate to be used to train analytical thinking skills in chemical equilibrium material.
The effect of kebon kongok waste disposal sites on ground water quality in Suka Makmur Village, West Lombok District Tina Melinda; Taufik Abdullah; Dilla Rahmayanti
Jurnal Pijar Mipa Vol. 18 No. 4 (2023): July 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.v18i4.5048

Abstract

The Kebon Kongok waste disposal sites (WDS), Suka Makmur Village, is the final waste disposal site for Mataram City and West Lombok because Mataram City does not have a WDS. The condition of the WDS has exceeded its capacity. Suka Makmur Village is a village close to the Kebon Kongok WDS. This research was conducted in Suka Makmur Village to know groundwater quality with Smell, Taste, TDS, pH, BOD, COD, Ammonia (NH3N), and Total Coliform. The method used to determine the quality of groundwater is by using the Pollution Index Method. In determining the sampling technique, the purposive sampling technique is used, a determination technique with certain considerations. The results showed that the results of the analysis of raw water samples with the parameters Odor, Taste, Total Dissolved Solid, pH, BOD, COD, Ammonia (NH3N), and Total Coliform. The results obtained from the three sample points that exceeded the Water Quality Standard threshold were only the Total Coliform parameter, sample 1 was 230 mg/l, sample 2 was 91 mg/l, and sample 3 was 230 mg/l based on the Regulation of the Minister of Health of the Republic of Indonesia Number 32 2017 concerning Environmental Health Quality Standards and Water Health Requirements for Sanitation Hygiene, Swimming Pools, Solus Per Aqua, and Public Baths. Based on the results of data analysis using the Pollution Index Method (IP), sample one was 3.14, sample two was 1.68, and sample three was 3.13. These results indicate that the condition of the water is included in the Light Polluted category based on the Decree of the State Minister for the Environment Number 115 of 2003 concerning Water Quality Status, the Pollution Index value with an IP score of 1.1 - 5.0 is intended for class I water.
Development of guided inquiry-oriented e-worksheets to improve students' science process skills in acid-base material Dini Catur Anisah; Harun Nasrudin
Jurnal Pijar Mipa Vol. 18 No. 4 (2023): July 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.v18i4.5073

Abstract

This study aims to describe the feasibility of guided inquiry-oriented E-worksheets to improve students' science process skills on acid-base material. The research method is Research and Development (R&D), using the 4D development model, which is limited to the development stage and limited trials on 38 eleventh grades at Al-Islam Krian senior high school. The results showed the feasibility of E-worksheets as follows : (1) The validity of E-worksheets based on the criteria of content, presentation, language, and graphics, obtained the mode in E-worksheets 1 and E-worksheets 2, respectively: content criteria 5 and 5; presentation criteria 4.5 and 4.5; language criteria 4 and 4; graphic criteria 5 and 5 with valid and very valid categories, so that the developed E-worksheets are feasible based on the validity criteria. (2) The practicality of the E-worksheets is reviewed from the responses and activities of students. Learner responses based on content, presentation, language, and graphic criteria obtained a percentage of 96.42%; 96.70%; 99.12%; and 100% with a very practical category. Relevant learner activities at meeting 1 and meeting 2 received a percentage of 95.02% and 96.56% in the very practical category. (3) E-worksheets' effectiveness is based on improving science process skills. A normality test showed a significant score on the pretest and posttest of 0.004 and 0.000, respectively, so the significance < 0.05 showed that its data was not distributed normally. Furthermore, pretest and posttest data are analyzed using the Wilcoxon signed rank test, with a significance score of 0.000 < 0.05, showing a significant difference in pretest and posttest results. Data pretest and posttest then also analyze using N-gain with a score from 0.70 to 1.00 with a high category, so students' science process skills are said to increase. E-worksheets effectively improve science process skills.
Development of student worksheets green chemistry oriented to train creative thinking skills on reaction rate topic Amelia Wulandari; Mitarlis Mitarlis
Jurnal Pijar Mipa Vol. 18 No. 4 (2023): July 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.v18i4.5100

Abstract

This study aims to produce student worksheets with green chemistry oriented to train creative thinking skills in matter with reaction rate proper. The green chemistry principles studied in this research are limited to 1, 5, and 12. The research development method uses a 4-D model (define, design, develop, and disseminate) and is limited to the development stage. Limited trials were conducted on 35 students in class XI IPA 1 senior high school. The development of student worksheets is feasible if it fulfills three aspects, including aspects of validity, practicality, and effectiveness. It is declared valid if it gets a minimum mode value of 3 from the range of values ​​1-5 and is declared practical and effective if the proportion results are ≥ 61%. The results of the development of student worksheets mean that the feasibility of student worksheets in terms of theoretical validity consists of several things, namely content criteria that obtain a mode value of 5, linguistic criteria obtain a mode value of 5, presentation features obtain a mode value of 5, graphical criteria obtain a mode value 4, green chemistry scoring gets a mode value of 5, and criteria for creative thinking skills gets a mode value of 5. The practicality of student worksheets is seen from the student response questionnaire, which is supported by observations of student activities and the implementation of learning, each of which obtains very practical results with an average proportion of 94.64%, 94.5%, and 98.21%. The aspect of effectiveness is viewed from the results of the creative thinking ability test, which obtained 0.85, which is in the high category. Based on the results of validity, practicality, and effectiveness, it can be interpreted that the student worksheets developed are declared feasible for use in the teaching and learning process.
Bacteriological analysis of air quality in the community settlement around waste disposal sites Kebon Kongok, West Lombok Nurhidayah Nurhidayah; Mulhidin Mulhidin; Nurhidayatullah Nurhidayatullah
Jurnal Pijar Mipa Vol. 18 No. 4 (2023): July 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.v18i4.5104

Abstract

This study aimed to determine the air quality in the community settlements around the Kebon Kongok Dusun Landfill, Suka Makmur Village, West Lombok Regency. The type of research used was an experiment using NA media as a growth medium for bacteria at 3 points passed by garbage trucks in community settlements and 1 point not passed by garbage trucks in the Kebon Kongok landfill area, Suka Makmur Village. Air quality in residential communities around the waste disposal sites (WDS) Suka Makmur Village does not meet the requirements based on the Minister of Health Regulation number 1077 of 2011 concerning the requirements for biological contaminants, namely the germ count of less than 700 CFU/m3. The air quality index is lower than the other points, namely at Point I of 3,779 CFU/m3, because Point I is a sampling location far from garbage trucks going to the TPA. The highest results in this study were obtained at Point IV, which was 6,933 CFU/m3; this was estimated because the sampling location was in a community settlement which was less than 50 meters from the Kebon Kongok TPA gate with active trucks and heavy equipment activity in the TPA. Microscopic observation obtained gram-positive bacteria at all points.
Development of handouts on acid-base material with the sorogan learning method Siska Widiana Putri; Rinaningsih Rinaningsih
Jurnal Pijar Mipa Vol. 18 No. 4 (2023): July 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.v18i4.5151

Abstract

The Sorogan learning method is individual learning with the activities of students giving their learning outcomes (strong) to the teacher. This study aims to determine the feasibility of handouts in improving students' mastery of concepts in acid-base material using the developed Sorogan learning method in terms of validity, practicality, and effectiveness. The research for developing this handout refers to the Research & Development (R&D) development method, which is limited to the limited trial stage. Handout validity consists of content and construct validity. Content validity gets mode 5 with very valid criteria. Construct validity includes graphical, presentation, and linguistic criteria. Graphic criteria get mode 5 with very valid criteria, presentation criteria get mode 4 with valid criteria, and linguistic criteria get mode 4 with valid criteria. The practicality of the handout is seen from the results of observing the activities of the students by obtaining a percentage of 95.71% and the student response questionnaire in terms of the criteria for content, graphics, presentation, and language, getting a percentage respectively 98.33%, 96.67%, 97, 77%, and 100% with very practical criteria. The effectiveness of the handout is seen from the increase in pretest to posttest scores for each student using the N-Gain Score formula, and a value of <g> 0.8 is obtained, or it can be said to increase by 80% with high criteria. Classical completeness gets a percentage of 100% with very effective criteria. It shows that using handouts with the Sorogan learning method in acid-base chemistry learning can improve students' mastery of concepts and learning outcomes. The handout on acid-base material using the Sorogan learning method was declared feasible because it met the validity, practicality, and effectiveness criteria.

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