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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
 68   69   70   71   72 
Biological quality of drilled well water around the shrimp paste production place in Jor Village, East Lombok District Dini Yuliansari; Enida Fatmalia; Wahyudin Wahyudin
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.v18i4.5255

Abstract

This study aimed to determine the quality of dug well water around the shrimp paste production site in Jor Hamlet, Jor Village, Jerowaru District, East Lombok Regency. The type of research used is an experiment with two parameters based on Minister of Health Regulation Number 32 of 2017, namely Biological Parameters, including Coliform and Escherichia coli. The sampling points in this study consisted of three water sampling points from residents' dug wells with two repetitions of sampling in Jor Hamlet, Jor Village, East Lombok Regency, and with consideration of sampling points based on the distance of the dug well to the location of making shrimp paste in below 10 meters and the shrimp paste production site does not have a good wastewater disposal system. Water quality around the shrimp paste production site in Jor Hamlet, Jor Village, Jerowaru District, East Lombok Regency, several parameters do not meet the requirements based on Minister of Health Regulation Number 32 of 2017 concerning Environmental Health Quality Standards and Water Health Requirements for Sanitation Hygiene, Swimming Pools, Solus Per Aqua, and Public Baths, namely Coliform Parameters, samples at sampling points A and B exceed the Quality Standard, namely 230 in both repetitions, while the Maximum Quality Standard is 50 MPN/100 ml. The Escherichia coli Parameters for all samples at all sampling points meet the Quality Standards, namely 0 MPN/100 ml samples, or there may not be Escherichia coli in clean water intended for Sanitary Hygiene. The highest research results for Coliform and Escherichia coli parameters were high at several points due to the distance between the well and the shrimp paste production site, which was very close, and the shrimp paste production site did not yet have a good wastewater disposal system.
Biology education student responses on teaching campus program Hafizatil Adni; A. Wahab Jufri; Karnan Karnan
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.v18i4.5263

Abstract

The teaching campus (kampus mengajar) is part of the Independent Learning Independent Campus (Merdeka Belajar Kampus Merdeka), MBKM program which provides opportunities for students to provide teaching assistance in basic education units. This study aims to analyze the responses of Biology Education Study Program students at FKIP, University of Mataram to the teaching campus. This study uses a quantitative descriptive method, with sample in this study were 57 students participating in campus teaching batches 2, 3, 4, and 5. The results showed that students’ responses to the teaching campus from agree to disagree were obtained with 37.65% positive responses, 29.82% neutral responses and 33.3% negative responses. Student responses in indicators of knowledge about the teaching campus (42.11%) were positive, (29.82%) neutral, (17.54%) negative, and (10.53%) very negative. Student responses to the teaching campus activity indicator (33.33%) were positive, (36.84%) neutral, (24.56%) negative, and (5.26%) very negative. Student responses to the benefits of the teaching campus indicators (10.53%) were very positive, (19.30%) positive, (47.37%) neutral, (17.54%) negative, and (5.26%) very negative. This shows that most students respond positively to the teaching campus program, because through the teaching campus students get teaching experience, understand the context related to education, and can develop soft skills by doing activities directly in the community and developing creativity to make new innovations to create independent learning.
Effect of vegetable waste and banana stump composition in casabo fertilizer on nitrogen and phosphorus concentration Firda Ainun Nisah; Wahyudin Wahyudin; Neneng Winarsih; Putri Febriyani
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.v18i4.5273

Abstract

Liquid organic fertilizer is a solution resulting from the decay of organic materials derived from plant waste that contains more than one element. In Karawang, precisely in Telagasari Village, is the village with the largest banana fruit producer in West Java. In the Karawang market, a lot of vegetable waste has yet to be utilized, so it only causes a bad smell which can eventually cause disease. And there is not much processing of chicken eggshells even though they have a lot of nutritional content. CASABO fertilizer is a liquid organic fertilizer made from variations in chicken eggshells, vegetables, and banana stump composition. This research aims to utilize waste and make it a useful fertilizer for plants. This type of research is quantitative research using research methods or field experiments. This study consisted of 6 variations in the composition of eggshells, vegetable scraps, and banana stump. All materials were mixed with EM-4 and sugar water in the fermentation process. The results showed that the amount of material used affected the value of nutrients: pH 7.59° in P3, moisture content 92.65 in P2, Nitrogen 0.18% in P5, and phosphorus 0.04 in P1 and P2. In P1, the C-organic nutrient content was 5.54%, the C/N ratio was 79, and the potassium nutrient content was 0.09%. Based on these results, it can be seen that variations in the composition of vegetables and banana roots affect the value of phosphorus concentration and nitrogen concentration in CASABO organic liquid fertilizer.
Development of teaching material based on plomp development model to support merdeka curriculum on global warming topic Melati Alicia Firdaus; Mawardi Mawardi; Okta Suryani
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.v18i4.5286

Abstract

The COVID-19 pandemic has resulted in changes and impacts on education in Indonesia. One of the impacts is the emergence of learning loss, where students lose the competencies learned before and could be more optimal at completing learning. The government is updating the curriculum to overcome the existing problems. Based on the Ministry of Education, Research, and Technology decision, the curriculum applied now is the Merdeka   Curriculum. With curriculum changes, additional teaching tools are needed as references that will be used in the learning process for teachers and students. Teaching materials are one teaching tool that teachers can use in the classroom. This study aims to produce Teaching Materials to Support The Merdeka Curriculum Learning on Global Warming Caused by Human Activities Material in Phase E. The research method used is Educational Design Research (EDR) using the Plomp development model, which consists of three stages: (1) Preliminary Research, (2) Development or Prototyping Phase, and (3) Assessment Phase. Data collection is carried out using a validity questionnaire sheet that will be given to five validators consisting of three lecturers and two teachers. Two teachers and nine high school phase E students will receive a practicality questionnaire sheet. Data from the research results show that the validity test conducted by five validators obtained a valid category score with a validity value of 0.89. The results of the practicality test on students obtained a score of 93% with a very practical category, and the value of the practicality test on the chemistry teacher was 92% with a very practical category. Teaching Materials to Support the Merdeka Curriculum Learning on Global Warming Caused by Human Activities Material are included in the valid and practical categories.
Development of teaching material based on plomp development model to support indonesian merdeka curriculum on chemical bonding topic in Phase E Aviva Alamanda; Mawardi Mawardi; Okta Suryani
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.v18i4.5288

Abstract

This research aims to develop teaching materials that support independent curriculum learning by measuring the adequacy and practicality of the Phase E chemical bonding topic. The type of research is Educational Design Research (EDR) using the Plomp development model. This study was conducted in the 2022/2023 academic year at senior high school SMAN 8 Padang, Indonesia. Data were collected using efficacy and utility questionnaires. As a result, we found that the valid categories have an average relevance of 0.85 in developing teaching materials. Utility test results for student answers show an average of 93% practicality in the very practical category, and utility test results for teacher answers show an average of 97% practicality in the very practical category. Overall, the results demonstrate that developing teaching materials that support independent curriculum learning using Phase E chemically bonded materials is valid and practical. Chemical bonds are a vital material taught in Phase E. The chemical bonds described in this article include ionic and covalent bonds. This textbook provides definitions of ionic and covalent bonds, examples of assignments, and discussions. In addition, primary chemistry education is explained with examples of how chemical bonds are applied in everyday life to make it easier to understand chemically bonded substances. The material includes practice assessment questions to check how well students understand the material. This material is expected to be useful for teaching and learning activities for teachers, and it will be easy for students to learn and understand.
Implementation of socio-scientific issues learning to improve students critical thinking skills Defania Hasyyati Rosyidah; Hasan Subekti
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.v18i4.5317

Abstract

This study aims to describe the implementation of socio-scientific issues learning, critical thinking skills, and student learning responses. This research is quantitative. This pre-experimental study used the One Group Pretest Post-test Design. The subjects in this study were 23 students of class VIII B at UNESA YDWP Laboratory Middle School. The instruments used were observation sheets of learning implementation, critical thinking skills test sheets, and response questionnaire sheets. Data analysis techniques on learning implementation sheets and response questionnaires were calculated based on the mode value, then on critical thinking skills using t-test analysis and effect size. The study results showed that learning socio-scientific issues can be carried out in very good categories. Students' critical thinking skills have increased as indicated by the acquisition of the t-test of critical thinking skills tcount > ttable or 18.852 > 2.074 with a significance level of 0.000 <0.05, so H0 is rejected, and Ha is accepted. So, it shows a significant difference in value between the pretest and post-test scores. Calculating the effect size of critical thinking skills was also carried out with a value of 3.924 in the very large category so that socio-scientific issues learning effectively influenced critical thinking skills. The results of student responses agree on learning socio-scientific issues that are interesting, easy to understand, and useful for everyday life. Thus, there is an increase in students' critical thinking skills after applying socio-scientific issues learning.
Synthesis and characterization of hydroxyapatite-nanosilver-clove oil (Eugenia Caryophyllus) as antibacterial in toothpaste preparations against streptococcus mutans bacteria Browi Nugroho; 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.v18i4.5325

Abstract

The formation of dental caries results from the activity of Streptococcus mutans bacteria. One of the efforts to prevent dental caries is using toothpaste containing antibacterial compounds such as hydroxyapatite-nanosilver-clove oil. This study aims to synthesize and characterize hydroxyapatite-nanosilver-cloves oil as an antibacterial that causes dental caries. In this study, physical properties were tested, namely, particle size with PSA, spreadability, stickiness, homogeneity, and chemical properties tested in functional groups with FTIR, pH, and antibacterial activity with the disc diffusion method. This study used 2% hydroxyapatite, ten ppm nanosilver, tween 80, xanthan gum, 70% sorbitol, sodium benzoate, sodium lauryl sulfate, sodium saccharin, calcium carbonate, peppermint, distilled water, clove oil with variations in the addition of concentrations of 1%, 2%, 3%, and 4%. The synthesis results produced a toothpaste preparation made from hydroxyapatite-nanosilver-clove oil, as evidenced by the results of FTIR characterization showing the presence of OH-, CO32-, PO43-, C-H, C-O, and C=O functional groups. PSA results show hydroxyapatite-nanosilver-clove oil has an average size of 4464 nm which is not included in the nanoparticle category (<100 nm). The toothpaste spreadability test resulted in a spread diameter of 5-6 cm, which met the requirements for paste spreadability (5-7 cm), while the adhesion test resulted in adhesion (7-12 seconds) which has not met the ideal requirements (1-6 seconds). The pH measurement resulted in a toothpaste pH of 8.8-9.0 per SNI (4.5-10.5). The homogeneity test of the toothpaste has met the requirements according to SNI, namely the absence of air bubbles, clumps, and separated particles. The antibacterial activity test showed that the hydroxyapatite-nanosilver-clove oil toothpaste formulation was able to inhibit the growth of S.mutans bacteria with the highest inhibition diameter in the variation of adding 4% concentration of clove oil, namely 14.99 mm with normally distributed data (p>0.05). One Way ANOVA statistical analysis showed that the treatment variation had a significantly different effect (p<0.05). These results indicate that adding clove oil into the formulation of hydroxyapatite-nanosilver-clove oil toothpaste can affect its chemical, physical, and antibacterial activity.
Development of practicum guideline active compound isolation base on medical plant in Sasambo Society, Indonesia Aliefman Hakim; A Wahab Jufri; Agus Ramdani; AA Sukarso; Jono Irawan
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.v18i4.5412

Abstract

The people of NTB have many distinctive cultures and cuisines. The use of plants is traditional medicine. This study aims to develop practical guidelines based on the medicinal plant sasambo, NTB. Development design is Research & Development with a 4D model (define, design, develop, and disseminate). The results of laboratory experiments are outlined in practicum guidelines for student activities. Chemistry lecturers in chemistry and natural product chemistry constructively validate the procedures. The analytical method uses Aiken's V formula and percentage agreement. The results of the expert validation show that the practicum guidelines meet very valid criteria with an Aiken value of 0.86. The guidelines also received positive responses from students and expert validators with an average practicality level of 88.6% with very practical criteria. Guidelines can be applied to learning with a percentage agreement of 100%. The cultural richness applied to learning can increase motivation learning and encourage students to be creative in developing products from the Sasambo milk medicinal plant.
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.

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