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Saprizal Hadisaputra
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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 22 Documents
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Search results for , issue "Vol. 18 No. 1 (2023): January 2023" : 22 Documents clear
Analysis of students spatial ability in solving problems of flat side space subjects based on van hieles level of thinking Iqra Matul Aulia; Sudi Prayitno; Ulfa Lu luilmaknun; Nyoman Sridana
Jurnal Pijar Mipa Vol. 18 No. 1 (2023): January 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.v18i1.3186

Abstract

This study aims to describe students' spatial abilities in solving geometrical problems of flat-sided shapes based on van Hiele's level of thinking in grade eight junior high school of SMP Negeri 1 Aikmel in the academic year 2020/2021. This type of research is descriptive qualitative. The research subjects were taken by purposive sampling, namely nine students of class VIII consisting of 3 students, each with van Hiele thinking level 0 (visualization), level 1 (analysis), and level 2 (abstraction). Subjects were selected based on having received material on plane shapes and had taken the van Hiele geometry test. Data collection techniques were van Hiele's geometry ability test, spatial ability test, and interviews. Data validity uses Aiken and triangulation methods. The results of this study indicate that: (1) subjects with level 2 (abstraction) have spatial abilities consisting of visualization, spatial orientation, and spatial rotation. (2) subjects with level 1 (analysis) have spatial abilities consisting of spatial orientation. (3) subjects with level 0 (visualization) do not have spatial abilities.
Butterfly community (Lepidoptera) at Joben Tourism Park (Joben Eco Park) Regency of East Lombok Rahmatul Aulani Yuniartin; Mohammad Liwa Ilhamdi; Gito Hadiprayitno
Jurnal Pijar Mipa Vol. 18 No. 1 (2023): January 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.v18i1.3780

Abstract

Joben Eco Park is located in the ​​Joben Resort area, Mount Rinjani National Park Center Pesanggarahan Village, Montong Gading Subdistrict, East Lombok Regency. This research is an exploratory, descriptive study that aims to discover the butterfly community in Joben Eco Park, East Lombok Regency. Data collection used a purposive survey method whit a sweeping technique following two predetermined observation lines. The research results were obtained from 375 individual butterflies covering 29 species, with 11 genera and 4 families. Analysis of the butterfly diversity index using the Shannon-Winner formula obtained a butterfly species diversity index value in Joben Eco Park in general of 3.033, which falls into the high category. Analysis of the dominance index using a formula from Simpson obtained a value of 0.06.
The use of multimedia interactive to improve students science literacy in the new normal era Ainus Shofawati; Wahono Widodo; Dhita Ayu Permata Sari
Jurnal Pijar Mipa Vol. 18 No. 1 (2023): January 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.v18i1.3832

Abstract

This study aims to describe the influence of interactive multimedia on students' science literacy in the new normal era and student responses after learning using interactive multimedia on energy flow materials. The type of research used is pre-experimental design research through one group pretest-postest design. The subjects in this study were 31 students of class VIIC in Muhammadiyah Junior High School 2 Taman Sidoarjo, even semester of the 2021/2022 academic year. Data collected by techniques use observation, tests, and questionnaires. Research instruments include observation sheets for the implementation of learning, science literacy tests, and student response questionnaire sheets. The data were analyzed descriptively using the N-Gain test, the implementation observation sheet, and the response questionnaire. The results showed that the implementation of learning using interactive multimedia on energy flow materials got the criteria for being carried out properly. Students' science literacy skills increased from an average pretest score of 38.5 to 81 on the posttest, with an average N-Gain score of 0.69, categorized as moderate. The learning process and the use of interactive multimedia applications on energy flow materials were also responded to positively by students. Based on the description above, learning using interactive multimedia on energy flow materials can improve students' science literacy skills in the new normal era.
Identification of traditional science-based games to improve early childhood development in Central Lombok District Baik Nilawati Astini; Ika Rachmayani; Nurhasanah Nurhasanah; Ni Luh Tania Putri Wijaya
Jurnal Pijar Mipa Vol. 18 No. 1 (2023): January 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.v18i1.3919

Abstract

Giving educational stimulation in early childhood can be given through games. Traditional science-based games make an important contribution to supporting children's development. This study aimed to identify traditional games in Central Lombok Regency that can be played in early childhood and how to play traditional games to improve children's development. This research is survey research conducted at Central Lombok Regency. This research uses observation data collection methods, interviews, and documentation. The subjects of this study were six community leaders or cultural leaders and five teachers. Data analysis used descriptive qualitative analysis. The results showed that there were 28 identified traditional games. After being reviewed and verified based on the criteria for tools and materials used: playground, gender, age of players, number of players, and how to play, 23 traditional games were obtained:  fort, bekel, ciwe, cepun, do mi gift, merchandise, long dragon snakes, marbles, playing rope, pese-pese'an, temeong-meong, gobak sodor, trumpets, cingkaleng, manuk brackets, splashing, temong-meong, school stones, playing moon, cupring, segem, playing war and coffee. Traditional games use tools, do not use tools, and use poetry/songs. How to play traditional games each game has steps similar to each others. Based on these criteria, traditional games can indirectly improve child development such as cognitive, language, social-emotional, religious and moral values, physical-motor, and artistic.
Determination of flavonoid levels of Macaranga gigantea and its activity as antioxidants Samsul Hadi; Dian Ekowati; Amalia Khairunnisa
Jurnal Pijar Mipa Vol. 18 No. 1 (2023): January 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.v18i1.4054

Abstract

One of the ways to prevent generative diseases is by using natural antioxidant compounds. The flavonoid compounds in the flower parts of M. gigantea have a role in antioxidants. Thus the study aimed to test the antioxidant activity and flavonoid levels of M. gigantea flowers. The antioxidant test was carried out by UV-vis spectrophotometry using 2,2-diphenyl-1-picrylhydrazyl and flavonoid assay using 10% aluminum chloride and potassium acetate, both tests using quercetin as a comparison. The results of this test obtained IC50 antioxidants 145,725 ± 3.858 ppm, and flavonoids were 1,860 ± 0.007% w/w eq quercetin. The conclusion from the experiments that have been carried out is that M. gigantea flowers have moderate antioxidant abilities.
Cytotoxicity activity of ethanol extract of mentangor stem skin (Calophyllum rufigemmatum) against breast cancer cells MCF-7 in vitro: Chemistry Widia Widia; Eresti Ependi; Addela Amelia; Candra Candra; Occa Roanisca
Jurnal Pijar Mipa Vol. 18 No. 1 (2023): January 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.v18i1.4113

Abstract

Cancer is one of the non-communicable diseases that causes the most death in Indonesia. In a study conducted by researchers from Northwestern University on 686 breast cancer patients, 36% of women chose to stop their treatment because they could not tolerate the side effects of the drug. The patient's side effects were joint pain, hot flashes, increased weight gain, and nausea. Mentangor plant (Calophyllum rufigemmatum) is a plant that grows a lot in Bangka Belitung and has been used by the people of Bangka Belitung as a traditional medicine to treat skin diseases. Research on the bark of the mentangor stem from Bangka Belitung has never been carried out regarding its phytochemical content and potential as an anticancer breast. For this reason, it is necessary to know breast cancer's pharmacological effects and phytochemicals on Mentangor Bangka Belitung's stem bark. Phytochemical identification was carried out qualitatively by observing changes in the test sample. Based on the results of phytochemical screening, several reactions showed that each test of the ethanol extract of the stem bark of Mentangor contained tannins, phenolics, flavonoids, and alkaloids. The measurement results of the IC50 value of inhibition of the proliferation ethanol extract with a diameter of 1 cm, 7 cm, and 17 cm against MCF-7 breast cancer cells were 326,195 g/mL, respectively; 186.178 g/mL; and 178.090 g/mL.
Digitalization of the laboratory management module for strengthening the laboratory skills of prospective science teachers Susanti; Ani Widyawati; Laily Rochmawati Listiyani; Tri Astuti Arigiyati; Tias Ernawati
Jurnal Pijar Mipa Vol. 18 No. 1 (2023): January 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.v18i1.4267

Abstract

The transition to online learning since the start of the Covid-19 pandemic has forced all parties to respond quickly to the use of information technology. Various applications are used in the learning process. Of course, this was followed by the digitization of learning tools, including the Laboratory Management course held by the Science Education Study Program of the University of Sarjanawiyata Tamansiswa. Learning tools are needed to accommodate Course Learning Outcomes (CLO), one of which is a module. The modules are comprehensive, systematic, and accompanied by a planned learning experience designed to help students master the learning objectives. This research is a preliminary stage of research on the digitalization of module products which was carried out using the Borg and Gall models. This study aims to describe the need to develop the digitalization of the Science Laboratory Management course module to strengthen the laboratory skills of prospective science educators. The method used is a literature study of the needs and other considerations related to the development of module products. The study results stated that digitizing the Laboratory Management module makes it easier for students to access materials anywhere and anytime. Learning becomes more focused and structured. The e-module was developed by considering the laboratory skill needs of prospective science educators. The selected laboratory skill indicators include mastery of practical tools, accuracy and accuracy of work, Occupational Safety and Health, and handling of chemicals.
Articulates storyline media-based discovery learning for training students critical thinking skill Fhina Noviyanti; Lulu Tunjung Biru; Septi Kurniasih
Jurnal Pijar Mipa Vol. 18 No. 1 (2023): January 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.v18i1.4287

Abstract

Critical thinking skills are crucial skills to be mastered by students in the 21st century. Critical thinking skills are also needed in the learning process, one of which is science learning. The Articulate Storyline learning media was developed to overcome students' need for critical thinking skills in science lessons. The research carried out is a development research (R&D) based on the Borg and Gall development model conducted by the Puslitjaknov Team. This study aims to analyze the level of validation of the Articulate Storyline learning media based on discovery learning in science learning in training the critical skills of junior high school students. The instrument involved in this study was an expert validation test questionnaire. The data presented in the study are qualitative and quantitative. Material experts who received validation results reached 88% in the "very valid" category, media experts got 100% in the very valid category, and science teachers scored 84% in the "valid" category. The discovery learning-based Articulate Storyline learning media that was developed has a good level of validation and can be used to train students' critical abilities.
Development of online student worksheet based on scientific approach to improve critical thinking ability in Junior High School Eris Wulan; Liska Berlian; Septi Kurniasih
Jurnal Pijar Mipa Vol. 18 No. 1 (2023): January 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.v18i1.4336

Abstract

This research is based on learning activities in several junior high schools in Tangerang that have yet to be oriented to students' integration and critical thinking skills. The ability to think critically in learning can be done by growing it through electronic teaching materials like an electronic worksheet with a scientific approach. STUDENT WORKSHEET is compiled using a flip pdf builder application to support learning in the 21st century by utilizing technology. The purpose of this study was to design student worksheets in electronic form with a scientific approach to the theme of the role of biotechnology in food diversification to foster the critical thinking skills of class IX students. The research method used is Research and Development (R&D) development research with Thiagarajan development design through modifications that are tailored to the needs of researchers with being limited to the expert validation stage, which includes the following stages: Definition ( Define), Design ( Design ), Development ( Develop ). The instrument used is a material expert validation questionnaire sheet, media expert, and science teacher. The results of this study indicate the validity of the student worksheet by obtaining an average percentage value of 79.92% with a valid category which includes material experts at 63.7% with a valid category, teaching media experts at 81.96% with very valid categories, and teachers IPA is 94.11% with a very valid category.
Antibacterial activity test of celery leaf (Apium graveolens) extract liquid hand soap against Staphylococcus aureus Sri Idawati; Adriyan Suhada; Roushandy Asri Fardani; Septadel Arini
Jurnal Pijar Mipa Vol. 18 No. 1 (2023): January 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.v18i1.4421

Abstract

Personal and environmental hygiene must be considered to prevent the transmission of COVID-19. One of them is by washing hands with soap. Liquid soap is a skin cleanser made from soap-based ingredients and added surfactants, preservatives, foam stabilizers, fragrances, and dyes. The basic ingredients for soap can be natural, one of which is essential oil. Celery contains essential oils (alinin and allicin), flavonoids, protein, vitamin A, vitamin C, vitamin B, iron, calcium, sulfur, and phosphorus. Essential oil from celery has activity as an antifungal and is active against many bacteria, including Staphylococcus aureus. This study aims to determine the celery extract liquid hand soap has antibacterial activity against Staphylococcus aureus bacteria and the effective concentration of celery leaf extract liquid hand soap on the antibacterial activity of Staphylococcus aureus. The research method was laboratory experimental by testing the antibacterial activity of liquid hand soap formulations of celery leaf extract. The results of the organoleptic test were green in color, in viscous liquid form, and had a distinctive celery aroma. The pH test obtained a pH of 9.4 in the 5% formulation (FI), pH 9.5 in the 10% formulation (FII), and pH 9.3 in the 15% formulation (FIII). Antibacterial activity test FI, FII, FIII, negative control, and positive control resulted in a diameter of 17.1 mm inhibition zone; 23.2 mm; 17.4 mm; 0 mm, and 22.9 mm. The results of the one-way ANOVA test obtained a p-value <0.05, which indicated that H1 was accepted, i.e., liquid hand soap with celery leaf extract had antibacterial activity against Staphylococcus aureus. The Tukey test showed that the diameter of the FII inhibition zone (10% concentration) was close to that of the positive control inhibition zone. The most effective concentration is 10% (FII), with a very strong inhibition category.

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