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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
 80   81   82   83   84 
Enhancing Student Outcomes in Acid-Base Titration Through Assessment for Learning Ningtryas, Klara Dinda Ayu; Muchlis, Muchlis; Harahap, Ilham Pradana Putra
Jurnal Pijar Mipa Vol. 20 No. 2 (2025)
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.v20i2.7433

Abstract

The purpose of this study was to describe the implementation of assessment for learning-oriented learning and learning outcomes on acid-base titration material in class XI. This research was conducted in class XI-1 and XI-5 SMA Giki 1 Surabaya. The results showed that the implementation of assessment for learning-oriented learning on acid-base titration material as a whole received very good criteria. This is evidenced by the average percentage of implementation scores at the first meeting of 99.3% and 98.5% for classes XI-1 and XI-5, as well as the second meeting of 99% and 99.5% in classes XI-1 and XI-5 with the criteria for each meeting is very good. Learning outcomes through assessment applications for learning-oriented learning have increased in one sample t-test. The test found that posttest2 XI-5 - posttest2 XI-1 in both classes got a p-score> 0.05, then Ho was accepted, and Ha was rejected. Thus, the score for posttest 2 XI-1 was smaller than that of posttest 2 XI-5. There is no significant difference in posttest 2 between the two classes. So from this, it can be concluded that learning that applies the Assessment for Learning-oriented student worksheet is effective even though the average results of the two classes show differences.
Analysis of the Effectiveness of PBL-Oriented Interactive Electronic Student Activity Sheets Development on the Material of Factors Affecting Chemical Equilibrium to Improve Students Science Literacy Skills Mufidah, Rachma; Dwiningsih, Kusumawati
Jurnal Pijar Mipa Vol. 19 No. 5 (2024): September 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.v19i5.7434

Abstract

The science literacy skills of Indonesian students are still low based on the results of PISA 2022. Chemical equilibrium material is very important, and understanding chemical equilibrium is a prerequisite for understanding subsequent materials. One of the efforts to improve understanding of chemical equilibrium material is applying a student-centred learning model, the PBL model. PBL can also improve students' science literacy skills. Thus, research was conducted to develop PBL-oriented interactive electronic student activity sheets on chemical equilibrium material to improve students' science literacy skills. This research aims to describe the effectiveness of interactive E-LAPD as a learning media for improving students' science literacy skills. Research and development (Research and Development) is the type of research used.  The research design used in this research is the 4-D model development research design according to Thiagarajan's 4-D model, which consists of the define, design, develop, and disseminate stages. The instrument used in this research is a pretest and posttest sheet of science literacy skills to measure students' science literacy skills. This research used a limited trial with a one-group pretest-posttest research design. The limited trial was conducted at SMAN 1 Kedamean with 36 class XI MIPA 3 students. The effectiveness results analyzed using the paired sample t-test obtained a p-value of 0.000, which indicates that the posttest value after learning using interactive E-LAPD is greater than the pretest value before learning using interactive E-LAPD. Thus, PBL-oriented Interactive E-LAPD can be said to improve students' science literacy skills.
The Effects of Pond Type and Water Quality Dynamics on Vannamei Shrimp Growth: A Dummy Regression Analysis Supriatin, Febriyani Eka; Rahmawati, Aulia; Dailami, Muhammad
Jurnal Pijar Mipa Vol. 19 No. 5 (2024): September 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.v19i5.7497

Abstract

Vannamei shrimp is one of Indonesia's leading aquaculture sector commodities due to its high survival rate, short cultivation time, and disease resistance. Vannamei shrimp cultivation in Indonesia adopts an intensive system favoured for high productivity. In intensive cultivation systems, shrimp ponds typically utilize concrete or high-density polyethylene (HDPE) ponds. Each type has its own positive and negative side that affects the growth and production of Vannamei shrimp. Apart from the type of pond, water quality also played an important role in the growth of Vannamei shrimp. Water quality is one of the important factors in intensive shrimp cultivation. Pond type is categorical data and has a nominal measurement scale, while water quality is numerical data with a ratio measurement scale; ordinary regression analysis is unsuitable for analyzing the effect of pond type and water quality on the growth of Vannamei shrimp. Therefore, a dummy regression model accommodates these measurement scale differences. This research aims to determine the effect of different types of ponds and water quality dynamics on the growth of Vannamei shrimp and to select the best type of pond for intensive cultivation of Vannamei shrimp. Additionally, it aims to identify the water quality parameters that most influence the growth of Vannamei shrimp so that it can serve as a reference for Vannamei shrimp farmers to achieve high productivity efficiently. The study was conducted from November 2022 to January 2023 in Banyuwangi Regency, East Java Province, Indonesia. There are three concrete ponds and 10 HDPE ponds. The research method employed in this study is a survey method utilizing simple random sampling. The parameters in this research are the quality of cultivation water, including pH, temperature and dissolved oxygen (DO). The water samples taken are then measured for water quality in the laboratory. The results of this study indicate that the average values for water quality are still within the optimal range. The average ABW in HDPE and concrete ponds ranges from 2.30 to 9.39 grams per shrimp and 2.22-9.73 grams per shrimp.  Based on the study's results, it can be concluded that different pond types and water quality dynamics, specifically pH and temperature, affect shrimp growth based on ABW. However, when considering SGR values, the type of pond does not have a significant impact. The water quality parameters that affect SGR are pH and temperature.
Phytoplankton Diversity as a Bioindicator for Coastal Water Quality of Kecinan Beach North Lombok Regency Shofiana, Dwi Auliya; Candri, Dining Aidil; Japa, Lalu; Setyaningrum, Tri Wahyu; Munawaroh, Anggi Nurhardiyanti
Jurnal Pijar Mipa Vol. 20 No. 1 (2025)
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.v20i1.7507

Abstract

Kecinan Beach is one of the beaches on Lombok Island with many tourism activities. The activities in Kecinan Beach can influence the water quality, as the waters may receive waste from surrounding areas, leading to potential pollution or a decline in water quality. Phytoplankton are living organisms that can indicate whether a water body is polluted, which can be marked by changes in the community structure of phytoplankton, particularly in abundance and diversity. Water quality based on phytoplankton diversity as a bioindicator in Kecinan Beach has not been reported. This study was conducted to analyze the water quality of Kecinan Beach based on phytoplankton diversity as a bioindicator. Samplings were carried out in 9 sites in 3 stations during the month of March to June 2024. Samples were collected using a plankton net of 20µm mesh size. Samples were preserved in 4% formalin preservation and laboratory observation was conducted in the biology laboratory of FMIPA University of Mataram. The study identified 56 species from  3 classes, 21 families and 30 phytoplankton genera. The phytoplankton abundance in the coastal waters of Kecinan Beach was 126.667 ind/L. The species dominance index of phytoplankton of coastal waters of Kecinan Beach was 0.258, indicating no species dominance to each other. Rhabdonema arcuatum was identified as the highest (158%) species importance value. The species diversity index of phytoplankton of the coastal waters of Kecinan Beach was a moderate category. Based on the species diversity index, it can be said that the waters of Kecinan Beach are not polluted.
Community Structure, Abundance and Ecological Index of Phytoplankton in Jembrana Coastal Waters, Bali Satyawan, Noar Muda; Rakhma Fitria Larasati; Made Mahendra Jaya; Iya Purnama Sari; Yulia Estmirar Tanjov; Muh. Arkam Azis
Jurnal Pijar Mipa Vol. 19 No. 5 (2024): September 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.v19i5.7523

Abstract

Phytoplankton is an important component in aquatic ecosystems. Apart from producing oxygen, phytoplankton also act as primary producers in the food chain. Bali Sardinella (Lemuru) is an important fishery commodity in the Bali Strait, which is known to eat plankton (Plankton Feeder), so its existence depends on the distribution of plankton. This descriptive research aims to determine the community structure, abundance and ecological index of phytoplankton in the coastal waters of Jembrana Regency. Sampling was conducted in July 2023 at five observation stations in the coastal waters of Jembrana Regency (Pengambengan Beach, Perancak Beach and Delod Berawah Beach). Around 250 litres of seawater was filtered by a plankton net measuring 35 mm. The filtered samples collected in a 100 ml collecting bottle were then transferred to a 120 ml sample bottle and preserved in 4% formalin. The samples obtained were taken to the laboratory for observation under a microscope. This research shows that 66 types of phytoplankton were found to belong to 5 classes in the waters of Jembrana, Bali. The Bacillariophyceae class were found with the highest number of species (44 species), followed by the Dinophyceae (19 species), Chlorophyceae (1 species), Cryptophyceae (1 species), and Cyanophyceae (1 species). Based on the results of calculating phytoplankton abundance, various abundance values ​​were obtained at each observation station. Station 2 has the highest abundance of phytoplankton with 297 individuals/l followed by Station 1 (221 individuals/l), Station 4 (130 individuals/l), Station 3 (127 individuals/l), and Station 5 (36 individuals/l). The species Diversity Index (H') ranges from 2.61 - 2.83, the Dominance Index (C) ranges from 0.07 - 0.13, and the Evenness Index (e) ranges from 0.72 - 0.95. The ecological index value shows that the phytoplankton community in Jembrana coastal waters included in the moderate diversity category is not dominant and evenly distributed. The ecological index value shows that the water quality is categorized as moderately polluted.
Improving Critical Thinking Skills With The Help of STEAM (Science, Technology, Engineering, Art and Mathematics) on Business And Energy Material Description Questions. Rasmi, Dian Periwi; Hendri, Menza; Yunicha, Tiara
Jurnal Pijar Mipa Vol. 20 No. 2 (2025)
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.v20i2.7993

Abstract

This research is a type of research and development using the Borg & Gall development model which consists of initial research and data collection stages, planning, product draft development, initial field trials, initial field trial revisions, main product tests and finally product refinement. At this stage, an assessment instrument with STEAM will be produced which is then validated by a team of experts which is then tested on students to determine the level of validity, reliability, level of difficulty and differentiation of questions. The subjects of the trial in this study are students of class X-E3 of SMA N 1 Jambi City which totals 20 students & students of class X-E1 SMA Adhyaksa 1 Jambi City which totals 20 students. The products produced in this development research are based on the results of the development and trials that have been carried out, it can be concluded that this STEAM loaded assessment instrument has been declared suitable for use from the results of the validation of the expert team and the analysis of question items.
Students Perception of Citizen Science's Contribution in Improving Scientific Argumentation Skills on Environmental Change and Sustainability Materials Agung, Achmad; Mubaarak, Raaqa Alfath; Ramadani, Rima; Roviati, Evi
Jurnal Pijar Mipa Vol. 20 No. 2 (2025)
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.v20i2.8277

Abstract

Citizen Science is considered a way to improve the relationship between research, education, and action by involving non-professionals in scientific research. Through Citizen Science, students will be trained to think critically and construct scientific arguments based on data and evidence they collect on their own. However, the scientific argumentation ability of students in several high schools in Region III of Cirebon is still relatively low. Based on the results of surveys and interviews with Biology teachers in the region, learning is still dominated by the Teacher-Centered approach, where the learning process is more teacher-centered. This research is a descriptive qualitative research conducted to determine students' perceptions of Citizen Science's contribution to scientific argumentation skills on environmental change and sustainability, using a descriptive method. The population in this study is MA and SMA in the Cirebon City/Regency area, while the schools sampled in this study are SMA Negeri 1 Source, SMA Negeri 8 Cirebon City, and MA Salafiyah Cirebon City. The data collection techniques used in this study are structured interview techniques and questionnaires, and based on questionnaires and interviews there are a variety of answers obtained, but in general many students are new to Citizen Science, and students' interest in agreeing to the Citizen Science hypothesis can improve scientific argumentation skills and critical thinking skills, in addition to the level of relevance between Citizen Science and environmental change and sustainability materials have great potential to be implemented.
Development of Scratch-Based Srikandi Media for Indonesian Cultural Heritage in Elementary School: A Preliminary Study Salzabila, Putri Alicia; Fakhriah, Fina; Fajrie, Nur
Jurnal Pijar Mipa Vol. 20 No. 2 (2025)
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.v20i2.8426

Abstract

This research aims to develop Scratch-based learning media called SRIKANDI on IPAS material for grade IV elementary school, especially Chapter 6, "Indonesia Cultural Heritage". This media is designed to increase student motivation, engagement and understanding of the material through an interactive technology approach. The research used the Research and Development (R&D) method with a model of ADDIE (Analysis, Design, Development, Implementation, Evaluation). This research is limited only to the analysis stage. The data collection techniques are questionnaires, observations, interviews and relevant literature studies. The population in this study is SD 4 Gulang. The participants in this study were 21 fourth-grade students and teachers. Data were analyzed using descriptive analysis. The results of this study showed that the learning media used are still limited to handbooks and worksheets, and the use of interactive multimedia is only limited to PowerPoint. Hence, it is necessary to develop interactive multimedia on IPAS material, especially Indonesia’s Cultural Heritage material, that suits the needs of students to achieve learning objectives. Based on this, it can be concluded that interactive multimedia with a contextual approach needs to be developed in IPAS subjects. Based on this, it can be concluded that interactive multimedia with a contextual approach needs to be developed in IPAS subjects.
Analgesic Activity Test Of Leunca Leaves (Solanum nigrum L.) Ethanol Extract With Randall Selitto Method Ariasti, Mia; Sofya, Sri Winarni
Jurnal Pijar Mipa Vol. 20 No. 2 (2025)
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.v20i2.8439

Abstract

Abstract: Pain is a sensory and emotional experience related to tissue damage. This study aims to determine the analgesic effect of leunca leaf ethanol extract and determine the dose of leunca leaf ethanol extract that has the highest analgesic activity with the Randall Selitto method. Randall Selitto method has been widely used for the development of non-steroidal anti-inflammatory drugs. Leunca leaf powder was extracted using maceration method with 96% ethanol solvent. A total of 25 wistar male white rats were divided into 5 groups, namely positive control mefenamic acid 9 mg / 200 g BW, negative control CMC Na 1%, ethanol extract of leunca leaves doses of 5 mg / 200 g BW, 10 mg / 200 g BW and 20 mg / 200 g BW. The data obtained were analyzed by ANOVA test, then LSD test was used to determine the differences between groups. The results showed that the extract doses of 5 mg / 200 g BW, 10 mg / 200 g BW, 20 mg / 200 g BW and positive control were significantly different from the negative control group. The extract dose of 20 mg / 200 g BB is comparable to the positive control, indicating that the extract dose of 20 mg / 200 g BB has the highest analgesic activity. Steroid and flavonoid compounds contained in leunca leaves are thought to have an effect as analgesics.
Environmental Literacy Analysis and Critical Thinking Skills of Middle School Students at SMP Geeta School in Understanding Science Education Febrihastatiwi, Dinda; Hayat, M. Syaipul; Roshayanti, Fenny; Novita, Mega
Jurnal Pijar Mipa Vol. 20 No. 2 (2025)
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.v20i2.8522

Abstract

Environmental issues have become a significant challenge both locally and globally, making it essential for every individual to play a role in creating a better world. This study aims to analyze the environmental literacy and critical thinking skills of 7th-grade students at SMP Geeta School in understanding science learning. The research employs a descriptive method with a quantitative approach, utilizing two primary instruments: the Middle School Environmental Literacy Survey (MSELS) and a critical thinking skills test. The study sample consists of 26 students. The findings indicate that students' ecological knowledge scores an average percentage of 60%, categorized as fairly good; environmental sensitivity scores 58%, also categorized as fairly good; and environmental feelings score 93%, categorized as very good. In the critical thinking skills test related to environmental issues integrated with the concepts of physical and chemical changes, the average percentage obtained is 45.8%, categorized as fairly good. The distribution of results across sub-indicators includes elementary clarification at 43% (fairly good), strategies and tactics at 63% (good), advanced clarification at 48% (fairly good), basic support at 35% (poor), and inference at 40% (poor). These results illustrate that the development of students' environmental literacy and critical thinking skills requires greater attention, particularly in aspects categorized as poor, to enhance students' understanding and awareness of environmental issues.

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