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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 23 Documents
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Search results for , issue "Vol. 17 No. 6 (2022): November 2022" : 23 Documents clear
Analysis of mathematical representation ability on pythagoras theorem reviewed from learning style of junior high school students Ni Nyoman Yustini Wikantari; Laila Hayati; Wahidaturrahmi Wahidaturrahmi; Baidowi Baidowi
Jurnal Pijar Mipa Vol. 17 No. 6 (2022): November 2022
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.v17i6.3311

Abstract

This study aims to determine the mathematical representation ability of class IX students with visual, auditory, and kinesthetic learning styles on the Pythagoras Theorem material at SMPN 1 (public junior high school) Gunungsari Indonesia in the 2021/2022 academic year. This type of research is descriptive with a quantitative approach. The populations in this study were all students of class IX SMPN 1 Gunungsari. The research sampling technique used purposive sampling, and the sample was class IX-H. The instruments used are learning style questionnaires, mathematical representation ability tests, and interview guidelines. The results of this study indicate that the mathematical representation ability of students with visual learning styles is 35.56% in the low category, or students have yet to be able to meet the overall visual, symbolic, and verbal representation indicators. Furthermore, the mathematical representation ability of students with auditory and kinesthetic learning styles is 49.86% and 41.87% in the medium category. Respectively, students have been able to meet the indicators of visual and symbolic representation quite well but have yet to be able to fulfill the visual and symbolic representation and verbal representation indicators.
Analysis of misconceptions of senior high school students on biodiversity materials, interactions, and their role in nature Mohammad Liwa Ilhamdi; Aulia Vina Rahmani; Muhamad Syazali
Jurnal Pijar Mipa Vol. 17 No. 6 (2022): November 2022
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.v17i6.3436

Abstract

Forming the student's right and correct concept in Biology science is necessary. Lack of understanding of concepts in students can lead to a discrepancy of concepts called misconceptions. This study aims to identify the profile of students' misconceptions in grade tenth on material biodiversity, interactions, and their roles in nature. The results showed that the average conception of students was more significant than those who experienced misconceptions. The average concept is 50.00%, while the average who experiences misconceptions is 29.41%, and 20.59% of students do not answer. If it is categorized in the assessment category, the percentage of misconceptions is in low category.
The use of banana peel as feed to increase growth of earthworms (Lumbricus rubellus) I Wayan Merta; Ahmad Raksun
Jurnal Pijar Mipa Vol. 17 No. 6 (2022): November 2022
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.v17i6.4037

Abstract

Research on using banana peels as feed to increase the growth of Lumbricus rubellus has been carried out. This study aims to determine: (1) the effect of different doses of banana peel pulp on feed on the growth of earthworms (Lumbricus rubellus), (2) the best dose of banana peel pulp to increase the growth of earthworms. This research is a one-factor study. The research was carried out with five levels of treatment and five replications. The doses of banana peel pulp are 0 ml, 250 ml, 500 ml, 750 ml, and 1000 ml. The parameters of the growth of earthworms measured were the addition of the number of individuals and the addition of the weight of the earthworm population. The research data were analyzed by analysis of variance. The research results show that: (1) the difference in the dose of banana peel pulp significantly affected the increase in the number of individuals and the weight of the earthworm population; (2) the addition of 1000 ml of banana peel pulp resulted in the highest number of individuals and the heaviest population weight compared to other treatment doses.
Diversity and abundance of bees (Hymenoptera: Apidae) in the campus 4 of Ahmad Dahlan University Ichsan Luqmana Indra Putra; Haris Setiawan; Suci Resty Rahmadini
Jurnal Pijar Mipa Vol. 17 No. 6 (2022): November 2022
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.v17i6.4049

Abstract

Land conversion around campus 4 of Ahmad Dahlan University Yogyakarta affects the diversity and abundance of pollinating insects, one of which is bees. The purpose of this study was to calculate the level of diversity and abundance of bees on campus 4 UAD and its surroundings. The sampling area consisted of 4 plots, with each plot measuring 1750 m2( 35 m x 50 m) determined using the observation method. Sampling was carried out three times, which was carried out in the morning at 07.00 – 11.00 and continued in the afternoon at 15.00 – 17.00. Bees were identified by comparing their morphological characters with identification reference books and journals. The Spearman correlation test then analyzed the bee abundance data and abiotic factors. The results showed that the level of bee diversity on campus 4 UAD and its surroundings was moderate (1 H' 3). The most abundant bee species was Xylocopa aestuan, with 118 individuals, and the least abundant was Apis mellifera, with 7 individuals. The conclusion of this study is the state of the ecosystem on campus 4 UAD and its surroundings, there is a disturbance in the form of land use change, but bees can still tolerate the disturbance.
Analysis of orthophosphate phytoremediation from hotel detergent waste and its effect on increasing biomass in water hyacinth plants (Eichhornia Crassipes) Febri Yanti; Anita Debora Simangunsong
Jurnal Pijar Mipa Vol. 17 No. 6 (2022): November 2022
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.v17i6.4107

Abstract

This research is motivated by the high levels of phosphate, which can be in the form of orthophosphate in the waters where most of it comes from hotel waste that contains detergents which are one of the factors of water pollution. The research aims to strive for an environmental mitigation engineering system to reduce or even eliminate pollution using a plant-based waste treatment technique known as phytoremediation. Phytoremediation uses water hyacinth, which utilizes water hyacinth plants as an adsorbent of waste containing phosphate in a medium. The phosphate levels in hotel detergent waste will be reduced before the waste is released into the waters of Lake Toba. The results of this study are that the pH and temperature are still following the parameters of the predetermined threshold; namely, the pH is around 6-9, and the temperature does not change. The average TSS test results decreased from the first, fourth, and seventh days to around 21. The average BOD test results did not meet the wastewater quality standard of more than 50 mg/liter. The average Orthophosphate test results increased so that the effect of water goiter to reduce pollution is not such a big impact, and the effect of the mass of water hyacinth before and after being put into the detergent waste decreased by an average of 3.75 grams.
Analysis of students difficulties in mathematics problem-solving ability on number pattern material Nur Mahsarah Rahadatul Aisy; Mulyono; Walid
Jurnal Pijar Mipa Vol. 17 No. 6 (2022): November 2022
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.v17i6.4149

Abstract

This research aims to analyze and describe students' difficulties in solving mathematical problem-solving abilities on number pattern material. The research method is qualitative research, with the research subjects being grade eight students in one of the schools in the city of Semarang in the academic year 2022/2023. The research instrument was in the form of a mathematical problem-solving ability test and interviews. The mathematical problem-solving ability test indicator uses the indicators proposed by NCTM, with the stages of problem-solving according to Polya. The results showed that students with the concept difficulty type could only understand the problem. The student with the principal difficulty type could carry out the strategy planning stage. Finally, the students with the conceptual difficulty type have been able to implement the stage of planning strategies in solving mathematical problems.
The effect of immediate feedback on mathematics learning achievement Hadijah Hadijah; Isnarto Isnarto; Walid Walid
Jurnal Pijar Mipa Vol. 17 No. 6 (2022): November 2022
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.v17i6.4172

Abstract

Real facts at school show that the ability to solve problems is still considered low. Most students still make many mistakes in solving math problems. These mistakes must be directed to the right path to minimize repeated mistakes. Immediate feedback can be a solution to correct these errors. The purpose of this study was to examine the immediate feedback by the teacher during learning and their relationship to student learning achievement. The participants in this study consisted of 30 students from seventh grade. Data were collected from the final score on the number of subjects. Data were analyzed using descriptive statistics and paired sample t-tests to describe before dan after giving immediate feedback. Paired sample t-test analysis was also used to describe the relationship between immediate feedback on learning achievement. This study revealed a significant difference between immediate feedback and learning achievement. The final mean value shows the pretest average is higher than the posttest average. There is a positive relationship between immediate feedback and mathematics learning achievement. These findings can be used as a teacher's attention in providing feedback immediately during learning.
The effectivity of problem-based learning assisted by snakes and ladders games on students divergent thinking ability Ghazian Nurin Izzati; Dwijanto Dwijanto; Adi Nur Cahyono
Jurnal Pijar Mipa Vol. 17 No. 6 (2022): November 2022
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.v17i6.4177

Abstract

This study aims to determine the effectiveness of problem-based learning assisted by the game of snakes and ladders on students' divergent thinking skills. The type of research is quasi-experimental, and it was conducted at a public junior high school in Semarang for the 2022/2023 academic year. The sampling technique in this study used purposive sampling, the population in this study was the entire class VIII, and the sample in the study was class VIII F as the experiment class (KF) and class VIII E as the control class (KE). The instrument used was a test result of student learning with five description questions, the hypothesis test used is one sample t-test, independent t-test, and z-test with sig 0.05. Based on the results of the study, it was found that the experimental class learning outcomes were higher than the control class learning outcomes. One sample t-test obtained that t count = 6.045 while t table = 0.683, so that t count > t table, it can be said that KF capability average exceeds 70, independent t-test obtained sig < 0.05 which is 0.001. The average of students with learning model problem-based learning with the help of snakes and ladders game on divergent thinking ability more than the average divergent thinking ability of mathematics. It can be said that 75% of students in the experimental class completed it classically. Learning with problem-based learning assisted by snake and ladder games on the students' divergent thinking skills was effective for the mathematics learning outcomes of class VIII students.
Antioxidant potential of gotu kola leaf extract (Centella asiatica (L.) Urban) as an alternative to antihyperglycemic herbal drinks Ida Ayu Manik Damayanti; Ni Wayan Sukma Antari; Sri Dewi Megayanti
Jurnal Pijar Mipa Vol. 17 No. 6 (2022): November 2022
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.v17i6.4179

Abstract

This study aims to determine the antihyperglycemic potential of Gotu kola leaf extract (Centella asiatica (L.) Urban as an alternative herbal drink in diabetic male white mice. This study was divided into four stages: extracting Gotu kola leaves using 96% ethanol as solvent, phytochemical screening, and testing antihyperglycemic activity. Male white mice were made diabetic by alloxan-induced. Mice were divided into five groups consisting of negative control (Aquadest), positive control (Glibenclamide 13 mg/Kg BW), dose 1 (200 mg Gotu kola extract/kg BW), dose 2 (400 mg Gotu kola extract/kg BW), dose 2 (400 mg Gotu kola extract/kg BW), 3 (600 mg Gotu kola extract/kg BW). The results of phytochemical screening showed that the Gotu kola leaf extract was positive for flavonoids and tannins. The analysis results on the Gotu kola leaf extract showed an IC50 value of 80.58 ppm, including strong antioxidant activity. The results of the antihyperglycemic activity test showed that diabetic male white mice were found to have decreased blood sugar levels on days 14 and 21 by respectively 24.3% and 41.6%; 25.4% and 42.3%; 37.8% and 55.3% after administration of Gotu kola leaf extract at P1, P2, and P3.
Development of android-based learning media applications on elements periodic system topics Anisa Pradila; Fajriah Azra
Jurnal Pijar Mipa Vol. 17 No. 6 (2022): November 2022
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.v17i6.4205

Abstract

This study aims to develop android-based learning media applications and determine the level of validity. This research was designed using the Plomp development model, which consists of 3 stages: the preliminary research stage, the development stage or prototyping, and the assessment stage. In this study, the authors limit the research carried out to the development stage or prototype, which produces prototype III. The development of this android-based application is expected to assist teachers in overcoming obstacles in making learning media and can be used as one of the learning media that can help students in learning, especially on the material of the periodic system of elements. Nine validators carried out the validation test of the learning media application: six content experts (Padang State University lecturers and teachers of SMAN 12 Padang) and three media experts (Lecturer of Engineering Padang State University). The data obtained from the validator was then analyzed using Aiken's V. The product validation test results had an index of 0.877 from content experts and 0.955 from media experts in the valid category. Thus, based on the validation test results, the Android-based learning media application on the developed periodic system material is valid.

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