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Dea Santika Rahayu
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INDONESIA
Indonesian Journal of Science and Education
Published by Universitas Tidar
ISSN : 25985213     EISSN : 25985205     DOI : https://doi.org/10.31002/ijose
Core Subject : Science,
Biochemistry, Genetics & Molecular Biology Chemistry Materials Science & Nanotechnology Physics
Indonesian Journal of Science and Education published a scientific paper on the results of the study and review of the literature in the science and education. In detail, the scopes of this journal are research in 1) Science education; 2) Biology education; 3) Physics education; 4) Chemistry education; 5) Science Educational Technology; 6) Environmental science; 7) Physics; 8) Chemistry; and 9) Biology.
Arjuna Subject : Umum - Umum
Articles 94 Documents
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Critical Thinking Skills Through Integration of Problem-Based Learning with Inquiry in Science Learning Safitri, Dian; Rukman, Wira Yustika; Nurul Magfirah; Bachtiar, Suhaedir
Indonesian Journal of Science and Education Vol. 6 No. 1 (2022): Indonesian Journal of Science and Education
Publisher : Universitas Tidar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31002/ijose.v6i1.79

Abstract

This study aims to determine students' critical thinking skills through an inquiry learning model with problem based learning. This research is classroom action research. The subjects of the study were all class VIII students of SMP Negeri 2 Rumbia, totaling 2 groups with 15 students in one group in accordance with the limited face-to-face learning rules in the era of the covid 19 pandemic. The test instrument used was in the form of open questions (essay form) according to the grid. test. Critical thinking skills that are measured are identifying and formulating problems, giving arguments, making deductions, conducting inductions, evaluating, and deciding and carrying out actions. The results showed that the Problem Based Learning learning model with Inquiry was effectively used to improve students' critical thinking skills. Students' critical thinking skills have increased from cycle 1 to cycle 2 with an average pretest score of 50.25, while the posttest average score is 87.48. There was a significant increase in students' critical thinking skills in cycle 2 who were taught using the Problem Based Learning learning model with Inquiry, namely 37, 23
Energy Storage System Based on Ceremai Fruit Paste as Alternative Energy Source Lalu Didik
Indonesian Journal of Science and Education Vol. 6 No. 2 (2022): Indonesian Journal of Science and Education
Publisher : Universitas Tidar

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Abstract

This study aims to analyze the paste of ceremai fruit (Phyllanthus acidus) as a battery electrolyte replacing Manganese dioxide as an alternative energy source. The material used is battery that has carbon (C) and zinc (Zn) electrodes. Battery electrolyte derived from MnO2 was replaced with electrolyte from ceremai fruit paste. The variables measured were electric voltage, electric current and electric power. Based on the results of research and data analysis, the electrolytes from ceremai fruit paste can be used to replace the MnO2 electrolyte which is usually used as a battery electrolyte as an alternative energy source. Although the output voltage is lower. This can be overcome by assembling the bio-battery through a series circuit. The series of 11 bio-batteries circuit can light 6 volt lamp brightly because it can produce a voltage of 6.79 volts. The existence of a load on the lamp can be decreasing in source voltage. The decrease in source voltage followed by an increase in the value of the electric current.
Development of E-LKS (Electronic Student Worksheets) Contain Hots (Higher Order Thinking Skills) Students in Science Learning Fajarianigtyas, Dyah Ayu; Safin, Rievka Aprilina; Hidayat, Jefri Nur
Indonesian Journal of Science and Education Vol. 7 No. 2 (2023): Indonesian Journal of Science and Education
Publisher : Universitas Tidar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31002/ijose.v7i2.83

Abstract

Worksheet is one of the learning tools that plays an important role in students' thinking processes. The thinking process in achieving 21st century skills is that students can have higher order thinking skills (HOTS). The objectives of this research are: (1) How do teachers and students respond to the development of E-LKS which includes students' HOTS in science learning?, and (2) How to increase students' HOTS in using E-LKS in science learning? learning?. The research subjects were students of class VIII SMPN 4 Sumenep. This study uses the Research and Development approach and the four-dimensional research and development model by Thiagarajan. Our E-LKS validity data is obtained from Content Validity Index (CVI) analysis. Teacher and student response data were obtained by using response questionnaire analysis. Data on increasing HOTS in the use of E-LKS used pretest and posttest techniques with n-gain analysis. The results showed that the validity of the E-LKS on light materials and optical instruments class VIII was declared valid with a CVI score of 1.00 (very high validity) in terms of material and language aspects as well as media aspects. The results of teacher and student responses are in the positive category. The teacher's response to the E-LKS contains HOTS which is 96.97%, while the student response to the E-LKS contains HOTS which is 92.72% with the "achieved" category. In increasing HOTS students who use the E-LKS are included in the effective category on the results of the analysis with an n-gain score of 0.72. This shows that the E-LKS is easy to understand and effectively used by students and teachers during distance learning.
Hybrid Project-based Instructional Model: Fostering Critical Thinking Skills and Creative Thinking Skills Eli Trisnowati
Indonesian Journal of Science and Education Vol. 6 No. 1 (2022): Indonesian Journal of Science and Education
Publisher : Universitas Tidar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31002/ijose.v6i1.92

Abstract

Project-based learning is a learning approach that emphasizes students as learning actors who facilitate students to construct their knowledge. However, the application of project-based learning to learning at the tertiary level is a learning syntax that has not been designed by adjusting the characteristics of learning for the tertiary level. This study aims to analyze the effectiveness of case study-based learning conducted using a hybrid project-based learning model in improving students' critical thinking and creative thinking skills. This study used a non-equivalent control group research design with 70 samples divided into the experimental and control groups. The instruments used are standard critical thinking skills tests, namely Cornell Critical Thinking Test (CCTT) level X, creative thinking skills test instruments, and observation sheets. The results showed that hybrid project-based learning effectively improved students' critical and creative thinking skills. The increase in students' critical thinking skills is higher than students' creative thinking skills.
Neuroscience Approach in The Industrial Revolution 4.0 Nuryunita Dewantari; Suwito Singgih
Indonesian Journal of Science and Education Vol. 6 No. 1 (2022): Indonesian Journal of Science and Education
Publisher : Universitas Tidar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31002/ijose.v6i1.124

Abstract

Industrial revolution 4.0 is related to the rapid progress of technology in the world. In short, the industrial revolution 4.0 is a digital transformation. In the face of the era of industrial revolution 4.0 as it is today, a neuroscience approach to the practical management of education is needed. The application of neuroscience can form synergy and engagement with high added value. This study provides an overview of the role of neuroscience approaches in the era of industrial revolution 4.0. The research method used in this study is a literature study. Based on the results of the research study shows that the neuroscience approach can maximize the theatre of the student's brain, which consists of emotional, social, cognitive, physical, and reflection aspects.
The Effectiveness of Sargassum sp as Liquid Organic Fertilizer in Increasing The Growth of Red Chillies Yusnaeni; Nikmah; Maryanto C. Honin; Dionisius Bako
Indonesian Journal of Science and Education Vol. 6 No. 1 (2022): Indonesian Journal of Science and Education
Publisher : Universitas Tidar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31002/ijose.v6i1.129

Abstract

This study aims to determine the effect of the most effective volume of watering for Sargassum sp liquid organic fertilizer on the growth of red chili plants. The study was an experimental study using a completely randomized design with 5 treatments of watering volume of Sargassum sp liquid organic fertilizer, namely 0 mL (control), 50 mL, 100 mL, 150 mL, and 200 mL. Each treatment was repeated 4 times. The variables measured were plant height, number of leaves, and number of branches. Observational data were analyzed using analysis of variance and further tested by BNT. The results of the analysis of variance showed that the organic fertilizer treatment of Sargassum sp. very significant effect on the variables of plant height, number of leaves, and number of branches, where each variable shows the value of Fcount > Ftable. Further test results showed that the best treatment was Sargassum sp treatment with a watering volume of 200 mL/polybag.
The Effect of Socio-Scientific Issue (SSI) Science Learning Based on The Decision Making Skills of Eight Grade Junior High School Student: PENGARUH PEMBELAJARAN IPA BERBASIS SOCIO-SCIENTIFIC ISSUE (SSI) TERHADAP KETERAMPILAN PENGAMBILAN KEPUTUSAN SISWA SMP KELAS VIII Narulita, Erlia
Indonesian Journal of Science and Education Vol. 6 No. 2 (2022): Indonesian Journal of Science and Education
Publisher : Universitas Tidar

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Abstract

Decision-making skills are an activity to make the best decision from several alternative solutions offered with certain considerations. This study aims to examine the effect of Socio-Scientific Issue (SSI)-based science learning on the decision-making skilss of class VIII Junior High School students. The research method used is a quasy experiment with a non-equivalent control group design. The population in this study was class VIII SMP Negeri 7 Jember in the academic year 2021/2022. The selection of research samples using purposive sampling technique obtained class VIII B as the control class and class VIII E as the experimental class. The results of the analysis used the Independent Sample T-test with a significance value og 0.041 < 0.05. In addition, based on the N-Gain test in the control class the average N-Gain is 0.4233 with moderate criteria in the less effective category, while the average N-Gain in the experimental class is 0.5568 with moderate criteria being quite effective. Based on the results of the study, it can be concluded that there is a significant effect on Socio-Scientific Issue (SSI)-based science learning on the decision-making skills of class VIII Junior High School students. Analysis with the N-Gain test shows that SSI-based science learning is included in the category of being quite effective in learning with a precentation of 56 percent. Keywords: Science Learning, Socio-Scientific Issue, Decision-making Skills
Development of Comic-based Worksheet to Improve Learning Motivation and Critical Thinking Nadia Kusuma Ningrum; Ning Setiati; Bambang Subali
Indonesian Journal of Science and Education Vol. 6 No. 2 (2022): Indonesian Journal of Science and Education
Publisher : Universitas Tidar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31002/ijose.v6i2.187

Abstract

Penelitian ini bertujuan untuk mendeskripsikan karakteristik LKPD, menguji kelayakan LKPD, menguji efektivitas LKPD terhadap minat belajar, menguji efektifitas LKPD terhadap berpikir kritis dan menguji respon siswa terhadap LKPD. Metode yang digunakan adalah Research and Development dengan model pengembangan 4D. Teknik pengumpulan data yang digunakan adalah tes, observasi, wawancara, dokumentasi, dan angket. Uji karakteristik LKPD diperoleh dari teori Sastrawan & Yenti (2020) dan kritik serta saran para ahli, uji kelayakan diperoleh dari angket ahli, uji minat belajar siswa diperoleh dari angket, uji berpikir kritis diperoleh dari hasil pre-test dan post-test, sedangkan respon siswa diperoleh dari angket respon siswa. Hasil penilaian dari ahli media sebesar 86% dengan kriteria sangat layak, ahli materi sebesar 88% dengan kategori sangat layak dan guru IPA sebesar 91% dengan kategori sangat layak digunakan. Berdasarkan hasil minat belajar kelas kontrol sebesar 75% dan kelas eksperimen sebesar 86,41% yang menunjukkan kategori sangat tinggi. Keterampilan berpikir kritis diperoleh nilai sig. (2-tailed) sebesar 0,000. Karena nilai sig. (2-tailed) sebesar 0,000 dimana < 0,05, dan uji N-gain terdapat perbedaan yaitu pada kelas eksperimen lebih tinggi daripada kelas kontrol. Hasil dari angket respon siswa rata-rata sebesar 93% dengan kategori sangat baik. Berdasarkan hasil penelitian dapat disimpulkan bahwa pengembangan LKPD yang dilengkapi komik dikategorikan layak dan efektif terhadap minat belajar dan berpikir kritis siswa.
Relationship Between Environmental Literacy With Self Efficacy in Biology Learning Class High School: Hubungan Literasi Lingkungan dengan Self Efficacy pada Pembelajaran Biologi kelas X SMA Yakuti, YaKuti Afifah
Indonesian Journal of Science and Education Vol. 6 No. 2 (2022): Indonesian Journal of Science and Education
Publisher : Universitas Tidar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31002/ijose.v7i1.204

Abstract

In the era of the industrial revolution 4.0, technology is developing more rapidly, which cannot avoid large energy needs. Using large amounts of energy results in exploiting energy sources and causes environmental damage. Implementing environmental education is one of the efforts to prevent environmental damage by fostering environmental literacy. Self-efficacy beliefs are important for students to deal with situations or problems. This type of research is quantitative correlation using Pearson Product Moment (PPM) correlation data analysis. This study explains the relationship between environmental literacy and self-efficacy in learning biology class X SMA. The sampling technique in this study is simple random sampling. The total sample size is 180 students of class X MIPA at SMA Negeri 14 Semarang. The results of the calculation of the Pearson Product Moment (PPM) correlation analysis using the IBM SPSS 22 application for windows obtained a count = 0.331 and the value of Sig. = 0.007. Value of Sig. Obtained <0.05, so Ha accepted that there is a relationship between environmental literacy and self-efficacy in learning biology class X SMA.
Gas Chromatography Mass Spectroscopy (GCMS) Qualitative Analysis for Morphine, Heroin and Codeine used in Doping Haerussana, Ayu Nala El Muna; Mimin Kusmiyati; Irvan Herdiana
Indonesian Journal of Science and Education Vol. 7 No. 1 (2023): Indonesian Journal of Science and Education
Publisher : Universitas Tidar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31002/ijose.v7i1.207

Abstract

Three types of doping drugs, morphine, heroin, and codeine were analyzed qualitatively in urine using GCMS: HP5MS column containing a nonpolar substance, phenylmethyl siloxane, with a temperature range of 90-250ºC and a rate of increase of 10ºC/minute. Diethyl ether was used to extract morphine, codeine, and heroin. The extractions were performed at pH 8, the organic phase was evaporated, followed by derivatization. Morphine and its derivatives were treated with a solution of N-methyl-N-trimethylsilyl-trifluoroacetamide and N-methyl-bis-trifluoroacetamide. The results of the gas chromatographic analysis showed that the retention times of morphine, heroin, and codeine the retention times were 8.01, 7.32, 6.21 minutes, while those of their derivatives were 8.10, 8.10, 7.95 minutes respectively. The identification of each drug using mass spectrometry revealed that their mass spectra were identical to the standard. The mass spectra of the derivatives: morphine-TMS and codeine-TMS showed a resemblance index of 93% respectively compound to the standard, with a detection limit of 2 ug/ml.

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