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INDONESIA
PENA SAINS
Published by Universitas Trunojoyo Madura
ISSN : 24072311     EISSN : 25277634     DOI : -
Core Subject : Science, Education, Agriculture,
Agriculture, Biological Sciences & Forestry Chemistry Mathematics Physics
Jurnal Pena Sains (p-ISSN: 2407-2311) (e-ISSN: 2527-7634) is published by Natural Science Education Study Program, University of Trunojoyo Madura as a medium to improve the creativity of lecturer, academics, practitioners, researchers, relating to the science education and science. The journal is published twice a year in April and October. Jurnal Pena Sains in collaboration with the Perkumpulan Pendidik IPA Indonesia (PPII).
Arjuna Subject : -
Articles 171 Documents
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ANALYSIS OF STUDENTS’ THINKING SKILLS IN BIOLOGY LEARNING: STUDY AT A SCHOOL IN PADANG, INDONESIA Rosalia, Restia; Amri, Erismar; Maharani, Ade Dewi
JURNAL PENA SAINS Vol 11, No 2 (2024): Jurnal Pena Sains
Publisher : Program Studi Pendidikan IPA, Fakultas Ilmu Pendidikan, Universitas Trunojoyo Madura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/jps.v11i2.26386

Abstract

There are several skills used to face the challenges of 21st century development which are abbreviated as 4C, namely critical thinking, collaboration, creativity and communication skills. The concept of 21st century learning, in its development, provides global challenges to the current generation that is developing and this needs to be considered. However, those 21st century skills have not been fully implemented in the learning process, especially in the senior high schools in Padang. The purpose of this study was to determine the 21st Century Skills of Class XII MIPA Students in Biology Learning at Adabiah Padang Private High School. This type of research is descriptive research. The population was all class XII MIPA students at Adabiah Padang Private High School totaling 162 students. The sample taken was 40 students using random sampling technique. The instrument used in collecting data in this study was a test in the form of multiple-choice objectives totaling 17 questions to assess critical thinking skills and observation sheets for creativity, collaboration and communication. The questions used in this study were questions that had been tested for validity and reliability. The results showed that the value of 21st century skills of class XII MIPA students at Adabiah Padang Private High School was 69.57 with high criteria. In detail, students' 21st century skills in critical thinking skills, creativity, collaboration and communication were respectively 73.21; 65.10; 69.64 and 70.31 with high criteria. Therefore, it can be concluded that students' 21st Century skills in biology learning at Adabiah Padang Private High School with high criteria.
METHANOL EXTRACT PROFILE OF Eucheuma cottonii AS AN ANTIMALARIAL CANDIDATE Setyaningrum, Endah; Farisi, Salman; Sari, Galuh Retno; Arifiyanto, Achmad
JURNAL PENA SAINS Vol 11, No 2 (2024): Jurnal Pena Sains
Publisher : Program Studi Pendidikan IPA, Fakultas Ilmu Pendidikan, Universitas Trunojoyo Madura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/jps.v11i2.25437

Abstract

Malaria is a tropical disease that endangers public health which is caused by the plasmodium parasite, and transmitted through the bite of a female Anopheles sp. mosquito. Malaria is a major health problem in Indonesia due to its high risk of transmission and drug resistance. This encourages a study to look for other antimalarial alternatives by utilizing natural ingredients. The purpose of this study is to identify the functional groups found in Eucheuma cottonii secondary metabolites using methanol 70% as the solvent. This study is included in the experimental research. The functional group of methanol extract of Eucheuma cottonii was evaluated using Fourier Transform Infrared (FT-IR) Nicolet iS 10 spectrometers. The FT-IR analysis identified the O-H functional group at 3347.1 cm-1, C≡C at 2094.8 cm-1, C=C at 1632.6 cm-1, phenol or O-H bend at 1401.5 cm-1, aromatic C-O at 1192.7 cm-1, and a C-C group at 1043.7 cm-1. The results of phytochemical analysis on Eucheuma cottoni revealed the presence of saponins. The functional groups formed in the 70% methanol extract of Eucheuma cottonii seaweed are the O-H, C≡C, C=C, phenol or O-H bend, aromatic C-O, and C-C groups which are flavonoid compounds in the flavanone group which have the potential to be antimalarial. Furthermore, the presence of the O-H, C=O, C-O, C=C, or C-H functional groups is a characteristic of a flavonoid compound. Therefore, it can be concluded that the identified functional groups indicate the existence of flavonoid molecules from the flavanone group, which potential as antimalarial properties.
COMPARATIVE STUDY OF INTEREST IN READING INTEGRATED SCIENCE BOOKS AND LOCAL WISDOM-BASED LEAFLET MEDIA Fausan, Sultan Ahmad; Arham, Zul; ., Ismaun
JURNAL PENA SAINS Vol 11, No 2 (2024): Jurnal Pena Sains
Publisher : Program Studi Pendidikan IPA, Fakultas Ilmu Pendidikan, Universitas Trunojoyo Madura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/jps.v11i2.26413

Abstract

Reading is an activity of examining the meaning or essence of a reading with the aim of developing one’s knowledge and potential. Along with the development of times and technology and with advances in this digitalization era, there is a fairly common problem, namely the decline in the percentage of interest in reading. Especially in Indonesia, the number of interest in reading is quite low. This research aims to find out: 1) Students' reading interest in science books 2) Students' reading interest in leaflet media with the theme of local wisdom of the Tolaki tribe, 3) The difference in students' reading interest in science books and leaflet media with the theme of local wisdom of the Tolaki tribe. The sample used was 72 students. Data collection was carried out by means of observation, documentation, and questionnaires. Quantitative research approach with comparative research type. The results showed: 1) Students' reading interest in science books is in the high category with an average reading interest of 58.86. 2) Students' reading interest in leaflet media with the theme of local wisdom of the Tolaki tribe is in the high category with an average reading interest of 85.19 3) There is a significant difference between students' reading interest in science books and students' reading interest in leaflet media with the theme of local wisdom of the Tolaki tribe with a comparison of the average interest in reading science books (58.86) and leaflet media with the theme of local wisdom of the Tolaki tribe (85.19). To conclude, there is a significant difference between students' reading interest in Integrated Science books and students' reading interest in leaflet media with the theme of local wisdom of the Tolaki tribe in class VIII students of SMPN 1 South Konawe.
IMPLEMENTATION OF PROBLEM-BASED SCIENCE LEARNING ON GAUGING STUDENTS’ LEARNING INDEPENDENT SKILL Zahro', Erika Salsabila; Sulistiana, Devita Sulistiana; Rosyida, Desi Anindia
JURNAL PENA SAINS Vol 12, No 2 (2025): Jurnal Pena Sains
Publisher : Program Studi Pendidikan IPA, Fakultas Ilmu Pendidikan, Universitas Trunojoyo Madura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/jps.v12i2.31658

Abstract

This study aims to determine the implementation of problem-based science learning on the learning independence of fourth-grade students and for student learning independence after the implementation of problem-based science learning. This study used a descriptive qualitative method, with the research subjects being fourth-grade teachers, the principal, and fourth-grade students consisting of 19 students. The research data were generated from interviews, observations, questionnaires, documentation, and were analyzed using the Miles and Huberman analysis model. The results showed that the implementation of problem-based science learning in grade 4 students of SDN Tembalang runs effectively. This is based on the results of observations of teacher activities getting a percentage of 96.87% and student activities getting a percentage of 92.5%. Student independence after the implementation of the problem-based science learning method shows very independent criteria with a percentage of 86% of students being responsible, 75% being active and creative in learning, 78% being able to solve learning problems, and 61% being continuous in learning. This is in accordance with the questionnaire data that shows the percentage of each learning aspect, including the responsibility aspect getting a percentage of 91.75%, active involvement in learning 92.98%, problem-solving ability 89.82%, and learning continuity, 92.98%.
THE IMPACT OF DIFFERENT LEARNING MODELS ON THE RETENTION OF MULTI-ETHNIC STUDENTS IN TERNATE JUNIOR HIGH SCHOOLS Ermin, Ermin
JURNAL PENA SAINS Vol 12, No 2 (2025): Jurnal Pena Sains
Publisher : Program Studi Pendidikan IPA, Fakultas Ilmu Pendidikan, Universitas Trunojoyo Madura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/jps.v12i2.32194

Abstract

The background of this research departs from the ethnic diversity of students in Ternate which has the potential to affect student retention. This research aims to assess the impact of various learning models on the retention of multiethnic students in Ternate City Junior High School. This type of research  is a quasi experiment. The design used in this study is the Pretest-Posttest Nonequivalent Control Group Design. The total sample of 76 students consisted of 20 ethnic Ternate, 27 Makian, and 29 Tidore ethnicities. The Research Instrument consists of observation sheets and test questions. The data collection technique consists of (pretest) and (posttest). Data analysis used descriptive statistics to show the description of student retention. The analysis was continued using covariance analysis (ANACOVA). The results of the follow-up test showed that the retention of students in the STAD learning model group combined with NHT was not significantly different from the STAD model, however, it was significantly different from conventional learning. Ethnicity has a significant effect on the retention of multiethnic students. The retention of Ternate ethnic students is not significantly different from the Tidore ethnicity but is significantly different from the Makian ethnicity. The interaction of learning models and ethnicity has a significant effect on student retention. The STAD model combined with NHT has not been able to make a significant contribution to the retention of Ternate, Makian and Tidore ethnic students, but when viewed from the corrected average score of STAD combined with NHT ethnic Ternate, Makian and Tidore have the highest score when compared to other learning models.
EVALUATION OF BIOPLASTIC FROM BANANA PEELS: A SYSTEMATIC LITERATURE REVIEW Muliawati, Eka Cahya; Rahmadi, Dwiky Ari; Sari, David Yuliana; Aminnullah, Wahyu Wibisono Nur; Kurniawan, Haris Fajar; Lestari, Adinda Jamilatul; Alfandi, Ivan Maulana
JURNAL PENA SAINS Vol 12, No 2 (2025): Jurnal Pena Sains
Publisher : Program Studi Pendidikan IPA, Fakultas Ilmu Pendidikan, Universitas Trunojoyo Madura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/jps.v12i2.28881

Abstract

Bioplastics based on natural materials offer an innovative solution to reduce the negative impact of conventional plastics on the environment. This study evaluated bioplastics made from banana peels processed with various plasticizers, such as glycerol, chitosan, sorbitol, polylactic acid polymer, sodium metabisulfite, and tapioca starch. The focus was on mechanical properties, such as biodegradability, tensile strength, and elongation. Banana peels, with a starch content of 59%, proved ideal for bioplastics, with a degradation time of 4–84 days in soil. Bioplastics with 2% glycerol degraded in 4 days, while those with sodium metabisulfite degraded in 84 days. Glycerol increased flexibility but decreased tensile strength. The combination of 1.5% glycerol and tapioca starch produced the highest tensile strength of 66.39 MPa, while the highest elongation was 115.43% with 2% glycerol. This study highlights the potential of banana peel bioplastic as an environmentally friendly alternative, and further research is recommended to optimize the combination of plasticizers to make the bioplastic stronger, more elastic, and antibacterial by combining glycerol, sodium metabisulfite, and tapioca starch. These findings are important for the future development of sustainable and applicable bioplastics.
ANALYSIS OF STUDENT RESPONSES TOWARDS THE IMPLEMENTATION OF STEM-BASED COOPERATIVE LEARNING IN SCIENCE EDUCATION Pratiwi, Dwi Setyo; Salam, Ahmad Abdun
JURNAL PENA SAINS Vol 12, No 2 (2025): Jurnal Pena Sains
Publisher : Program Studi Pendidikan IPA, Fakultas Ilmu Pendidikan, Universitas Trunojoyo Madura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/jps.v12i2.31844

Abstract

The development of 21st-century skills such as critical thinking, collaboration, and problem-solving requires innovative learning approaches. STEM education, integrated with cooperative learning, is considered an effective strategy to enhance student engagement and understanding in science education. This study aims to analyze student responses to the implementation of STEM-based cooperative learning in science education. The research employed a descriptive quantitative approach using a survey method. A total of 31 junior high school students participated by completing a Likert-scale questionnaire consisting of ten statements. The results showed that students responded very positively, with an average score of 81.21%. The findings indicate that this learning approach enhances students' confidence in asking questions and expressing opinions, minimizes boredom, facilitates problem-solving, and improves understanding of the material. It is concluded that STEM-based cooperative learning is an effective and engaging strategy for science education. Further research is recommended to explore its long-term impact on academic achievement and to apply the approach across different subjects and educational levels.
GREEN CHEMISTRY PRACTICAL GUIDE INTEGRATING THE CONCEPTS OF SCIENCE LITERACY AND ENVIRONMENTAL AWARENESS Pratika, Vindhy Dian; Permatasari, Faudina; Gintano, Pharaye
JURNAL PENA SAINS Vol 12, No 2 (2025): Jurnal Pena Sains
Publisher : Program Studi Pendidikan IPA, Fakultas Ilmu Pendidikan, Universitas Trunojoyo Madura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/jps.v12i2.32004

Abstract

Science education at the elementary school level has an important role in forming the basis of scientific knowledge while fostering character values, including environmental awareness. The background of this research is based on the need for science learning that not only emphasizes cognitive aspects, but also forms an environmentally conscious character from an early age. This research aims to develop a practical guide and see the feasibility of the guide with the theme of Green Chemistry that integrates the concept of scientific literacy and environmental awareness, which is intended for fifth grade elementary school students. The research method used is research and development (RD) with the 4D development model (Define, Design, Develop, and Disseminate). The results of the study indicate that the development of a Green Chemistry practical guide that integrates scientific literacy and environmental awareness is declared very feasible to be developed. The results of the development of the practical guide from the validation results of material experts showed that 87% were declared very feasible, the results of the validation results of media experts produced a feasibility percentage of 84% in the very feasible category, and the results of the practicality of the readability by students of the practical guide showed an average result of 82.40% which stated very feasible. Thus, this practical guide can be used by teachers and students as a source of independent learning that can increase environmental awareness.
IMPROVING STUDENTS’ LEARNING OUTCOMES THROUGH IMPLEMENTATION OF PROJECT-BASED LEARNING INTEGRATED WITH LOCAL WISDOM Kusumawati, Sri Bintang; Ratnasari, Yuni; Amaliyah, Fitriyah
JURNAL PENA SAINS Vol 12, No 2 (2025): Jurnal Pena Sains
Publisher : Program Studi Pendidikan IPA, Fakultas Ilmu Pendidikan, Universitas Trunojoyo Madura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/jps.v12i2.31173

Abstract

The success of achieving learning objectives is seen from student learning outcomes, seen from the knowledge aspect for the elements of the concept of science, and science, as well as attitudes and skills based on the elements of science and science process skills. Teachers who are less creative and innovative in implementing learning models that are suitable for students will affect student learning outcomes. This causes a monotonous, boring, and uninteresting learning atmosphere for students, so that students' science learning outcomes are still relatively low from the predetermined KKTP value. In addition, in this era of increasingly rapid technology and globalization, it can cause a shift in culture and local wisdom for the younger generation. Therefore, this study aims to determine the increase in science learning outcomes by using the Project-Based Learning model containing local wisdom at SD N Ngepungrojo 01 Pati. The Project-Based Learning model, containing local wisdom, is a learning model that uses projects by integrating local wisdom. The stages of the Project-Based Learning model are divided into six stages. The research method that will be used in this study is pre-experimental with a one-group pretest-posttest design. Data analysis techniques consist of initial data analysis using validity tests and normality tests, and research data analysis using the Paired Sample T-Test and N-Gain test.
BIODEGRADABLE PLASTIC FROM CASSAVA STARCH: A LITERATURE ANALYSIS Wibowo, Sonia Linda; Muliawati, Eka Cahya; Putri, Amalia Zamzabila; Anggraini, Azizah Dwi; Febrianto, Mochamad Hasan; Putra, Rafif Baskara; Amaliyah, Qori'atul
JURNAL PENA SAINS Vol 12, No 2 (2025): Jurnal Pena Sains
Publisher : Program Studi Pendidikan IPA, Fakultas Ilmu Pendidikan, Universitas Trunojoyo Madura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/jps.v12i2.28944

Abstract

Plastic is a synthetic polymer derived from petroleum and contains hazardous additives, such as heavy metals and chlorine. The use of cassava starch as the main ingredient in bioplastics, a natural polymer, can be an environmentally friendly and biodegradable solution. However, cassava starch has limitations, such as its hydrophilic nature, poor mechanical strength, and poor stability. To address these issues, plasticizers such as glycerol and sorbitol are used to improve tensile strength, flexibility, and moisture resistance. Meanwhile, the addition of fillers can increase tensile strength, thermal resistance, and reduce hydrophilic properties, thereby improving the stability of bioplastics. Therefore, this review of biodegradable plastic research focuses on the use of cassava starch with the addition of various fillers that can be degraded by various processing techniques. To analyze the quality of these plastics, various testing methods are carried out, including physical, mechanical, thermal, and biodegradability tests, as well as structural and morphological analysis. The results of this research provide innovations that can be developed by making biodegradable plastic from cassava starch by combining a mixture of cassava starch with the addition of PLLA and CMC fillers and acetic acid as well as the addition of a combination of glycerol and sorbitol plasticizers.

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