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All Journal PIONIR: Jurnal Pendidikan BIOTIK: Jurnal Ilmiah Biologi Teknologi dan Kependidikan Jurnal Pendidikan Biologi Indonesia Phenomenon : Jurnal Pendidikan MIPA Al Ishlah Jurnal Pendidikan AKSIOLOGIYA : Jurnal Pengabdian Kepada Masyarakat Jurnal Penelitian Pendidikan IPA (JPPIPA) Jurnal Bioedukatika Biosfer: Jurnal Pendidikan Biologi Jurnal Pengabdian Pada Masyarakat Jurnal Pendidikan Sains Indonesia (Indonesian Journal of Science Education) Bioma : Jurnal Ilmiah Biologi
Bowo Sugiharto
Universitas Sebelas Maret
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Improving Students’ Scientific Writing Skills through Discovery Learning in Science Learning: A Systematic Review Opik Prasetyo; Bowo Sugiharto; Harlita Harlita
Jurnal Penelitian Pendidikan IPA Vol 11 No 5 (2025): May
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v11i5.6789

Abstract

Scientific writing skills are essential for students to express ideas or thoughts in various media such as practicum reports. This skills can be trained through the implementation of learning models that can empower science process skills, namely discovery learning. This study aims to analyse various articles related to the implementation of discovery learning models in science learning to improve students' scientific writing skills. This research is a systematic review with the PRISMA method using the keywords "discovery learning" and "writing skills" during the last 10 years. There are 7 articles via Scopus reviewed from 2013 – 2023. The results of the systematic review analysis showed that the implementation of the discovery learning model in science learning can improve students' scientific writing skills that consist of various aspect and criteria.  Students' learning activities in each syntax of discovery learning are suitable to empower each aspect of this skills. The systematic review of various articles on the implementation of the discovery learning model is expected to be a reference for science teachers, especially in learning biology to improve students' scientific writing skills.
Validity of Science Module Based on Problem Based Learning Multiple Representations to Improve Students' Higher Level Thinking Skills on the Topic of Acid-Base Siti Sholikhah; Sentot Budi Rahardjo; Bowo Sugiharto
Jurnal Penelitian Pendidikan IPA Vol 11 No 4 (2025): April
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v11i4.10837

Abstract

The background of this research is the use of learning resources that have not been effective in improving students' higher-order thinking skills. This study aims to develop a science module, analyze its validity, feasibility, and effectiveness on higher order thinking skills. This research type of research and development (R&D) uses the 4D development model according to Thiagarajan (Define, Design, Develop, Disseminate). The science module was validated by six validators. The effectiveness of the module is seen from the increase in the students' higher order thinking skills test scores from 36 student. Validity was analyzed using Aiken's V, while effectiveness was analyzed with N-Gain. In the validation level, the learning material expert validator obtained a score of 0.91 with the category “valid”, the presentation expert validator obtained a score of 0.88 with the category “valid”, the linguist validation obtained a score of 0.91 with the category “valid”, and the graphic expert validation obtained a score of 0.88 with the category “valid”. A feasibility value of 79.8 by teachers with a feasible category. The effectiveness results show that the module has an effect on students' higher order thinking skills  as evidenced by the N-Gain score of the experimental class of 0,63 with a fairly effective category while the N-Gain score of the control class is 0,55 with a less effective category. Thus, the developed e-module is declared valid, feasible, and effective.
Validity Analysis of Guided Inquiry-based E-Module for Learning Hydrostatic Pressure Siti Muslikatin; Bowo Sugiharto; Meti Indrowati
Jurnal Penelitian Pendidikan IPA Vol 11 No 8 (2025): August
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v11i8.11648

Abstract

This study aims to analyze the level of validity of the guided inquiry-based e-module on the material of liquid pressure as a teaching material that supports the active involvement of students in the learning process. The research method used is the research and development method (R&D) with a development model that refers to the 4D model (Define, Design, Develop, and Disseminate), limited to the development stage. The validity assessment instrument is ini the form of a validation sheet filled out by four experts, consisting of material experts, media experts, and learning experts. The aspects assessed include the appropriateness of the content, language, presentation and graphics. The validation results show that the developed e-module obtained an average score of 91% from media experts, 89% from material experts, 94% from language experts, and 92% from learning experts. Based on the research results of media experts material experts, and learning experts, it can be concluded that the guided inquiry-based e-module with an average rating of 92% is in the “very valid” category, making it suitable for use as a teaching material in science learning, especially on the topic of liquid pressure. These findings indicate that the guided inquiry-based e-module can be an innovative in improving the quality of science learning in junior high schools.
COMPARING CLASSICAL TEST THEORY AND ITEM RESPONSE THEORY FOR RESPIRATORY SYSTEM QUESTION INSTRUMENTS Adha Nisfatulsanah; Bowo Sugiharto
PIONIR: JURNAL PENDIDIKAN Vol. 13 No. 3 (2024): PIONIR: JURNAL PENDIDIKAN
Publisher : Prodi PGMI FTK UIN Ar-Raniry Banda Aceh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22373/pjp.v13i3.25435

Abstract

This study aims to compare the results of instrument testing methods between applying classical test theory and item response theory using the Rasch model in question instruments on respiratory system material. This study employed descriptive quantitative methodology, with a sample involving 36 students. The analyzed instrument consisted of 40 multiple-choice questions on respiratory system material. Instrument analysis utilized classical test theory with Microsoft Excel and item response theory with Winstep Rasch ver 4.5.2.0. The data analysis from classical test theory and item response theory offers slightly different interpretations but is mutually complementary. Both classical test theory and item response theory may assess the validity, reliability, distractor effectiveness, difficulty level, and discriminating power of questions. Item response theory provides a comprehensive analysis of test results through the use of the Wright map as a bar which helps determine a student's ability about the difficulty level of the question. Scalogram is used to identify patterns in students’ responses, allowing for the detection of cheating and inaccuracies in answering questions. Additionally, DIF items are employed to identify item bias. This study concludes that any developed instrument must possess the characteristics that meet the requirements to measure competency effectively. The requirements for an instrument can be analyzed using item response theory with the Rasch model, which provides in-depth interpretation.Keywords: Classical test theory, item response theory, Rasch model, instrument
Teknik Instruksional Concept Map di Tahap Deciding - Project Based Learning terhadap Keterampilan Argumentasi Siswa Rakhmatdi Rakhmatdi; Sri Widoretno; Joko Ariyanto; Bowo Sugiharto; Sri Dwiastuti; Chandra Adi Prabowo
Jurnal Penelitian Pendidikan IPA Vol 9 No 8 (2023): August
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v9i8.3157

Abstract

Argumentation is an assessment that identifies HOTs through collaborative learning activities. Learning that supports collaboration through project design is found in project-based learning at the deciding stage. Decisions in planning investigations tend to be less than optimal and the presentation of data at the deciding stage is incomplete so that it is optimized using the instructional concept map technique. The use of concept maps as an instructional technique guides students to find and relate concepts logically so as to stimulate argumentation skills because it explores critical thinking skills through activities of organizing, categorizing, analyzing, and reasoning. The research aims to analyze differences in students' argumentation skills from the use of concept map instructional techniques at the deciding stage – project-based learning. The research design was quasi-experimental. Determination of the sample using cluster random sampling of 70 students who are determined based on the paired F test. The research instrument consisted of an expert concept map and a matter of argumentation. Data on students' argumentation skills were obtained from an assessment that was arranged according to the argumentation component according to Toulmin (2003) is evidence, warrants, backing, qualifier, rebuttal, and claim a total of 11 questions. The data analysis technique used the t-test. The results of the hypothesis test show that the significance value is 0.001 (<0.05), so there are differences in students' argumentation skills from the use of the instructional concept map technique in the deciding – project-based learning stage. The argumentation skills of the students in the experimental class were better than the control class in argumentation components is evidence, rebuttal, and claim. The concept map instructional technique has aspects that can improve students' argumentation skill scores because it helps students focus on finding and connecting concepts based on evidence and data as a result of investigations
Profil Penjelasan Ilmiah Siswa SMA pada Materi Sistem Peredaran Darah Manusia Lilya Vany Wisma Widiana; Baskoro Adi Prayitno; Bowo Sugiharto
Jurnal Penelitian Pendidikan IPA Vol 10 No 6 (2024): June
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v10i6.7390

Abstract

This study aims to determine the profile of scientific explanation ability of high school students, especially on the material of the human circulatory system. The type of research used is quantitative research with survey methods shared through google forms. The subjects of the study were high school students who had received human circulation system material in one of several schools in Central Java, the research sample was selected through random sampling techniques from the population.  The research instrument used was adapted from McNeill, Lizotte, Krajcik, and Marx (2016) which consisted of 9 long answer questions to be able to determine the success of aspects of claim, evidence, and reasoning in scientific explanation. The instrument has been declared valid and reliable through Rasch Model testing. The research data is in the form of scores from student answers which are then processed through the Rasch Model to determine the level of difficulty and wright map person (students) to find out the profile of each student's scientific explanation ability. The results showed that 78% of students were still at the lower middle level in compiling the three aspects of scientific explanation, and only 12% of students were able to achieve maximum scores in the preparation of claims, evidence, and reasoning.
Development of a Problem-Based Learning Module on Elements, Compounds, and Mixtures to Enhance Eighth-Grade Students’ Critical Thinking Skills Imam Setiawan; Baskoro Adi Prayitno; Bowo Sugiharto
Jurnal Penelitian Pendidikan IPA Vol 12 No 1 (2026)
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v12i1.11451

Abstract

This study aimed to develop and evaluate a Problem-Based Learning (PBL) science module supplemented with Mind Maps on the topic of elements, compounds, and mixtures to enhance the critical thinking skills of eighth-grade students. The research objectives were to: 1) describe the module's characteristics, 2) examine its feasibility, and 3) test its effectiveness. The development followed the Borg and Gall procedure, comprising ten systematic steps. The module's feasibility was assessed using the Aiken’s V validity test, while its impact on critical thinking skills was analyzed using ANCOVA. The results demonstrated that: 1) The developed module possesses distinctive characteristics, integrating PBL with Mind Maps, which promotes active student engagement and provides direct learning experiences to foster critical thinking. 2) The module is highly feasible for classroom use, supported by a strong Aiken’s V validity value of 0.85. 3) The module is statistically effective in improving students' critical thinking skills. This conclusion is substantiated by the ANCOVA test results, which showed a highly significant value of p <0.001, confirming a notable enhancement in critical thinking abilities after the implementation of the module. The study successfully validates the module as a viable and effective learning tool.
SCREENING OF LDPE PLASTIC-WASTE-DEGRADING BACTERIA USING WINOGRADSKY COLUMN Bowo Sugiharto; Alifia Harisma Rustanti
BIOMA : Jurnal Ilmiah Biologi Vol. 15 No. 1 (2026): April 2026
Publisher : Prodi Pendidikan Biologi, FPMIPATI, Universitas PGRI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26877/bioma.v15i1.3201

Abstract

This study aims to screen Low-Density Polyethylene (LDPE)-degrading bacteria from three highly plastic-contaminated environments: the Jatimalang River stream, Bekonang Market soil, and Joho Village Waste Disposal Site. The research used the Winogradsky column method with two incubation periods: 1 month and 2 months. This research was conducted with 3 repetitions using a descriptive-quantitative data analysis approach, and was a preliminary screening. Observed parameters included the percentage of plastic degradation, biofilm thickness, physical changes in LDPE, and bacterial morphology isolated using Nutrient Agar. The results showed that the highest degradation occurred in the waste-disposal soil (TPS), with values of 34.37% (1 month) and 40.62% (2 months), followed by river soil (22.72% and 27.27%) and market soil (13.63% and 18.18%). Biofilm thickness was also most significant in TPS samples, reaching 0.57 ± 0.01 and 0.91 ± 0.03 μm. Physical changes included yellowish to brownish discoloration, increased roughness, and enhanced elasticity of LDPE. All bacterial isolates exhibited irregular colony forms, lobate margins, flat elevations, and cream-to-yellow pigmentation. Gram staining identified all isolates as Gram-positive bacteria. These findings indicate that plastic-contaminated environments hold strong potential as natural sources of LDPE-degrading bacteria.
Co-Authors Adha Nisfatulsanah Alifia Harisma Rustanti Alysa Nur Chasanah Alam Majid Andri Tri Nugroho Ayu Dien Islamiyati Baskoro Adi Prayitno Baskoro Adi Prayitno Baskoro Adi Prayitno Baskoro Adi Prayitno Bhian Ananda Javanica Rubiyanto Candra Adi Prabowo Chandra Adi Prabowo Chandra Adi Prabowo Chandra Adi Prabowo Dwi Oetomo Dwika Sarnia Putri Elma Rosalia Malinda Fajar Nur’aini Feni Andriani Haifa Azizzah Harlita Harlita Ihrom Rosyadi Ihrom Rosyadi Imam Setiawan Joko Ariyanto Joko Ariyanto Jonanda Fattah Anugerah Kistantia Elok Mumpuni Kistantia Elok Mumpuni Lilya Vany Wisma Widiana Lilya Vany Wisma Widiana Maretania Arafa Maretania Arafah Maulidya Dwi Anggini Maulika Junia Mustika Rani Mega Safrina Meti Indrowati Murni Ramli Murni Ramli Murni Ramli Nira Luthfiana Prima Nur Rochmah Candra Padmi Nuri Isnaini Nurul Alifah Nurul Hidayati Opik Prasetyo Pradita Anggun Ciptaningrum Puguh Karyanto Puguh Karyanto Rahmat Evendi Rahmat Evendi Rakhmatdi Rakhmatdi Ratna Rahayu Rezqi Rohmatika Sari Rizki Putri Puspitasari Safila Safinatunnajah Auliananda Sentot Budi Rahardjo Siti Muslikatin Siti Sholikhah Sri Dwiastuti Sri Dwiastuti Sri Dwiastuti Sri Widoretno Sri Widoretno Sri Widoretno Sunarni Sunarni Tanti Priyani Tasya Umi Pertiwi Yeni Puspitasari Zahra Fathya Chaerunisa Zul Afifa Yunitadewi Basuki