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All Journal Jurnal Penelitian Pendidikan Matematika dan Sains Matematika dan Sains Jurnal Pendidikan dan Pembelajaran Kimia (JPPK) J-PEK (JURNAL PEMBELAJARAN KIMIA) Jurnal Penelitian Pendidikan IPA (JPPIPA) IJCER (International Journal of Chemistry Education Research) PENDIPA Journal of Science Education JCER (Journal of Chemistry Education Research) Jurnal Eduscience (JES) Abdi: Jurnal Pengabdian dan Pemberdayaan Masyarakat Chemistry Education Practice JPPIPA (Jurnal Penelitian Pendidikan IPA) Jurnal Abdi: Media Pengabdian Kepada Masyarakat Edunesia : jurnal Ilmiah Pendidikan Jurnal Inovasi Pembelajaran Kimia (Journal Of Innovation in Chemistry Education) Hydrogen: Jurnal Kependidikan Kimia Jurnal Pijar MIPA UNESA Journal of Chemical Education Asian Journal of Science Education
Bertha Yonata
Universitas Negeri Surabaya
Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Decision Sciences, Operations Research & Management Education Environmental Science Health Professions Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mathematics Medicine & Pharmacology Physics Public Health Social Sciences Other

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Feasibility of Worksheet Based on PBL to Improve Students Critical Thinking Skills on Acid-Base Material Putri, Alifiyah; Yonata, Bertha
Asian Journal of Science Education Vol 6, No 2: October, 2024
Publisher : Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24815/ajse.v6i2.41537

Abstract

Critical thinking skills are important for students to improve in facing the challenges of the 21st century. One of the way to improve critical thingking skills is by using relevant learning media, namely worksheet based on problem based learning (PBL) model. The purpose of this research is to obtain a worksheet based on PBL to improve students' critical thinking skills on acid-base material. The feasibility of the worksheet is reviewed from the aspects of validity, practicality and effectiveness. This type of research is research and development (RD) with Thiagarajans 4D development model. In this research was only carried out to the development stage with limited trials on 15 students of SMAN 7 Surabaya. The results showed that the worksheet was declared valid in terms of the mode score of content validity of 5 with a very valid category, and construct validity of 4 with a valid category. The practicality of worksheet is reviewed from the results of the student response questionnaire, namely that students respond positively to the use of worksheet based on PBL to improve critical thinking skills and is supported by the results of observing that students' relevant activities are greater than irrelevant activities. The effectiveness of the LKPD is reviewed from the results of the critical thinking skills posttest in the aspects interpretation 92%, explanation 72%, analysis 93%, and inference 83%. Meanwhile, for the N-Gain results from the pretest and posttest of critical thinking skill, obtain a score of 0.3 with moderate and high categories. And supported by the results of knowledge tests where all students have achieved individual mastery with a score of 75. Based on these results, it can be concluded that LKPD based on PBL to improve students' critical thinking skills on acid and base material is feasible to use
Development of Buffer Solution Worksheet Based on Discovery Learning to Improve Students' Critical Thinking Skills Lathifa, Azzahra Ghina; Yonata, Bertha
Asian Journal of Science Education Vol 6, No 2: October, 2024
Publisher : Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24815/ajse.v6i2.41536

Abstract

One of the essential 21st-century skills for students is critical thinking. However, students' critical thinking skills in buffer solution material are relatively low, so appropriate learning models and teaching materials are needed. This research aims to develop worksheet based on discovery learning to improve students' critical thinking skills on buffer solution material, reviewed from validity, practicality, and effectiveness. The method used in this research is Research and Development (RD) with the 4D development model by Thiagarajan, but this research is limited to the development stage. A limited trial was conducted with 15 students from one of the high schools in Surabaya in June 2024. The results showed that the worksheet is declared valid, with a median score of 4 in the valid category. The practicality of the worksheet is stated to be practical in terms of the results of the response questionnaire, namely that students gave positive responses to the worksheet developed and supported by observations of student activities where relevant student activities exceeded irrelevant activities. The worksheet effectiveness is declared effective in terms of the results of students' critical thinking skills tests which had increased with N-Gain scores in the range of 0.64 to 1.00 in the medium to high category and supported by students' knowledge learning outcomes reaching individual completeness, namely 75. Based on these results, it can be concluded that buffer solution worksheet based on discovery learning is feasible for improving students' critical thinking skills in buffer solution material.
INVESTIGATE THE UTILITY OF A MISCONCEPTION DETECTION APPLICATION AS AN EARLY DETECTION TOOL BASED ON FIVE-TIER DIAGNOSTICS TEST Novita, Dian; Muchlis; Yonata, Bertha; Asih, Findiyani Ernawati; Artiono, Rudianto
JCER (Journal of Chemistry Education Research) Vol. 9 No. 1 (2025): Volume 9 No. 1 June 2025
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/jcer.v9n1.p45-51

Abstract

Research into misconceptions is crucial in the field of education, particularly in subjects like chemistry, which are complex and prone to misunderstandings. Misconceptions—ideas held by individuals that deviate from established scientific understanding—can arise from various sources, including students, teachers, textbooks, and instructional methods. These inaccuracies can hinder effective learning and need to be addressed to enhance educational outcomes. Identifying and remediating misconceptions is challenging, requiring specialized tools and methods. Therefore, research into misconceptions aims to uncover and correct these misunderstandings to improve teaching strategies and student comprehension. Therefore, the research in this article is concerned with the practicality of the application of chemical representation diagnostic tests to identify chemical misconceptions, particularly on chemical equilibrium and chemical bonding materials. This research was carried out at Surabaya State University participated by 24 students from the Chemistry Education Study Program. In this research, the practicality of the chemical misconception diagnostic test application was obtained at 98.6% which indicates that the application is practical to use. In addition, obtained data on student diagnostic results, namely: 88.3% did not understand the concept; 10.4% had misconceptions; and 1.3% understood the concept on the topic of chemical bonding. Keywords: misconceptions, five-tier diagnostic test, chemical bonding, online application
Validity of LKPD Cognitive Conflict Strategy to Reduce Misconceptions in Hydrocarbon Material: Validitas LKPD Strategi Konflik Kognitif untuk Mereduksi Miskonsepsi pada Materi Hidroakrbon Irmayanti, Dwi; Yonata, Bertha
PendIPA Journal of Science Education Vol 9 No 2 (2025): June
Publisher : UNIB Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/pendipa.9.2.387-393

Abstract

The development of the cognitive conflict-based Student Worksheet (LKPD) plays a role in reducing students' misconceptions regarding hydrocarbons. In this study, the LKPD was created in print format to facilitate the completion of exercises. This LKPD contains information presentations, true statements, and ambiguous statements to create cognitive conflicts for students, as well as reflection questions for conceptual reconstruction. The aim of this research is to determine the validity of the cognitive conflict strategy LKPD. This study employs a Research and Development (R&D) approach based on the 4D development model, which includes Definition, Design, Development, and Dissemination. However, it only reaches the development stage. The research utilized a validation sheet instrument for the LKPD. The validation results indicate that the developed LKPD received a median score ranging from 4 to 5, indicating that the LKPD is valid based on content validity and construct validity. The conclusion of this study states that the developed cognitive conflict strategy LKPD is valid and can serve as an effective learning medium to reduce students' misconceptions about hydrocarbons based on validity aspects.
E-LAPD BASED ON PROBLEM BASED LEARNING TO IMPROVE STUDENTS' CRITICAL THINKING SKILLS Ajeng Pramesti, Siti Andini; Yonata, Bertha
JURNAL EDUSCIENCE Vol 12, No 3 (2025): Jurnal Eduscience (JES), (Authors from Malaysia and Indonesia)
Publisher : Universitas Labuhanbatu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36987/jes.v12i3.7160

Abstract

Purpose – Development of E-LAPD based on Problem Based Learning to improve students' critical thinking skills on reaction rate material in class XI SMA which is said to be valid, practical, and effective.Methodology – This research is a type of quantitative research with the ADDIE research development model. Data were collected from validation data, student questionnaire sheets, observation sheets, and pretest and posttest question sheets. Then the validation data was analyzed with a Likert scale to test validity, student questionnaire sheets and observation sheets to test practicality, and pretest and posttest question sheets were analyzed using N-Gain to test effectiveness.Findings – The results of the research in the form of E-LAPD based on problem-based learning to improve students' critical thinking skills on reaction rate material in class XI SMA are feasible to use because they meet the valid criteria with an average score of content and construct validation of 4 with a good category. The developed E-LAPD is declared practical in terms of the results of student response questionnaires and observation sheets with a percentage of 97.81%. The E-LAPD developed can be declared effective in training students' critical thinking skills based on the analysis of the N-Gain test results with a result of 0.90 in the high category, so it can be said that there is an increase in scores between before and after the use of E-LAPD.Contribution – Innovation in the development of learning media, namely electronic student activity sheets based on problem-based learning to improve students' critical thinking skills in class XI high school reaction rate material.
An Innovative Guided Inquiry Worksheet Integrated with the Nested Approach to Enhance Students’ Critical Thinking Skills in Chemical Equilibrium Saskara, Favian Agung Difa'; Yonata, Bertha
Jurnal Penelitian Pendidikan IPA Vol 11 No 7 (2025): July
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v11i7.11515

Abstract

This study aims to describe the feasibility of a guided inquiry-based worksheet integrated with a nested approach to train students' critical thinking skills in chemical equilibrium material. The feasibility of the worksheet is assessed from the aspects of validity, practicality, and effectiveness. The research method used is Research and Development (R&D), which uses the 4D development model by Thiagarajan (1974), which is limited to the stages of defining, designing, and developing. A limited trial was conducted in April 2025 on 29 high school students in Surabaya. The results of the study showed that the validity of the worksheet was included in the valid category with a median validity score of 5. The practicality of the worksheet was assessed as practical based on student responses (96.17%), and observation sheets ≥ 61% of student activities were relevant. The effectiveness of the worksheet was proven to be high, as indicated by the N-Gain analysis of the critical thinking skills test, which showed a high category. Based on these findings, it can be concluded that the guided inquiry-based worksheet integrated with a suitable approach for chemical equilibrium learning is suitable for use to improve student's critical thinking skills.
Pengembangan Lembar Kerja Murid (LKM) untuk Melatih Keterampilan Argumentasi Murid pada Materi Laju Reaksi Kelas XI SMA Sugiarti, Tutut; Yonata, Bertha
PendIPA Journal of Science Education Vol 9 No 2 (2025): June
Publisher : UNIB Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/pendipa.9.2.587-595

Abstract

This study aimed to determine the feasibility of student’s worksheet (LKM) for training students' argumentation skills in reaction rate material. The feasibility of LKM was reviewed in terms of validity, practicality, and effectiveness. The type of research used was Research and Development (R&D) with a 4D development model by Thiagarajan with three stages, namely definition, design, and development. A limited trial was conducted in class XI-5 at SMAN 1 Singgahan Tuban. The analysis of the feasibility of the LKM from the validity aspect, as seen from the content and construct, yielded a mode score of 5 in the highly valid category. The practicality aspect of the LKM was seen from the percentage of student response questionnaires of 98.07% and student activity observation sheets of 95.67%, which were classified as highly practical. The effectiveness aspect was analyzed based on the increase in pretest and posttest scores for argumentation skills and learning outcomes, reviewed through a paired sample t-test analysis. Both had a P-Value (1-tailed) of 0.000, so the P-Value (1-tailed) < 0.005, leading to the rejection of H0 and acceptance of H1. Therefore, it can be concluded that LKM is suitable for use as a learning medium to train students' argumentation skills in reaction rate material.
Development of Problem-Based E-Worksheet to Train Problem-Solving Skills in Reaction Rate Material Fadilah, Citra Dia; Yonata, Bertha
Edunesia : Jurnal Ilmiah Pendidikan Vol. 6 No. 3 (2025)
Publisher : Research, Training and Philanthropy Institution Natural Aceh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51276/edu.v6i3.1306

Abstract

This research aims to develop a PBL-based E-Worksheet to train problem-solving skills in reaction rate materials. The research method employed is the ADDIE model R&D, excluding the implementation stage. Data were obtained from study sheets, validation, activity observations, response questionnaires, as well as pretest and post-test skills. Validity analysis uses a median based on the Likert Scale. The practicality analysis utilizes percentages based on the Guttman Scale, whereas activity observation employs percentages at each meeting. Effectiveness analysis used the interpretation criteria of skill completeness and the N-Gain test. The results of the study showed that the E-Worksheet met the valid criteria, with a median score of 4 in content and construct validation across four categories, practicality as indicated by questionnaire results and activity observation at 95.56%, and effectiveness in practicing problem-solving skills, with an average N-Gain value of 0.87 in the high category. The implications of this study suggest that PBL-based E-Worksheets can serve as an alternative teaching material that supports the development of 21st-century skills, particularly in problem-solving related to reaction rate materials.
Validity Test of E-LKPD to Improve Students' Argumentation Skills on Chemical Equilibrium Material Andreani, Lucky Arthamevia; Yonata, Bertha
Hydrogen: Jurnal Kependidikan Kimia Vol. 12 No. 3 (2024): June-July 2024
Publisher : Universitas Pendidikan Mandalika

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/hjkk.v12i3.11500

Abstract

Dalam bidang pendidikan kimia, peserta didik diharapkan dapat mengembangkan keterampilannya sesuai dengan keterampilan yang dibutuhkan pada abad ke-21. Salah satu kompetensi kerangka 4C adalah berpikir kritis dan keterampilan komunikasi. Kedua kompetensi ini dikemas menjadi satu kesatuan dalam keterampilan argumentasi. Keterampilan argumentasi berperan dalam melatih siswa mengembangkan kemampuan berpikirnya sehingga meningkatkan pemahamannya. Tujuan penelitian ini adalah mengembangkan e-LKPD yang valid untuk meningkatkan kemampuan argumentasi siswa dalam konteks kesetimbangan kimia. Metodologi penelitian yang digunakan dalam penelitian ini adalah Research and Development (R&D) dengan menggunakan model pengembangan 4D yang dikemukakan oleh Thiagarajan, yang meliputi tahapan sebagai berikut: pendefinisian, perancangan, pengembangan, dan penyebaran. Namun penelitian ini hanya sebatas tahap pengembangan dengan uji coba terbatas untuk mengetahui kelayakan produk. Keterbatasan ini didasarkan pada beberapa pertimbangan antara lain waktu, tenaga, dan kendala. Validasi dilakukan oleh tiga orang validator yang terdiri dari dua orang dosen program studi pendidikan kimia dan satu orang guru mata pelajaran kimia. Skor validitas yang dihasilkan kemudian dianalisis menggunakan metode mode. Hasil penelitian menunjukkan bahwa E-LKPD valid ditinjau dari validitas isi. Nilai modus untuk kategori ini adalah 5 yang menunjukkan hasil yang sangat valid
Validity of Electronic Worksheet (E-LKPD) Based on PBL Model to Train Creative Thinking Skills on Acid-Base Material Ainiah, Errisya Nur; Yonata, Bertha
Hydrogen: Jurnal Kependidikan Kimia Vol. 12 No. 3 (2024): June-July 2024
Publisher : Universitas Pendidikan Mandalika

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/hjkk.v12i3.11587

Abstract

Creative thinking skills are important to train students to face the challenges of the 21st century and include higher order thinking skills. In addition, the independent curriculum provides freedom to think and innovate in learning. Therefore, one of the efforts to train creative thinking skills is to use relevant learning media, namely E-LKPD based on the Problem Based Learning (PBL) model. The purpose of this research is to produce PBL-based E-LKPD to train the creative thinking skills of grade XI students on acid-base material that is feasible to use, in terms of validity.  This research model is guided by Thiagarajan's 4D model (Define, Design, Develop, and Disseminate). However, the research only reached the development stage (Develop) to determine the validity of the product because there were limitations in time, funds, and energy. Validation was conducted by 3 validators to measure the content and construct validity of the developed E-LKPD. The results showed that the validity of the E-LKPD was considered valid based on the median score of content validity of 4 with a valid category and construct validity of 5 with a very valid category.
Co-Authors ., Khofifatin . ., Mahmadatul Faizah ., Nur Shofiyah ., Rini Julistiawati ., Triyas Rahayu Achmad Lutfi Achmad Lutfi Agatha, Berliana Agustine, Amalia Cahyaning Wulan AINI, KHURROTUL Ainiah, Errisya Nur AISYAH, DEWI Ajeng Pramesti, Siti Andini AL HIKMAH PUTRI, ARNI Andreani, Lucky Arthamevia ANGGRAENI PUTRI, RENNY Anita Rahmawati Asih, Findiyani Ernawati ATIK MUKMAINAH, SITI AULIYA, NURUL BERLIANA, YESSY CITRA ASHUDIK, PRAFESELIA Dian Novita Dian Novita Dian Novita Dian Savitri EKA AMBARWATI, DIAN Elok Suidibyo Era Melania Esty Ayu Fadhilatul Munawaroh Fadilah, Citra Dia Farhati Zakiyah FARIKAINI, AINUN FEBRIANTI SYAFITRI, PUTRI Findiyani Ernawati Fitri Annisaa Gholiyah, Sanih Guntur Trimulyono Haridha Nurfidayanti Nurfidayanti Harun Nasrudin I GUST MADE SANJAYA IKKE KURNIA MAYASARI, PRESTYLIA Intan Novitasari Irmayanti, Dwi JULIAN, AWANDA Kuny Abidatul Mahmudah KURNIYANINGSIH, BAYTI Lathifa, Azzahra Ghina Malichah, Siti Maria Monica SBW Maria Monica Sianita Mitarlis Mitarlis MUCHLIS Muchlis Mustainah Isnaini Muti'atus Sholehatu Nurdiyah Nita Kusumawati Noera Wahdaniyah Novita, Dian Nugrahani primary putri Nur Aini Nur Hayati NURKHOLIK, MOHAMAD Nurul Hidayati Nurul Hidayati Putri Nur Azizah, Putri Nur Putri, Alifiyah Putri, Reyna Miftahud Daroeni R. Ayu Sofiah Wilatika Rinaningsih Rinaningsih RUDIANTO ARTIONO, RUDIANTO Rusmini Rusmini SAFITRI, AINA Saskara, Favian Agung Difa' Selviana, Elfa Sri Hidayati S. Sri Poedjiastoeti SUGIARTI, TUTUT Suyatno SUYONO Suyono Suyono SWARA PURNAMASARI, LOKITA Syafira Humairoh Tikandi, Maulida Iftina Belladona Tukiran Tyas, Bella Wahyuning Utiya Azizah Varradiah Choirun Nisa&#039; Wahyu Budi Sabtiawan Widowati, Azza Nuriah Woro Setyarsih