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All Journal Jurnal Penelitian Pendidikan IPA (JPPIPA) PENDIPA Journal of Science Education Indonesian Journal of Educational Development (IJED) Jurnal Citra Magang dan Persekolahan Jurnal Pendidikan Kimia FKIP Universitas Halu Oleo
Muchlis
Universitas Negeri Surabaya
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Education Materials Science & Nanotechnology Mathematics Physics

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Development of Student Worksheet Oriented on PBL and Science Literacy to Improve Students' Critical Thinking Skills on Buffer Solution Material Fadhilatur Rochmatin; Muchlis
PendIPA Journal of Science Education Vol 7 No 2 (2023): June
Publisher : UNIB Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/pendipa.7.2.208-216

Abstract

This research intends to create a student worksheet that can be used to help students enchance their critical thinking skills. Validity, practicality, and effectiveness are taken into consideration when evaluating the viability of a student worksheet. The validity of the student worksheet is evaluated by specialists. Practice was based on student responses supported by activities during learning. Meanwhile, effectiveness was based on improving students' critical thinking skills in terms of classical learning completeness, N-gain, and non-parametric statistical tests. This research employed the Research and Development method devised by Borg and Gall, with 18 students from grade XI SMAN 20 Surabaya serving as research subjects. The research instruments used were validation sheets, response questionnaires, student activity observation sheets, and pretest and posttest question sheets. The results indicated that the student worksheet was usable. The evaluation results show the validity of the student worksheet, which received a score mode of 5 with a very good category. The practicality of student worksheet is seen from the positive response of students with a range of 88.9%-100% which is categorized as very practical. It is also supported by activities that are more relevant than irrelevant activities. The effectiveness of student worksheet is shown by the 89% completion of classical learning, medium and high N-gain criteria with successive percentages of 38.89% and 61.11%, and hypothesis tests with Sig. < 0.05 values.
UPAYA PENINGKATAN HASIL BELAJAR KIMIA SISWA MELALUI MODEL DISCOVERY LEARNING PADA BAHAN TITRASI ASAM BASA Diyani Wahyu Ningsih; Muchlis
Jurnal Citra Magang dan Persekolahan Vol 1 No 2 (2023): Jurnal Citra Magang dan Persekolahan
Publisher : Pusat Penelitian dan Pengabdian kepada Masyarakat STKIP Citra Bakti

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

This study aims to determine the improvement of learning outcomes by applying the Discovery Learning (DL) model on acid-base titration material. This research was conducted on phase F students, especially in class XI chemistry 2 totaling 35 students. This research method is Classroom Action Research consisting of 2 cycles of each cycle 1 meeting. The results obtained in this study are the learning outcomes of students. In cycle I, the number of students who have reached the minimum completeness criteria is 15 students (42.8%). In cycle II, the number of students who had reached the minimum completeness criteria was 29 students (82.8%). There was an increase in the percentage of completeness from cycle I to cycle II by 40.0%.
Development of the Student Worksheets Based on Assessment for Learning (AfL) to Improve Student Learning Outcomes of the Elements Periodic Table Galang Firman Syah; Muchlis
Jurnal Penelitian Pendidikan IPA Vol 11 No 3 (2025): March
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v11i3.10899

Abstract

This study aims to develop student worksheets based on assessment for learning to improve student learning outcomes on the elements periodic table, focusing on enhancing students' conceptual understanding. The study uses a 3D development model modified from the 4D model, consisting of three steps: define, design, and develop, applied to class X-7 at a school in Surabaya. Instruments for assessing validity include expert reviews of material and design, with a median score of ≥ 4, indicating content and construct validity. Practicality is measured through student response questionnaires and activity observations, with a positive response mode of ≥ 61%. The worksheet’s effectiveness is evaluated through the achievement of learning objectives, with an N-gain value showing 1 student (2.86%) in the medium category and 34 students (97.14%) in the high category. Posttest results show > 75% of students exceeding the passing grade. The Wilcoxon Signed Rank test shows a Pvalue < 0.05, indicating a significant difference in student learning outcomes. Based on these findings, the developed worksheet is deemed valid, practical, and effective in improving student learning outcomes.
Analysis of Learning Strategies of Students with Intellectual Disabilities Using E-LAPD-Based Liveworksheets in Chemical Compound Nomenclature Mochammad Rizky Kurniawan; Teguh Santoso; Rahmania Fitrah Sari; Muchlis; Dian Novita
Jurnal Penelitian Pendidikan IPA Vol 11 No 11 (2025): November
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v11i11.12986

Abstract

This study aims to analyze the learning strategies of students with intellectual disabilities using E-LAPD-based Liveworksheets on the nomenclature of chemical compounds by applying the UDL (Universal Design for Learning) approach. The research method used is a mixed of quantitative and qualitative. Quantitative analysis uses validation results and pretest and posttest scores. Pretest and posttest data were analyzed using N-gain. Qualitative analysis uses the results of interviews with students with intellectual disabilities, which will be analyzed using the NVivo application. The results of this study indicate that the application of the UDL (Universal Design for Learning) approach to students with intellectual disabilities is practical to implement. This is evidenced by the results of student interviews analyzed using the NVivo application using Cluster Analysis, grouping codes or themes based on their similarities in the text, producing a similarity matrix. In addition, this is evidenced by the pretest and posttest data analyzed using N-gain scores showing a good category with an N-gain score of ≥ 0.7. Based on these findings, it can be concluded that the application of the UDL (Universal Design for Learning) approach with E-LAPD to students with intellectual disabilities on the nomenclature of chemical compounds is practical to implement.
Kelayakan LKPD Berorientasi Assessment For Learning (Afl) Untuk Meningkatkan Hasil Belajar Peserta Didik Pada Materi Larutan Penyangga Gita Theresa Ary Sudarsono; Muchlis
Jurnal Pendidikan Kimia FKIP Universitas Halu Oleo Vol. 8 No. 2 (2023): Agustus 2023
Publisher : Jurusan Pendidikan Kimia Universitas Halu Oleo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36709/jpkim.v8i2.27

Abstract

This study aims to determine the feasibility of student worksheets to improve learning outcomes in buffer solutions. LKPD feasibility in terms of validity, practicality, and effectiveness. This development research uses the Borg and Gall model. Validity data was obtained from the validator's assessment using a validation questionnaire. Practicality data is obtained based on the responses and activities of students. Effectiveness data was obtained from the pretest-posttest N-gain test. The results showed that all validity items obtained an average percentage of 84.5% with valid criteria. Student response to LKPD was 88.9% -100% in very good category. Relevant activities of students at meetings 1 and 2 respectively were 88.9% and 94.5%. Based on the responses and activities of the students, the LKPD that was developed was included in the practical category. The effectiveness data shows that the overall N-gain in the high and medium categories is 100%, this indicates that the LKPD is said to be effective. Based on the validity, practicality and effectiveness of assessment-oriented worksheets for learning, they are effective in improving learning outcomes in buffer solutions.
Enhancing slow learners' competency skills through e-LAPD using the UDL approach in clinical chemistry learning Dian Novita; Zelinda Fitri Amalia; Rahmania Fitrah Sari; Muchlis; Rusmini; Findiyani Ernawati Asih
Indonesian Journal of Educational Development (IJED) Vol. 6 No. 4 (2026): February 2026
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat (LPPM) Universitas PGRI Mahadewa Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59672/ijed.v6i4.5618

Abstract

The digitalization of chemistry education plays a crucial role in providing equal learning, this study is essential due to the persistent learning gaps experienced by slow learners in digital chemistry instruction. This study investigated the competency development of two slow learners at SMAN 10 Surabaya through the implementation of digital student worksheets (e-LAPD) focused on balancing chemical equations and Nomenclature of Ionic and Covalent bonds, combined with individualized strategies integrated with the UDL strategy delivered via the Liveworksheet platform. Qualitative data from semi-structured interviews and observations were analyzed using NVivo 11, comparing competencies at the start and end of the learning process. This analysis identified three key competencies: explaining scientific phenomena, interpreting data, and analyzing and evaluating scientific evidence. To supplement the qualitative results, pretest and posttest assessments were conducted, revealing significant improvements in competency. Specifically, students showed an average 40% increase in both the DA and E categories when balancing chemical equations. In contrast, for the Nomenclature of Ionic and Covalent bonds, DA scores rose by 80%, while E scores improved by 100%. The findings confirm that the use of e-LAPD with individualized learning strategies effectively promotes competency improvement among slow learners in chemistry education, guiding future instructional development.
Development of Assessment for Learning-Based Student Activity Sheets to Enhance Students’ Problem-Solving Skills on Buffer Solution Topics Azhilah Nasywa Ceria Putrisigit; Muchlis
Jurnal Penelitian Pendidikan IPA Vol 12 No 7 (2026): In Progress
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v12i7.15800

Abstract

Problem-solving skills are important skills that need to be developed in chemistry learning, especially in buffer materials that are abstract and complex. However, the results of preliminary studies show that students' problem-solving skills are still relatively lacking. This research aims to develop Student Activity Sheets (LKS) with an Assessment for Learning (AfL) approach on valid, practical, and effective buffer solution materials to practice problem-solving skills. This research uses the Research and Development (R&D) method with a 4-D model which is modified into a 3-D model, limited to the define, design, and develop stages. The limited trial was carried out on 27 phase F students of SMA Hang Tuah 1 Surabaya using a one-group pretest-posttest design. The results showed that LKS obtained an average validity score of 4.27 with a valid category. The practicality of the LKS is shown by the percentage of student responses of 90.75% and student activities of 87.15%, both in the category of very practical. The effectiveness of the LKS was shown by the percentage of problem-solving skills of 93.29% and the results of the Wilcoxon test (p = 0.000 < 0.05). Thus, this LKS with an AfL approach is declared valid, practical, and effective to train students' problem-solving skills.
Co-Authors Azhilah Nasywa Ceria Putrisigit Diyani Wahyu Ningsih Fadhilatur Rochmatin Findiyani Ernawati Asih Galang Firman Syah Gita Theresa Ary Sudarsono Mochammad Rizky Kurniawan Novita, Dian Rahmania Fitrah Sari Rusmini Teguh Santoso Zelinda Fitri Amalia